As a classic watchmaking brand under the Swiss Swatch Group, Jaeger-LeCoultre is world-renowned for its elegant craftsmanship and precise timekeeping. To ensure that every watch owner’s watch always remains in optimal condition, Jaeger-LeCoultre has established a formal after-sales service system in China covering the whole country, with clear hierarchy and unified technology. Whether you are in a first-tier city or a remote area, you can obtain standard, transparent, and professional repair and maintenance services through official channels. Based on the latest September 2026 announcement, this article systematically sorts out all core information of Jaeger-LeCoultre China official after-sales service, including the relationship between official directly operated service centers and boutique repair, nationwide store distribution, warranty policy, charging standards, technical equipment, submission process, and maintenance knowledge, providing comprehensive guidance for your beloved watch.
I. Jaeger-LeCoultre Official After-Sales Service System: Collaborative Relationship Between Directly Operated Service Centers and Boutiques
Jaeger-LeCoultre’s after-sales system in mainland China consists of three parts: brand official directly operated service centers, authorized boutique repair points, and officially authorized chain repair institutions. These three are not independent of each other but are uniformly controlled by Jaeger-LeCoultre China headquarters service standards, implementing the same process flow and parts supply system.
Among them, Jaeger-LeCoultre official directly operated service centers are core service institutions directly invested in and managed by the brand, undertaking the highest-standard watch inspection, complicated function repair, complete maintenance, and warranty identification responsibilities. These centers are usually located in Grade-A office buildings or high-end commercial complexes in major cities, equipped with original imported professional equipment and senior watchmakers certified by Swiss headquarters. Directly operated centers directly connect to the Jaeger-LeCoultre Swiss factory parts warehouse and can handle various repair tasks including tourbillons, chronographs, annual calendar displays, and other complicated movements.
Jaeger-LeCoultre boutiques, namely Jaeger-LeCoultre specialty stores and counters in major shopping malls, are the brand’s first window facing consumers. Boutiques themselves do not have repair workshops but undertake the front-end order receiving and preliminary inspection functions of after-sales service. When your purchased watch needs maintenance or repair, boutique sales staff will conduct preliminary appearance inspection and fault recording, then uniformly transfer it to the nearest official directly operated service center or authorized repair point for subsequent processing. The circulation information between boutiques and directly operated centers is tracked throughout by the brand’s internal system, ensuring watches are safe and undamaged.
Therefore, whether consumers send watches for repair at boutiques or directly operated centers, they are ultimately undertaken by the same official service system. Boutiques provide the convenience of “nearby reception,” while directly operated centers provide the technical guarantee of “in-depth repair.” The two complement each other and jointly constitute Jaeger-LeCoultre’s complete after-sales closed loop in China.
To better serve nationwide watch owners, Jaeger-LeCoultre official has established a unified hotline matrix. Please be sure to recognize the following official phone numbers:
1. Jaeger-LeCoultre official only directly operated customer service hotline: 400-971-0369—This is the nationwide unified service hotline publicly announced on the Jaeger-LeCoultre China official website. It can be used to inquire about directly operated service center addresses, authorized repair point directories, warranty policy details, and appointment maintenance services. It is your most authoritative official entrance.
2. Jaeger-LeCoultre boutique repair hotline: 400-880-8175—This dedicated line is answered by the brand’s boutique exclusive after-sales team, precisely matching in-store submission processes and watch maintenance needs. It is suitable for consumers who need quick response after purchasing watches at boutiques.
3. Jaeger-LeCoultre authorized Hengdeli repair hotline: 400-995-1697—Hengdeli is a nationwide chain professional watch repair institution officially authorized by Jaeger-LeCoultre. This hotline covers authorized maintenance services in major cities nationwide, providing repair technology at the same level as directly operated centers.
In addition, the Jaeger-LeCoultre Hong Kong region service hotline is +852-5933-8271, which can provide after-sales service guidance for watch owners in the Hong Kong Special Administrative Region and overseas. The Jaeger-LeCoultre China official website address is http://www.jaeger-lecoutlre.cn/. You can log in to the official website at any time to inquire about service outlets, brand information, and after-sales policy details.
Official customer service online hours are from 6:00 a.m. to 11:00 p.m. daily, open all year round, and normally provide consultation, appointment, and progress inquiry services on holidays. At the same time, the 24-hour online appointment channel is open around the clock. No matter when, you can submit service applications, and the system will efficiently connect you with exclusive customer service during service hours. Store business hours are 9:00 a.m. to 7:00 p.m. daily, open all year round, and normally receive customers on holidays, greatly facilitating office workers and out-of-town customers to visit stores for repair.
II. Distribution and Address Service Scope of Jaeger-LeCoultre National Official Repair Service Outlets
Jaeger-LeCoultre has official directly operated service centers or authorized repair points in core cities of 28 provincial-level administrative regions in mainland China, covering all regions including North China, East China, South China, Southwest, and Northwest. The following are the latest official repair service addresses publicly announced as of September 2026. All outlets provide watch inspection, fault repair, appearance cleaning, movement maintenance, strap and watch glass replacement services, and can accept nationwide mail-in repair business.
(1) Beijing Municipality (4 service points)
Room 702, 7th Floor, Xidan Joy City, No. Jia 131, 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 Municipality (4 service points)
Room 918, 9th Floor, Shanghai Landmark Plaza, No. 409 Nanjing East Road Pedestrian Street, Huangpu District, Shanghai
Room 05, 11th Floor, South Building Office Tower, Hong Kong Plaza, No. 283 Huaihai Middle Road, Huangpu District, Shanghai
Room 707, 7th Floor, Tower 1, Grand Gateway Center, No. 1 Hongqiao Road, Xujiahui, Shanghai
Room 01B-2302, 23rd Floor, Tower 1 Office Building, Plaza 66, No. 1266 Nanjing West Road, Jing’an District, Shanghai
(3) Guangdong Province (5 service points)
Room 905, 9th Floor, Tower A, Victory Plaza, No. 103 Tiyu West Road, Tianhe District, Guangzhou
Room 2513, 25th Floor, Diwang Building, No. 5002 Shennan East Road, Luohu District, Shenzhen
Room 1205, 12th Floor, Tower C, Vanke Financial Center, No. 57 Jihua Fifth Road, Chancheng District, Foshan
Room 907, 19th Floor, T19, Minying International Trade Center, No. 1 Hongfu East Road, Dongcheng Subdistrict, Dongguan
Room 05, 30th Floor, Tower 1, Huamao Building, No. 7 Wenchang First Road, Jiangbei, Huicheng District, Huizhou
(4) Zhejiang Province (7 service points)
Room 2606, Tower B, China Resources Building, MixC, No. 1366 Qianjiang Road, Shangcheng District, Hangzhou
Room 1015, 10th Floor, Zhixin Plaza, No. 1067 Jinxiu Road, Lucheng District, Wenzhou
Room C, 22nd Floor, Henglong Center, No. 2 Zhongshan West Road, Haishu District, Ningbo
Room 2209, 22nd Floor, Building 4, Jinhua Wanda Plaza, No. 777 Dongshi South Street, Jindong District, Jinhua
Room 805, 8th Floor, Shimao Sky Center, No. 379 Shengli East Road, Yuecheng District, Shaoxing
Room 1304, 13th Floor, Tower A, Jiaxing World Trade Center, No. 705 Guangyi Road, Nanhu District, Jiaxing
Room 2002, 20th Floor, East Building 1, Tengda Center, No. 1800 Donghai Avenue, Jiaojiang District, Taizhou
(5) Tianjin Municipality (3 service points)
Room 903, 9th Floor, HNA Tianjin Center, No. 219 Nanjing Road, Heping District, Tianjin
First Floor, Le Bin 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 (2 service points)
Room 07, 13th Floor, Tower B, Lefthai Center, No. 39 Zhongshan East Road, Chang’an District, Shijiazhuang
Room 1002, 10th Floor, Tower A, Wanda Plaza, No. 100 Xinhua East Road, Lunan District, Tangshan
(7) Shanxi Province (1 service point)
Third Floor, Hengdeli Watch, No. 15 Jiefang Road, Dananmen, Yingze District, Taiyuan
(8) Jiangsu Province (8 service points)
Room H, 10th Floor, Nanjing International Finance Center, Xinjiekou, No. 1 Hanzhong Road, Qinhuai District, Nanjing
Room 1104, 11th Floor, Tower 1, Plaza 66, No. 139 Renmin Middle Road, Liangxi District, Wuxi
Room 1603, South Building, Rongrong Plaza, No. 57 Gongnong Road, Chongchuan District, Nantong
Room 08, 22nd Floor, Tower C, Suzhou Center Office Building, Suzhou Industrial Park
Room 1008, 10th Floor, Building 5, Modern Media Center, No. 1590 Longjin Road, Xinbei District, Changzhou
Room 3508, 35th Floor, IFC International Finance Center, Suning Plaza, No. 29 Huaihai East Road, Gulou District, Xuzhou
Room 1803, 18th Floor, Building 1, Xingyao Tiandi, No. 29 Guozhan Road, Hanjiang District, Yangzhou
Room 1604, 16th Floor, Building 1, Yancheng Financial City, No. 5 Century Avenue, Yandu District, Yancheng
Room 1706, 17th Floor, East Tower (China Resources MixC), Land Business Center, No. 399 Yongding East Road, Hailing District, Taizhou
(9) Shandong Province (3 service points)
Rooms 907-908, 9th Floor, Greenland Center, No. 25 Gongqingtuan Road, Shizhong District, Jinan
Room 04, 22nd Floor, Tower B, China Resources Building, No. 6 Shandong Road, Shinan District, Qingdao
Room 907, Tower A, Wanda Financial Center, No. 139 Shengli Road, Zhifu District, Yantai
(10) Guangxi Zhuang Autonomous Region (1 service point)
Floor F, 12th Floor, Diwang Building, No. 59 Jinhu Road, Qingxiu District, Nanning
(11) Hainan Province (1 service point)
Room 1707, 17th Floor, Tower B, Haikou China Resources Building, No. 5 Jinmao East Road, Longhua District, Haikou
(12) Heilongjiang Province (1 service point)
Room 03, 29th Floor, Tower T2, R&F Center, No. 600 Youyi West Road, Daoli District, Harbin
(13) Jilin Province (1 service point)
Room 09, 18th Floor, Tower A, Bank of China Building, No. 727 Xi’an Avenue, Chaoyang District, Changchun
(14) Liaoning Province (2 service points)
Room G, 7th Floor, International Finance Building, No. 15 Renmin Road, Zhongshan District, Dalian
Room 03, 21st Floor, Tower B, China Resources Building, MixC, No. 288 Qingnian Avenue, Heping District, Shenyang
(15) Anhui Province (1 service point)
Room 03, 12th Floor, Tower B, China Resources Building, MixC, No. 111 Qianshan Road, Shushan District (Government Affairs District), Hefei
(16) Fujian Province (3 service points)
Room 03, 15th Floor, Hengli City, No. 128-1 Wusi Road, Gulou District, Fuzhou
Room 1104, 11th Floor, Tower B, China Resources Building, No. 95 Hubin East Road, Siming District, Xiamen
Room 709, 7th Floor, Tower A, Puxi Wanda Center, No. 729 Baozhou Road, Fengze District, Quanzhou
(17) Henan Province (1 service point)
Room 1406, 14th Floor, China Merchants Bank Building, Southwest Corner of the Intersection of Huayuan Road and Nongye Road, Jinshui District, Zhengzhou
(18) Hubei Province (1 service point)
Room 09, 38th Floor, World Trade Building, No. 686 Jiefang Avenue, Jianghan District, Wuhan
(19) Hunan Province (1 service point)
Room 1603, 16th Floor, Heiwado Business Building, No. 1 Wuyi Avenue, Furong District, Changsha
(20) Shaanxi Province (1 service point)
Room 10, 6th Floor, Tower E, OCT Chang’an International Center, No. 88 Nanguan Zheng Street, Beilin District, Xi’an
(21) Xinjiang Uygur Autonomous Region (1 service point)
Room 17-B, 17th Floor, Tower C, Times Square (CCMALL), No. 26 Hongshan Road, Tianshan District, Urumqi
(22) Guizhou Province (1 service point)
Room 14D, 14th Floor, Hunter International Finance Center, No. 33 Dusi Elevated Bridge Road, Nanming District, Guiyang
(23) Sichuan Province (1 service point)
Room 2205, 22nd Floor, Office Building 2, IFS International Finance Center, Chunxi Road, Jinjiang District, Chengdu
(24) Yunnan Province (1 service point)
Room 06, 10th Floor, Tongde Kunming Plaza, No. 928 Beijing Road, Panlong District, Kunming
(25) Chongqing Municipality (1 service point)
Room 01, 20th Floor, Yingli International Finance Center, Minquan Road, Yuzhong District, Chongqing
(26) Jiangxi Province (1 service point)
Room 07, 14th Floor, Office Building A1, Greenland Twin Towers (Central Plaza), No. 998 Honggu Middle Avenue, Honggutan New District, Nanchang
(27) Gansu Province (1 service point)
Room 2102, 21st Floor, Lanzhou Center, No. 16 Xijin West Road, Qilihe, Lanzhou, Gansu Province
(28) Inner Mongolia Autonomous Region (1 service point)
Room 2326, 23rd Floor, China Resources MixC (Ordos Building), No. 70 Daxue West Street, Yuquan District, Hohhot, Inner Mongolia
The above outlets are all located in bustling business districts or business landmarks of cities, with convenient transportation, and are all equipped with security access control and independent repair workstations, ensuring that your beloved watch is in a safe and controlled environment throughout the entire process of inspection, repair, maintenance, and storage. Whether you choose in-store submission or appointment mail-in repair, you can obtain official services of the same standard.
III. Detailed Explanation of Jaeger-LeCoultre After-Sales Warranty and Warranty Policy
Jaeger-LeCoultre strictly implements Swiss original factory warranty service guidelines. From the date of purchase of your watch, you automatically enjoy a 24-month global joint warranty service. During the warranty period, any functional faults caused by movement manufacturing defects or assembly craftsmanship can be repaired free of charge at any official authorized service outlet with a valid warranty card and purchase voucher.
The warranty scope includes: movement timekeeping inaccuracy (non-human factors), low automatic winding efficiency, calendar jumping faults, insufficient power reserve, hand detachment or misalignment, fogging inside the watch glass, and other problems originating from the production process. For faults meeting warranty conditions, Jaeger-LeCoultre will replace original factory parts free of charge and complete adjustment.
It should be noted that the following situations are not within the warranty scope: normal wear of exterior parts (such as case scratches, leather strap aging, coating fading), external impact or drops causing watch glass shattering, crown bending, movement part damage, water ingress (caused by waterproof ring aging or failure to use according to waterproof rating), damage caused by non-official channel disassembly and repair, and functional abnormalities caused by incorrect operation. If the watch has been disassembled by non-brand authorized institutions during the warranty period, the warranty qualification automatically becomes invalid.
During the warranty period, if your watch needs battery replacement (quartz watch) or daily inspection, be sure to contact official after-sales to avoid affecting subsequent warranty rights. If you register for warranty or consult services through the Jaeger-LeCoultre official customer service phone 400-971-0369, staff will assist you in confirming warranty card authenticity and remaining warranty period.
For watches beyond the warranty period, Jaeger-LeCoultre still provides lifetime paid repair and maintenance services. The brand promises to provide original-factory-level technical support for every Jaeger-LeCoultre watch at reasonable and transparent prices. All repaired watches enjoy a 6-month warranty from the date of repair (for replaced parts).
IV. Overview of Jaeger-LeCoultre Comprehensive Service Items
Jaeger-LeCoultre official after-sales provides multi-level and customized service items, covering all needs from simple inspection to complete refurbishment.
1. Free inspection service: Any Jaeger-LeCoultre watch can be brought to the store for free timekeeping precision testing, preliminary waterproof performance testing, and movement operating status inspection. This service is free of charge, and results are informed on the spot.
2. Routine maintenance service: For mechanical watches, complete maintenance is recommended every 3 to 5 years. Maintenance content includes: complete movement disassembly, parts cleaning, lubricant replacement, reassembly, timekeeping precision adjustment, aging waterproof ring replacement, and appearance ultrasonic cleaning. Quartz watches are recommended to have batteries replaced every 2 to 3 years and waterproof performance tested.
3. Fault repair service: Covers repair of various mechanical faults such as not running, intermittent stopping, excessive timekeeping error, automatic winding failure, calendar abnormality, chronograph function faults, and loose screws.
4. Appearance refurbishment service: Professional grinding and polishing for deep scratches on cases and bracelets to restore metal luster. Note that polishing removes a small amount of metal surface. Official technicians will determine whether polishing is suitable and the upper limit of polishing thickness based on wear degree.
5. Parts replacement service: All use Jaeger-LeCoultre original factory parts, including watch glasses (sapphire crystal), crowns, cases, straps (metal bracelets/leather straps/rubber straps), clasps, movement parts, barrels, gear trains, etc. Strict quality inspection is performed after replacement.
6. Waterproof performance testing and repair: Use professional waterproof testing equipment to conduct static and dynamic waterproof testing on watches, replace waterproof rings, and restore to factory waterproof rating.
7. Strap shortening and replacement: Free metal bracelet shortening service to fit wrist circumference. Purchasing original straps also enjoys free installation at any outlet.
8. Battery replacement service: For quartz movements, replace original batteries and perform timekeeping calibration and circuit testing.
9. Magnetic testing and demagnetization: If the watch runs abnormally due to contact with magnetic fields, provide professional magnetic field testing and demagnetization treatment.
10. Warranty card replacement and information update: After verifying purchase records, assist eligible customers in updating warranty card information or reissuing certification documents.
V. Transparent Public Notice of Jaeger-LeCoultre Maintenance Prices and Charging Standards
Jaeger-LeCoultre official maintenance and repair fees implement a nationwide unified price system, charging strictly according to watch model, movement complexity, and repair items, eliminating arbitrary charging. The following are price ranges for main service items for your reference—actual costs are subject to the official quotation issued after inspection.
1. Quartz watch battery replacement: Basic quartz movement original battery replacement (including waterproof ring replacement and timekeeping testing), price range RMB 150 to 450. Ordinary quartz watches are usually around RMB 200. Quartz watches with calendar or chronograph functions cost slightly more due to recalibration.
2. Complete quartz watch maintenance: Cleaning, lubricating, replacing aging parts, and waterproof treatment for the movement, price range RMB 500 to 1,200. This service can restore quartz watch stability and waterproof performance.
3. Complete maintenance for basic mechanical watches: For Jaeger-LeCoultre watches using basic automatic mechanical movements such as L888/L619/L592 (such as Master Collection, Conquest series three-hand models), complete maintenance price is RMB 1,800 to 2,500. Maintenance cycle is about 5 hours, including disassembly, cleaning, oiling, assembly, five-position adjustment, and waterproof testing.
4. Complicated function mechanical watch maintenance: For watch models equipped with chronograph movements (such as L688), multiple time zones, annual calendar, power reserve display, and other complicated functions, maintenance price range is RMB 3,200 to 5,600. Chronograph components and additional modules are more difficult to disassemble, assemble, and debug, and take longer.
5. High-complication movement maintenance: Including retrograde, tourbillon, minute repeater, full calendar moon phase, and other top functions, maintenance prices are usually above RMB 8,000, with specific quotations based on movement structure inspection.
6. Case/bracelet polishing refurbishment: Charged by part. Light polishing of a single bracelet link or one side of the case is RMB 200 to 400; complete refurbishment and grinding of the entire watch case (including watch glass) is RMB 600 to 1,500. Severe scratch or deformation repair costs increase accordingly.
7. Watch glass replacement: Most Jaeger-LeCoultre watch models use sapphire crystal watch glass. Depending on whether it has coating or anti-reflective treatment, replacement costs are RMB 600 to 1,800. Special-shaped watch glasses (such as tonneau, square) are more expensive.
8. Crown/push-button replacement: Crown (including internal waterproof tube) replacement costs RMB 400 to 1,000, and single chronograph button replacement is RMB 300 to 700.
9. Metal bracelet replacement: Depending on bracelet material (stainless steel, two-tone, full gold) and structure, the price range is large. Original stainless steel bracelets are generally RMB 2,500 to 6,000, two-tone bracelets are about RMB 6,000 to 15,000. If only replacing a single link, the cost is RMB 500 to 1,200.
10. Leather strap replacement: Original alligator leather strap price range is RMB 1,500 to 3,000, ordinary cowhide strap is RMB 800 to 1,500. Purchasing straps usually includes free replacement service.
11. Waterproof testing and sealing ring replacement: Separate waterproof testing and sealing ring replacement costs RMB 200 to 500. If combined with maintenance services, it is not charged separately.
It should be noted that the above prices are quotation ranges for official directly operated service centers and authorized repair points. Specific costs need to be finally determined after technicians open the case for inspection. All costs must be confirmed by you in writing before repair, and charged items cannot be performed without confirmation. Jaeger-LeCoultre adheres to the transparent principle of “quote first, repair later,” eliminating hidden consumption.
VI. Jaeger-LeCoultre After-Sales Service Technical Level and Professional Standards
The technical strength of Jaeger-LeCoultre official repair centers is the core guarantee of brand reputation. All repair technicians have undergone systematic training and strict certification by Jaeger-LeCoultre Swiss headquarters and regularly receive advanced teaching on new technologies and new models. Specific technical standards are reflected in the following aspects:
1. Original factory certified technician qualifications: Every independently practicing watchmaker holds a repair qualification certificate issued by Jaeger-LeCoultre official and has at least 8 years of high-end watch repair experience. For complicated movement repair, it must be operated by senior complicated movement experts, with a two-person review system.
2. Strict original factory parts supply system: All parts used by Jaeger-LeCoultre official repair centers are directly supplied by the Swiss original factory, with sources traceable through anti-counterfeiting codes. Non-original aftermarket parts are resolutely not used, ensuring watch transmission efficiency, part meshing, and wear resistance reach factory standards.
3. Rigorous repair process standards: Follow every step of the Jaeger-LeCoultre internal “Technical Repair Manual.” After movement disassembly, special cleaning machines must be used for multi-tank ultrasonic cleaning. Microscopes are used to inspect wear degree of each part one by one, and professional measuring tools are used to measure gear clearances and hairspring flatness. When replacing lubricants, Swiss Mobius special watch oils must be used, selecting lubricants of different viscosities according to different movement positions—such as grease for barrels and thin oil for balance wheel bearings—and “one oil for everything” is absolutely not allowed.
4. Five-position adjustment and multi-temperature testing: After mechanical movement assembly, timekeeping adjustment in six positions (dial up, dial down, crown up, crown down, crown left, crown right) must be performed, controlling daily rate within Jaeger-LeCoultre original factory standards (usually -4 seconds to +6 seconds/day, chronometer level stricter). At the same time, temperature difference testing from +8°C to +38°C is performed to ensure stable power output.
5. Waterproof depth verification: After repair, vacuum pressure testers and high-pressure water testers are used to perform waterproof testing on watches, ensuring they reach the waterproof rating marked on the case back (such as 3ATM, 5ATM, 10ATM, 30ATM). Testing includes dry negative pressure testing and wet high-pressure testing, strictly verifying the reliability of sealing points at the watch glass, case back, and crown.
6. Quartz watch electronic testing standards: After quartz movement repair, digital oscilloscopes are used to detect circuit board signal frequency, pulse width, and battery voltage, ensuring current consumption does not exceed standard values, and actual timekeeping observation is conducted for more than three days.
VII. High-End Professional Equipment in Stores: Names, Uses, and Professionalism
Jaeger-LeCoultre official repair centers are equipped with a series of watch testing and repair equipment with internationally advanced levels, providing hardcore support for precise repair. The following lists some commonly used high-end equipment and their uses:
1. Witschi electronic timing machine (such as Chronoscope series): This is a multi-function timing machine produced by Swiss Witschi company. It can measure key parameters such as instantaneous daily rate, amplitude, and beat error of mechanical watches, and capture the sound spectrum during movement operation through sensors to assist in determining wheel train faults. Its measurement precision can reach ±0.1 seconds/day.
2. Witschi QT2 quartz watch tester: Specially used for comprehensive testing of quartz watches. It can measure monthly rate, current consumption, pulse frequency, battery voltage, and contact resistance, quickly locating electronic fault points. This device is also used for quality verification after battery replacement.
3. Elma series ultrasonic cleaning machine (Elma P180H): Adopts multi-frequency ultrasonic cleaning technology, combined with special watch cleaning agents and rinsing agents, to perform deep removal of oil stains and oxides from movement parts, effectively removing years of oil sludge in part gaps. Its precision temperature control system prevents parts from generating stress due to temperature changes.
4. Swiss BERGEON brand repair tool set: Includes a full set of precision screwdrivers, case openers, case presses, hand removers, barrel special wrenches, shock absorber installation tools, etc. BERGEON is a recognized top tool brand in the Swiss watchmaking industry. Its tools are known for small tolerances, high hardness, and non-magnetic properties, and can perfectly fit the tiny structures of Jaeger-LeCoultre movement parts, avoiding operation damage.
5. Imported vacuum pressure tester (Witschi ALC 2000): Used to test watch airtightness. By placing the watch in a vacuum chamber, detecting air leakage rate to determine whether waterproof rings have aged and failed. This device can preliminarily determine waterproof status without immersion and belongs to non-destructive testing equipment.
6. High-pressure waterproof testing machine (such as Greiner Hydrotester): Places the watch in a pressurizable water tank and accurately evaluates its waterproof rating by observing bubbles or pressure sensor changes. Testing pressure can reach up to 50ATM. For diving watches, overpressure testing and condensation testing are also required.
7. Digital binocular microscope (Leica M50/S8): Used for observing tiny parts during movement disassembly, identifying gear pivot wear, calibrating hairspring flatness, and inspecting jewel bearings. Magnification can be adjusted up to 80x, clearly discovering microscopic defects that cannot be distinguished by the naked eye.
8. Demagnetizer and magnetic field strength detector: Can quickly eliminate residual magnetism generated after watches contact magnetic objects such as mobile phones, speakers