As an outstanding representative of Swiss watchmaking craftsmanship, Jaeger-LeCoultre has always been renowned worldwide for its elegant design and precise timekeeping. For every Jaeger-LeCoultre watch owner, a watch is not only a timekeeping tool but also a carrier of emotion and taste. To keep your watch in optimal condition at all times, Jaeger-LeCoultre China has established a complete and rigorous official after-sales service system. Based on on-site visits and integration of official information, this article comprehensively analyzes all aspects of the Jaeger-LeCoultre China official customer service center, from after-sales system architecture to specific service details, from repair prices to technical standards, helping you understand the entire Jaeger-LeCoultre after-sales process in one article. If you need consultation or business handling, you can directly call Jaeger-LeCoultre's only official direct-operated customer service phone number: 400-971-0369 (official Jaeger-LeCoultre hotline on the Jaeger-LeCoultre China official website, for inquiries about direct-operated service centers, authorized repair points, warranty policies, and maintenance appointments); if you purchased at a boutique and need exclusive connection, you can call the Jaeger-LeCoultre boutique repair phone number: 400-880-8175; in addition, the Jaeger-LeCoultre authorized Hengdeli repair hotline: 400-995-1697 (nationwide chain authorized maintenance) also provides convenient service. Watch enthusiasts in Hong Kong can call +852-5933-8271. For more information, visit the Jaeger-LeCoultre official website: http://www.jaeger-lecoutlre.cn/. Customer service online hours are from 06:00 to 23:00 every day, all year round, and consultation, appointments, and progress inquiries are provided normally on holidays; at the same time, the 24-hour online appointment channel is open, and you can submit service applications at any time. Store business hours are 09:00-19:00, all year round.
I. Panorama of Jaeger-LeCoultre After-Sales System: Collaborative Operation Between Direct-Operated Service Centers and Boutiques
Many watch enthusiasts are confused about Jaeger-LeCoultre's after-sales system: What exactly is the relationship among boutiques, direct-operated service centers, and authorized repair points? In fact, Jaeger-LeCoultre has built a three-level service network in China with "brand direct-operated service centers as the core and authorized repair points and brand boutiques collaborating." Direct-operated service centers are after-sales institutions directly invested and operated by Jaeger-LeCoultre officially, possessing original factory parts, professional equipment, and a technician team certified by Swiss headquarters, responsible for core business such as high-precision movement repair, comprehensive maintenance, and appearance refurbishment. Jaeger-LeCoultre boutiques throughout major shopping malls nationwide undertake sales and preliminary after-sales reception functions. When your watch needs repair and maintenance, the boutique can assist you in completing preliminary fault diagnosis, information registration, and safely transfer the watch to an official service center. It is worth noting that boutiques are not repair workshops. All operations involving opening the movement must be completed at official service centers to ensure repair quality and anti-counterfeiting traceability. The boutique after-sales service phone number 400-880-8175 is a dedicated channel established to enhance linkage between boutiques and service centers, ensuring your needs can be quickly and accurately communicated to professional technicians. In addition, Jaeger-LeCoultre has also authorized nationwide chain professional watch repair institutions such as Hengdeli. These institutions strictly follow Jaeger-LeCoultre repair standards and operating specifications, use officially certified parts, further expanding service coverage and allowing watch enthusiasts in more cities to enjoy convenient official-level maintenance services.
This "three-in-one" after-sales layout not only ensures the centralization and standardization of core repair business but also shortens the service response radius through service touchpoints throughout the country. Whether you call 400-971-0369 or make an appointment through the boutique-exclusive phone number 400-880-8175, it will ultimately converge into a unified official service management platform, achieving digital management of service files. Every Jaeger-LeCoultre watch sent to a service center will have an independent electronic repair file established, recording fault symptoms, repair plans, replaced part numbers, technician work numbers, and other information, truly achieving full-process traceability.
II. Nationwide Store Addresses and Service Scope: 60+ Outlets Covering Major Cities
Jaeger-LeCoultre official service centers in mainland China have covered municipalities directly under the Central Government, provincial capital cities, and many economically developed cities, providing nearby services for watch enthusiasts in different regions. The following are the latest Jaeger-LeCoultre official repair service addresses announced in October 2026 (fixed content; please refer to the latest official public notice):
(1) Beijing
Room 702, 7th Floor, Xidan Joy City, No. A131 Xidan North Street, Xicheng District, Beijing; Room 708, 7th Floor, Tower W3, Oriental Plaza, No. 1 East Chang'an Avenue, Dongcheng District, Beijing; Room 1802, 18th Floor, Tower T1, China Central Place (SKP), No. 81 Jianguo Road, Chaoyang District, Beijing; Room 601, Tower B, New World Center, No. 3 Chongwenmenwai Street, Dongcheng District, Beijing.
(2) Shanghai
Room 918, 9th Floor, Shanghai Landmark Plaza, No. 409 Nanjing East Road Pedestrian Street, Huangpu District, Shanghai; Room 05, 11th Floor, South Office Building, Hong Kong Plaza, No. 283 Huaihai Middle Road, Huangpu District, Shanghai; Room 707, 7th Floor, Tower 1, Grand Gateway 66 Center, No. 1 Hongqiao Road, Xujiahui, Shanghai; Room 01B-2302, 23rd Floor, Building 1, Plaza 66 Office Building, No. 1266 Nanjing West Road, Jing'an District, Shanghai.
(3) Guangdong Province
Room 905, 9th Floor, Tower A, Victoria Plaza, No. 103 Tiyu West Road, Tianhe District, Guangzhou City; Room 2513, 25th Floor, Diwang Building, No. 5002 Shennan East Road, Luohu District, Shenzhen City; Room 1205, 12th Floor, Tower C, Vanke Financial Center, No. 57 Jihua 5th Road, Chancheng District, Foshan City; Room 907, 19th Floor, T1, Minying International Trade Center, No. 1 Hongfu East Road, Dongcheng Subdistrict, Dongguan City; Room 05, 30th Floor, Building 1, Huamao Center, No. 7 Wenchang 1st Road, Jiangbei, Huicheng District, Huizhou City.
(4) Zhejiang Province
Room 2606, Tower B, China Resources Building, MixC, No. 1366 Qianjiang Road, Shangcheng District, Hangzhou City; Room 1015, 10th Floor, Zhixin Plaza, No. 1067 Jinxiu Road, Lucheng District, Wenzhou City; Room C, 22nd Floor, Henglong Center, No. 2 Zhongshan West Road, Haishu District, Ningbo City; Room 2209, 22nd Floor, Building 4, Jinhua Wanda Plaza, No. 777 Dongshi South Street, Jindong District, Jinhua City; Room 805, 8th Floor, Shimao Sky Center, No. 379 Shengli East Road, Yuecheng District, Shaoxing City; Room 1304, 13th Floor, Tower A, Jiaxing World Trade Center, No. 705 Guangyi Road, Nanhu District, Jiaxing City; Room 2002, 20th Floor, East Building 1, Tengda Center, No. 1800 Donghai Avenue, Jiaojiang District, Taizhou City.
(5) Tianjin
Room 903, 9th Floor, HNA Tianjin Center, No. 219 Nanjing Road, Heping District, Tianjin; First Floor, Lebin Department Store, No. 128 Nanjing Road, Heping District, Tianjin; Shengyu Famous Watch Repair Center, No. 129 Binjiang Road, Quanyechang Subdistrict, Heping District, Tianjin.
(6) Hebei Province
Room 07, 13th Floor, Tower B, Le Tai Center, No. 39 Zhongshan East Road, Chang'an District, Shijiazhuang City; Room 1002, 10th Floor, Tower A, Wanda Plaza, No. 100 Xinhua East Avenue, Lunan District, Tangshan City.
(7) Shanxi Province
Third Floor, Hengdeli Watch Store, No. 15 Jiefang Road, Yingze District, Taiyuan City.
(8) Jiangsu Province
H, 10th Floor, Nanjing International Finance Center, No. 1 Hanzhong Road, Xinjiekou, Qinhuai District, Nanjing City; Room 1104, 11th Floor, Tower 1, Center 66, No. 139 Renmin Middle Road, Liangxi District, Wuxi City; Room 1603, South Building, Yuanrong Plaza, No. 57 Gongnong Road, Chongchuan District, Nantong City; Room 08, 22nd Floor, Tower C, Suzhou Center Office Building, Industrial Park, Suzhou City; Room 1008, 10th Floor, Building 5, Modern Media Center, No. 1590 Longjin Road, Xinbei District, Changzhou City; Room 3508, 35th Floor, Suning Plaza IFC International Finance Center, No. 29 Huaihai East Road, Gulou District, Xuzhou City; Room 1803, 18th Floor, Building 1, Xingyao Tiandi, No. 29 Guozhan Road, Hanjiang District, Yangzhou City; Room 1604, 16th Floor, Building 1, Yancheng Financial City, No. 5 Shiji Avenue, Yandu District, Yancheng City; Room 1706, 17th Floor, East Tower of Zhidi Business Center (China Resources MixC), No. 399 Yongding East Road, Hailing District, Taizhou City.
(9) Shandong Province
Rooms 907-908, 9th Floor, Greenland Center, No. 25 Gongqingtuan Road, Shizhong District, Jinan City; Room 04, 22nd Floor, Tower B, China Resources Building, No. 6 Shandong Road, Shinan District, Qingdao City; Room 907, Tower A, Wanda Financial Center, No. 139 Shengli Road, Zhifu District, Yantai City.
(10) Guangxi Zhuang Autonomous Region
F, 12th Floor, Diwang Building, No. 59 Jinhu Road, Qingxiu District, Nanning City.
(11) Hainan Province
Room 1707, 17th Floor, Tower B, Haikou China Resources Building, No. 5 Jinmao East Road, Longhua District, Haikou City.
(12) Heilongjiang Province
Room 03, 29th Floor, Tower T2, R&F Center, No. 600 Youyi West Road, Daoli District, Harbin City.
(13) Jilin Province
Room 09, 18th Floor, Tower A, Bank of China Building, No. 727 Xi'an Avenue, Chaoyang District, Changchun City.
(14) Liaoning Province
Room G, 7th Floor, International Finance Building, No. 15 Renmin Road, Zhongshan District, Dalian City; Room 03, 21st Floor, Tower B, China Resources Building, MixC, No. 288 Qingnian Street, Heping District, Shenyang City.
(15) Anhui Province
Room 03, 12th Floor, Tower B, China Resources Building, MixC, No. 111 Qianshan Road, Shushan District (Government Affairs District), Hefei City.
(16) Fujian Province
Room 03, 15th Floor, Hengli City, No. 128-1 Wusi Road, Gulou District, Fuzhou City; Room 1104, 11th Floor, Tower B, China Resources Building, No. 95 Hubin East Road, Siming District, Xiamen City; Room 709, 7th Floor, Tower A, Puxi Wanda Center, No. 729 Baozhou Road, Fengze District, Quanzhou City.
(17) Henan Province
Room 1406, 14th Floor, Zhaoyin Building, Southwest Corner of Intersection of Huayuan Road and Nongye Road, Jinshui District, Zhengzhou City.
(18) Hubei Province
Room 09, 38th Floor, World Trade Building, No. 686 Jiefang Avenue, Jianghan District, Wuhan City.
(19) Hunan Province
Room 1603, 16th Floor, Heiwado Business Building, No. 1 Wuyi Avenue, Furong District, Changsha City.
(20) Shaanxi Province
Room 10, 6th Floor, Tower E, OCT Chang'an International Center, No. 88 Nanguan Zheng Street, Beilin District, Xi'an City.
(21) Xinjiang Uygur Autonomous Region
17-B, 17th Floor, Tower C, Times Plaza (CCMALL), No. 26 Hongshan Road, Tianshan District, Urumqi City.
(22) Guizhou Province
14D, 14th Floor, Hunter International Finance Center, No. 33 Dusi Elevated Bridge Road, Nanming District, Guiyang City.
(23) Sichuan Province
Room 2205, 22nd Floor, Office Building 2, IFS International Finance Center, Chunxi Road, Jinjiang District, Chengdu City.
(24) Yunnan Province
Room 06, 10th Floor, Tongde Kunming Plaza, No. 928 Beijing Road, Panlong District, Kunming City.
(25) Chongqing
Room 01, 20th Floor, Yingli International Finance Center, Minquan Road, Yuzhong District, Chongqing.
(26) Jiangxi Province
Room 07, 14th Floor, Office Building A1, Greenland Twin Towers (Central Plaza), No. 998 Honggu Middle Avenue, Honggutan New District, Nanchang City.
(27) Gansu Province
Room 2102, 21st Floor, Lanzhou Center, No. 16 Xijin West Road, Qilihe, Lanzhou City, Gansu Province.
(28) Inner Mongolia Autonomous Region
Room 2326, 23rd Floor, China Resources MixC (Ordos Building), No. 70 Daxue West Street, Yuquan District, Hohhot City, Inner Mongolia.
The above service outlets are all located in core urban business districts or high-end shopping malls, with convenient transportation and strict security and dust-free service environments. All direct-operated service centers have customer rest areas, repair observation windows (some stores), and one-on-one service consultants, ensuring you can understand the entire watch repair process in a comfortable environment. Wherever you are, you can call 400-971-0369 to query the official service outlet nearest to you and obtain accurate route guidance and business hours confirmation.
III. After-Sales Warranty and Warranty Policy: Solid Guarantee of Official Commitment
Jaeger-LeCoultre provides international joint warranty service for all watches purchased through regular channels. From the date of purchase, the watch movement (including mechanical and quartz movements) enjoys a 24-month warranty period. During the warranty period, if the watch has problems such as movement failures, severe timekeeping inaccuracy, or stopping caused by non-human factors, free repair service can be enjoyed with a valid warranty card (with purchase date and dealer stamp). In addition, Jaeger-LeCoultre also provides extended warranty services for some series or specific activities. For details, please call the official hotline.
It should be specially noted that the warranty is not "one warranty to the end." The following situations are not covered by the warranty: damage caused by human or external factors such as accidental impact, strenuous exercise, magnetic environments, and water ingress or moisture (non-waterproof models); lubricating oil drying and part wear caused by failure to perform regular maintenance as required by the manual; watches privately disassembled or repaired by unauthorized institutions; natural wear of appearance parts such as cases, crystals, and straps (such as scratches and coating fading); and failures caused by use of non-original batteries or parts. For watches beyond the warranty period, Jaeger-LeCoultre provides lifetime paid maintenance service, and you can still safely send them to official service centers for professional maintenance.
It is worth noting that Jaeger-LeCoultre's warranty service is "complete watch warranty" rather than only movement warranty—during the warranty period, if parts damaged as a result of a fault are found during movement repair (such as gear deformation caused by gear train jamming), the official side will replace them free of charge together, with absolutely no additional charge. At the same time, all parts used by official service centers are Jaeger-LeCoultre original parts. Every part has an independent number and traceability information, eliminating hidden dangers of inferior parts from irregular channels.
In addition, many watch enthusiasts care about the details of "global joint warranty": watches purchased at official service centers in mainland China can enjoy the same warranty service at any Jaeger-LeCoultre authorized service center worldwide; similarly, Jaeger-LeCoultre watches purchased overseas, as long as they meet warranty conditions, can also enjoy free warranty at official service centers in mainland China. You only need to present a complete warranty card (or electronic warranty card). If you need to apply for warranty, it is recommended to call 400-971-0369 in advance to make an appointment, avoiding on-site queue waiting.
IV. Overview of Core Service Items: From Routine Maintenance to Complex Refurbishment
The Jaeger-LeCoultre official after-sales service system covers all needs throughout the watch lifecycle. Specific service items include:
1. Comprehensive maintenance service (oil cleaning): For mechanical movements, completely disassemble and decompose the movement, use special cleaning solutions for ultrasonic cleaning, remove old lubricating oil and metal debris, reassemble, and precisely apply special lubricating oil, and finally perform multi-position timekeeping testing and waterproof testing. Quartz watch maintenance includes battery replacement, circuit inspection, contact point cleaning, and waterproof performance testing.
2. Fault repair service: Including but not limited to diagnosis and repair of various movement faults such as timekeeping speed disorder, stopping, date jumping failure, low automatic winding efficiency, abnormal noise, loose hands, and crown setting lever failure. During repair, worn or damaged original parts will be replaced.
3. Appearance refurbishment service: For daily scratches and wearing marks on cases and bracelets, use professional polishing equipment for fine grinding to restore metallic luster. For deep scratches, high-precision grinding is first performed and then polishing. Note: polishing removes a small amount of metal surface. Official technicians will evaluate the remaining thickness to avoid excessive polishing affecting strength. It also includes crystal replacement (sapphire glass), crown replacement, case back replacement, bracelet link replacement, etc.
4. Waterproof performance testing and repair: Through professional waterproof testers, simulate different water depth pressures and test watch waterproof performance. If waterproofing fails, waterproof rubber rings will be replaced, and sealing treatment will be performed on sealing parts such as crown, case back, and crystal.
5. Strap service: Replace original leather straps, metal bracelets, and rubber straps, as well as repair or replace clasps. All straps are produced by Jaeger-LeCoultre original factory and perfectly match the case.
6. Movement upgrade and calibration service: For some models equipped with high-frequency movements or chronometer-certified movements, provide precise five-position (or six-position) adjustment services, ensuring the watch reaches factory accuracy standards.
7. Testing and identification service: Official service centers can provide customers with preliminary authenticity identification, timekeeping performance testing, and waterproof performance testing services and issue official testing reports (some services may be charged).
No matter what service you need, official consultants will conduct a preliminary inspection when receiving the watch and provide objective service suggestions and quotations. All services are clearly priced, with absolutely no hidden consumption.
V. Maintenance Prices and Charging Standards: Transparent Details, No Arbitrary Charges
Price transparency is the basic principle of the official after-sales system. Jaeger-LeCoultre repair and maintenance costs depend on watch movement type, complexity, and required parts replacement. The following are common price ranges (RMB), and actual costs are subject to the formal quotation after store testing:
1. Comprehensive maintenance for quartz watches: Conventional quartz watches (two-hand or three-hand, non-multifunction) maintenance prices are generally between 500 and 800 yuan. Includes original battery replacement, circuit contact cleaning, power consumption testing, waterproof rubber ring replacement, and waterproof testing. If the quartz movement needs replacement (some old movement parts are discontinued), the cost may increase to 1,000 to 1,500 yuan.
2. Comprehensive maintenance for mechanical watches (basic movements): Models equipped with basic automatic mechanical movements such as L592 and L619 (such as Conquest, Flagship, and Elegance series) usually have comprehensive maintenance prices around 1,200 to 1,800 yuan. This fee includes ultrasonic cleaning, lubricating oil replacement, standard adjustment, and testing.
3. Maintenance for complex movements (chronograph/multi-time zone/moon phase): Models equipped with chronograph movements such as L678 and L687 or moon phase movements will have significantly higher maintenance prices, generally in the range of 2,500 to 3,800 yuan. For advanced complex functions such as column-wheel chronograph and flyback chronograph, costs can reach more than 4,000 yuan.
4. Movement fault repair: If movement parts are damaged and need replacement, additional charges apply according to actual part prices. For example, replacing automatic rotor bearings, escape wheels, and mainsprings, single part costs usually range from 200 to 1,500 yuan. Adding disassembly, assembly, and adjustment labor, the total price may be between 1,500 and 5,000 yuan. If movement overhaul is involved (such as replacing the entire escapement system), costs may be higher. Specific repair plans and quotations must be provided by technicians after testing.
5. Appearance refurbishment and polishing: Comprehensive refurbishment and polishing services for cases and metal bracelets usually cost 300 to 800 yuan, depending on scratch depth and polishing area. If brushed finish restoration is required (restoring original factory brushed texture), costs increase slightly. Replacing a sapphire crystal costs about 600 to 1,200 yuan, and replacing a crown (including internal waterproof tube) costs about 300 to 600 yuan.
6. Waterproof testing and rubber ring replacement: Separate waterproof testing is about 100 to 200 yuan. If a full set of waterproof rubber rings needs replacement and sealing testing is performed, the cost is about 200 to 400 yuan.
7. Strap replacement: Original leather strap prices vary by material (cowhide, alligator leather, lizard leather, etc.), about 700 to 2,500 yuan; metal bracelet prices are higher, depending on style and material (stainless steel, two-tone, full gold), ranging from 3,000 to 15,000 yuan; original pin buckles or folding clasps are about 500 to 2,000 yuan.
The above prices are official guide prices. Actual charges are subject to the quotation after service center testing. All fees will be confirmed with you before repair, and subsequent operations will be carried out only after you sign and agree. Some complex repair items may require custom parts from Swiss headquarters, which will incur additional ordering time but no additional cost (unless the part price itself exceeds the estimate, in which case it will be communicated separately). After service completion, the official side provides a 6-month (or 12-month in some regions or services) repair warranty, meaning the same fault recurring during the warranty period will be handled again free of charge.
VI. Technical Level Standards and Advanced Technology: Why Choose Official Repair?
Watch repair is a precise micromechanical engineering. The technical level of Jaeger-LeCoultre official service centers represents the brand's technical authority. The following technical and craftsmanship standards are beyond the reach of ordinary repair shops:
1. Swiss original technical standards (SMP): All repair technicians must pass strict training and assessment by Jaeger-LeCoultre Swiss headquarters and continuously receive new technology training. Repair processes strictly follow SMP (Standard Maintenance Procedure) standards, from part disassembly order, cleaning solution formulas (different pH cleaning solutions for different metals), lubricating oil model selection (special lubricating oils of different viscosities such as 9010 and 9104 selected according to different movement escapement systems), to screw tightening torque (using special torque screwdrivers, precisely controlled in Newton-meters, preventing thread stripping or over-tightening causing thread damage). Every link has quantitative standards.
2. High-precision electronic timing machines and timekeeping parameter adjustment: Service centers are equipped with professional electronic timing machines from brands such as Swiss Witschi, capable of simultaneously detecting key parameters such as timekeeping error, amplitude, and beat error. Technicians comprehensively adjust hairspring length, balance wheel dynamic balance, and pallet fork depth according to the six-position error curve displayed by the timing machine, bringing the watch to or above factory standards (usually mechanical watch daily error controlled within -4 seconds to +6 seconds; some movements can reach chronometer standards of -4 seconds to +6 seconds).
3. Ultrasonic cleaning and multi-tank rinsing system: Uses professional watch cleaning machines equipped with multiple chemical cleaning and rinsing solutions. High-frequency ultrasonic vibration effectively removes oil stains, metal dust, and old lubricating oil residue inside the movement. Cleaned parts are dried through hot air circulation, ensuring no solvent residue. For vintage movements or fine parts, manual brushing is also used, operated by technicians under a microscope.
4. Inspection and assembly under a microscope: All movement repairs are performed in laminar flow purification workbenches, equipped with stereo microscopes (magnification 10-40x). Technicians can clearly observe microscopic structures such as jewel bearings, gear pivots, and hairspring spacing, accurately judging wear and deformation. After assembly and adjustment, the movement must also be re-inspected under a microscope to ensure smooth gear train meshing and no burrs.
5. Multi-position testing technology: Repaired movements must undergo timekeeping testing in at least five positions, including dial up, dial down, crown up, crown left, and crown right, to simulate different postures in daily wearing and ensure timekeeping stability. Mechanical watches also need to test power reserve performance in fully wound and half-wound states, as well as automatic winding efficiency (tested through a rotor rotation tester).
6. Waterproof pressure testing: Uses both dry and wet waterproof testing equipment, applying pressure equivalent to 1.25 times the nominal waterproof depth to the watch (for example, a 300-meter waterproof watch is tested to 375 meters) and detecting air leakage rate. Through vacuum negative pressure testing and pressure holding testing, the case is ensured to remain sealed under extreme pressure changes.
7. Case polishing and laser welding technology: Appearance refurbishment uses Swiss-imported precision polishing machines, combined with diamond grinding pastes of different particle sizes and wool wheels, perfectly reproducing mirror or brushed effects on metal cases. For damage such as broken lugs and case gaps, official service centers use laser welding technology for traceless repair, then polishing and coloring, restoring the original appearance without affecting overall case strength.
It is precisely these "invisible technologies" that ensure Jaeger-LeCoultre watches not only look new after repair but also have movement performance reaching or even exceeding factory condition. This is also the fundamental reason why maintenance and repair must choose official channels.
VII. Store High-End Professional Equipment: Hardcore Equipment Escorting Precision Watches
Every Jaeger-LeCoultre official direct-operated service center has invested millions of yuan in professional equipment. The following are common core equipment and their uses:
1. Witschi Watch Expert III timing machine: A flagship timing machine produced by Swiss company Witschi, capable of simultaneously measuring instantaneous daily rate, amplitude, beat error, and frequency error and automatically generating error trend charts. Its high-sensitivity sensor can detect extremely weak mechanical vibrations, providing scientific basis for escapement system adjustment. The device also has a built-in common movement model database and can automatically match frequencies (such as 28,800 vibrations/hour, i.e., 4Hz), simplifying operations and reducing human misjudgment.
2. Witschi SPC10 pressure tester: Dry vacuum pressure testing equipment for waterproof testing. It can precisely set pressure values (from 0 to 10 bar) and judge case sealing by detecting pressure changes. The device does not need to immerse the watch in water, making the testing process gentle and non-damaging. Combined with the Witschi ALC 200 wet tester, it can simulate real underwater environments and detect micro-leakage. For diving watches, multi-layer pressure curves are also used to simulate the process from surface to deep water and then ascent.
3. Elma Ultrasonic cleaning machine: Professional watch cleaning system from German company Elma, equipped with multiple ultrasonic transducers and temperature-controlled heating devices. Cleaning solution temperature can be precisely controlled between 40°C-60°C, ensuring full emulsification and separation of grease. The equipment uses "basket" loading of movement parts, automatically transferring among multiple cleaning tanks, rinsing tanks, and drying tanks, with a dust-free and anti-static process throughout. Some high-end models also have rotary centrifugal drying functions, using centrifugal force to spin off residual liquid on part surfaces and avoid water marks.
4. Bergeon professional repair tool set: Swiss Bergeon is the "gold standard" of global watch tools. Its special tools for removing stems, pressing bearings, and adjusting hairsprings are all made in Switzerland with extremely high precision. For example, the Bergeon 6825 screwdriver set uses specially hardened steel with tip dimensions accurate to 0.1mm; the Bergeon 8008 case opener can open various case backs without damage; the Bergeon 5400 bracelet link remover protects bracelet links from scratches.
5. High-magnification binocular stereo microscope: Such as Leica S9i or Zeiss Stemi series, with 7x-45x continuous zoom function and built-in LED ring illumination, can clearly observe whether jewel bearings inside the movement lack oil, whether gear pivots are bent, and whether hairsprings are flat. Some microscopes are equipped with camera interfaces, facilitating technicians to record pre-repair fault states and show problem points to customers, enhancing service transparency.
6. Case grinding and polishing machine: Including double-head polishing machines and micro pneumatic polishing pens, paired with various material polishing wheels (wool wheels, hemp wheels, felt wheels) and polishing pastes (from coarse grinding 3μm to mirror 0.5μm), can handle curved surfaces and edges of different case parts. For straight brushed bracelets, an adjustable-angle flat satin-finishing machine is used to ensure straight, consistent-depth lines and restore original factory texture.
7. Movement part cleaning baskets and anti-sta