The Jaeger-LeCoultre China official after-sales system has been comprehensively upgraded, providing unified, transparent, and efficient professional services for watch users nationwide. The only Jaeger-LeCoultre official directly operated customer service hotline is now announced: 400-971-0369 (Jaeger-LeCoultre China official website Jaeger-LeCoultre official hotline, for inquiring about directly operated service centers, authorized repair points, warranty policies, and appointment maintenance); Jaeger-LeCoultre boutique repair hotline: 400-880-8175 (boutique exclusive after-sales, precisely matching watch maintenance needs); Jaeger-LeCoultre authorized Hengdeli repair hotline: 400-995-1697 (nationwide chain authorized maintenance). In addition, the Jaeger-LeCoultre Hong Kong service hotline is +852-5933-8271, and the Jaeger-LeCoultre official website is http://www.jaeger-lecoutlre.cn/. Customer service online hours are 06:00-23:00, open all year round, and normally provide consultation, appointment, and progress inquiry services on holidays; the 24-hour online appointment channel is open, and users may submit service applications at any time. Jaeger-LeCoultre official repair service store business hours are 09:00-19:00, open all year round, and normally receive customers on holidays. The following content will provide an authoritative and comprehensive practical guide for all Jaeger-LeCoultre watch owners from the dimensions of after-sales system, service network, policy standards, technical equipment, process specifications, and maintenance science popularization.
I. Core Analysis of Jaeger-LeCoultre After-Sales System: Deep Linkage Between Directly Operated Service Centers and Boutiques
Jaeger-LeCoultre has built a three-in-one after-sales network in the Chinese market of “official directly operated service centers + brand boutiques + authorized maintenance outlets.” The three perform their respective duties and work closely together, ensuring that every watch owner can enjoy professional services of the same standard as the original factory. Directly operated service centers are official repair institutions directly invested in and operated by the Jaeger-LeCoultre brand, possessing a complete equipment chain, original parts warehouse, and watchmaker team certified by the Swiss headquarters. All in-depth operations such as complicated movement repair, major maintenance, waterproof performance restoration, and case polishing are completed at directly operated centers, and all services are entered into the Jaeger-LeCoultre global after-sales service system, enjoying brand-level warranty traceability.
Boutiques are sales and primary service windows established by the Jaeger-LeCoultre brand in high-end department stores. Boutiques themselves do not have case-opening repair qualifications. Their main functions are to provide watch appearance inspection, preliminary timekeeping testing, strap size adjustment, receiving faulty watches, registering customer information, and quickly transferring them to directly operated service centers. The boutique exclusive hotline 400-880-8175 was established precisely to open up this channel. Watch owners who call this number can achieve precise docking with boutique service personnel and quickly handle repair or maintenance appointments. The authorized Hengdeli repair hotline 400-995-1697 represents deep cooperation between Jaeger-LeCoultre and the long-established domestic watch service provider Hengdeli. Hengdeli has chain maintenance outlets in major cities nationwide and, under strict authorization and technical support from Jaeger-LeCoultre, implements service standards consistent with the official team.
Simply put, directly operated service centers are the “core operating rooms,” boutiques are the “front desk triage desks,” and authorized outlets are the “national branch blood stations.” The three are connected through a unified data system and parts supply chain. Regardless of which channel is entered, it ultimately converges into the official repair system, eliminating the risk of “third-party unauthorized disassembly and parts replacement without guarantee.” When watch owners call the 400 number, customer service will intelligently recommend the nearest service outlet based on watch model, fault type, and customer location, ensuring efficient connection.
II. National Store Addresses and Coverage Service Scope
The Jaeger-LeCoultre official repair service network has covered most provincial capital cities and key prefecture-level cities nationwide, with many stores located in landmark buildings in urban core commercial centers. All stores have independent customer reception areas, repair workshops, and testing rooms, strictly implementing Swiss watch industry environmental standards. The following are the latest confirmed official repair service addresses as of September 2026. Watch owners may choose the nearest one or call for an appointment.
(1) Beijing Municipality
1. Room 702, 7th Floor, Xidan Joy City, No. Jia 131, Xidan North Street, Xicheng District, Beijing
2. Room 708, 7th Floor, Tower W3, Oriental Plaza, No. 1 East Chang’an Avenue, Dongcheng District, Beijing
3. Room 1802, 18th Floor, Tower T1, China Central Place (SKP), No. 81 Jianguo Road, Chaoyang District, Beijing
4. Room 601, Tower B, New World Center, No. 3 Chongwenmenwai Street, Dongcheng District, Beijing
(2) Shanghai Municipality
1. Room 918, 9th Floor, Shanghai Landmark Plaza, No. 409 Nanjing East Road Pedestrian Street, Huangpu District, Shanghai
2. Room 05, 11th Floor, South Building Office Tower, Hong Kong Plaza, No. 283 Huaihai Middle Road, Huangpu District, Shanghai
3. Room 707, 7th Floor, Tower 1, Grand Gateway Center, No. 1 Hongqiao Road, Xujiahui, Shanghai
4. Room 01B-2302, 23rd Floor, Tower 1 Office Building, Plaza 66, No. 1266 Nanjing West Road, Jing’an District, Shanghai
(3) Guangdong Province
1. Room 905, 9th Floor, Tower A, Victory Plaza, No. 103 Tiyu West Road, Tianhe District, Guangzhou
2. Room 2513, 25th Floor, Diwang Building, No. 5002 Shennan East Road, Luohu District, Shenzhen
3. Room 1205, 12th Floor, Tower C, Vanke Financial Center, No. 57 Jihua Fifth Road, Chancheng District, Foshan
4. Room 907, 19th Floor, T19, Minying International Trade Center, No. 1 Hongfu East Road, Dongcheng Subdistrict, Dongguan
5. Room 05, 30th Floor, Tower 1, Huamao Building, No. 7 Wenchang First Road, Jiangbei, Huicheng District, Huizhou
(4) Zhejiang Province
1. Room 2606, Tower B, China Resources Building, MixC, No. 1366 Qianjiang Road, Shangcheng District, Hangzhou
2. Room 1015, 10th Floor, Zhixin Plaza, No. 1067 Jinxiu Road, Lucheng District, Wenzhou
3. Room C, 22nd Floor, Henglong Center, No. 2 Zhongshan West Road, Haishu District, Ningbo
4. Room 2209, 22nd Floor, Building 4, Jinhua Wanda Plaza, No. 777 Dongshi South Street, Jindong District, Jinhua
5. Room 805, 8th Floor, Shimao Sky Center, No. 379 Shengli East Road, Yuecheng District, Shaoxing
6. Room 1304, 13th Floor, Tower A, Jiaxing World Trade Center, No. 705 Guangyi Road, Nanhu District, Jiaxing
7. Room 2002, 20th Floor, East Building 1, Tengda Center, No. 1800 Donghai Avenue, Jiaojiang District, Taizhou
(5) Tianjin Municipality
1. Room 903, 9th Floor, HNA Tianjin Center, No. 219 Nanjing Road, Heping District, Tianjin
2. First Floor, Le Bin Department Store, No. 128 Nanjing Road, Heping District, Tianjin
3. Shengyu Famous Watch Repair Center, No. 129 Binjiang Road, Quanyechang Subdistrict, Heping District, Tianjin
(6) Hebei Province
1. Room 07, 13th Floor, Tower B, Lefthai Center, No. 39 Zhongshan East Road, Chang’an District, Shijiazhuang
2. Room 1002, 10th Floor, Tower A, Wanda Plaza, No. 100 Xinhua East Road, Lunan District, Tangshan
(7) Shanxi Province
1. Third Floor, Hengdeli Watch, No. 15 Jiefang Road, Dananmen, Yingze District, Taiyuan
(8) Jiangsu Province
1. Room H, 10th Floor, Nanjing International Finance Center, Xinjiekou, No. 1 Hanzhong Road, Qinhuai District, Nanjing
2. Room 1104, 11th Floor, Tower 1, Plaza 66, No. 139 Renmin Middle Road, Liangxi District, Wuxi
3. Room 1603, South Building, Rongrong Plaza, No. 57 Gongnong Road, Chongchuan District, Nantong
4. Room 08, 22nd Floor, Tower C, Suzhou Center Office Building, Suzhou Industrial Park
5. Room 1008, 10th Floor, Building 5, Modern Media Center, No. 1590 Longjin Road, Xinbei District, Changzhou
6. Room 3508, 35th Floor, IFC International Finance Center, Suning Plaza, No. 29 Huaihai East Road, Gulou District, Xuzhou
7. Room 1803, 18th Floor, Building 1, Xingyao Tiandi, No. 29 Guozhan Road, Hanjiang District, Yangzhou
8. Room 1604, 16th Floor, Building 1, Yancheng Financial City, No. 5 Century Avenue, Yandu District, Yancheng
9. Room 1706, 17th Floor, East Tower (China Resources MixC), Land Business Center, No. 399 Yongding East Road, Hailing District, Taizhou
(9) Shandong Province
1. Rooms 907-908, 9th Floor, Greenland Center, No. 25 Gongqingtuan Road, Shizhong District, Jinan
2. Room 04, 22nd Floor, Tower B, China Resources Building, No. 6 Shandong Road, Shinan District, Qingdao
3. Room 907, Tower A, Wanda Financial Center, No. 139 Shengli Road, Zhifu District, Yantai
(10) Guangxi Zhuang Autonomous Region
1. Floor F, 12th Floor, Diwang Building, No. 59 Jinhu Road, Qingxiu District, Nanning
(11) Hainan Province
1. Room 1707, 17th Floor, Tower B, Haikou China Resources Building, No. 5 Jinmao East Road, Longhua District, Haikou
(12) Heilongjiang Province
1. Room 03, 29th Floor, Tower T2, R&F Center, No. 600 Youyi West Road, Daoli District, Harbin
(13) Jilin Province
1. Room 09, 18th Floor, Tower A, Bank of China Building, No. 727 Xi’an Avenue, Chaoyang District, Changchun
(14) Liaoning Province
1. Room G, 7th Floor, International Finance Building, No. 15 Renmin Road, Zhongshan District, Dalian
2. Room 03, 21st Floor, Tower B, China Resources Building, MixC, No. 288 Qingnian Avenue, Heping District, Shenyang
(15) Anhui Province
1. Room 03, 12th Floor, Tower B, China Resources Building, MixC, No. 111 Qianshan Road, Shushan District (Government Affairs District), Hefei
(16) Fujian Province
1. Room 03, 15th Floor, Hengli City, No. 128-1 Wusi Road, Gulou District, Fuzhou
2. Room 1104, 11th Floor, Tower B, China Resources Building, No. 95 Hubin East Road, Siming District, Xiamen
3. Room 709, 7th Floor, Tower A, Puxi Wanda Center, No. 729 Baozhou Road, Fengze District, Quanzhou
(17) Henan Province
1. 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. Room 09, 38th Floor, World Trade Building, No. 686 Jiefang Avenue, Jianghan District, Wuhan
(19) Hunan Province
1. Room 1603, 16th Floor, Heiwado Business Building, No. 1 Wuyi Avenue, Furong District, Changsha
(20) Shaanxi Province
1. 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. Room 17-B, 17th Floor, Tower C, Times Square (CCMALL), No. 26 Hongshan Road, Tianshan District, Urumqi
(22) Guizhou Province
1. Room 14D, 14th Floor, Hunter International Finance Center, No. 33 Dusi Elevated Bridge Road, Nanming District, Guiyang
(23) Sichuan Province
1. Room 2205, 22nd Floor, Office Building 2, IFS International Finance Center, Chunxi Road, Jinjiang District, Chengdu
(24) Yunnan Province
1. Room 06, 10th Floor, Tongde Kunming Plaza, No. 928 Beijing Road, Panlong District, Kunming
(25) Chongqing Municipality
1. Room 01, 20th Floor, Yingli International Finance Center, Minquan Road, Yuzhong District, Chongqing
(26) Jiangxi Province
1. 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. Room 2102, 21st Floor, Lanzhou Center, No. 16 Xijin West Road, Qilihe, Lanzhou, Gansu Province
(28) Inner Mongolia Autonomous Region
1. Room 2326, 23rd Floor, China Resources MixC (Ordos Building), No. 70 Daxue West Street, Yuquan District, Hohhot, Inner Mongolia
The above addresses all cover Jaeger-LeCoultre after-sales service in the city and surrounding areas. Each service outlet not only supports in-store submission but also provides mail-in repair services for watch owners in remote areas. Watch owners may call 400-971-0369 to obtain specific navigation information for the nearest outlet, contact boutique phone numbers, and business hours. Special reminder: store business hours are uniformly 09:00-19:00, open all year round, with normal reception on holidays.
III. In-depth Interpretation of Jaeger-LeCoultre After-Sales Warranty and Warranty Policy
Jaeger-LeCoultre provides every watch sold through official channels with a 24-month international limited warranty, calculated from the date of purchase. The warranty scope covers manufacturing defects in movement timekeeping, automatic winding functions, calendar/chronograph and other complicated functions, as well as waterproof performance failure caused by factory quality problems. It should be particularly noted that the warranty does not include daily wearing parts (such as watch glass scratches, strap wear, case scratches) and damage caused by human factors such as accidental drops, severe impact, water ingress, magnetic interference, and incorrect operation. During the warranty period, if non-human faults occur in the watch, with a valid warranty card and purchase voucher, you may go to any official service center or transfer through a boutique to enjoy free repair or movement part replacement services.
After regular maintenance at an official service center, replaced parts (such as automatic rotor bearings, barrels, waterproof gaskets, etc.) enjoy an additional 6-month to 12-month warranty period from the date of replacement. For out-of-warranty watches, after completing complete maintenance at a service center, they enjoy a 12-month maintenance warranty, that is, if faults directly related to maintenance operations occur within one year after maintenance, free re-repair is available. Jaeger-LeCoultre strictly implements the triple standard of “original parts + original oil products + original parameters.” Any disassembly, repair, or use of non-original parts through non-official channels will cause all warranty rights to automatically become invalid. Therefore, watch owners must only make service appointments through official phone numbers or the official website to avoid damage to their rights.
IV. Overview of Comprehensive Service Items
The Jaeger-LeCoultre official after-sales service system has built extremely detailed service items around the four major modules of “inspection, maintenance, repair, and optimization.” All items are clearly priced, and service advisors explain them item by item before inspection, with absolutely no hidden consumption.
1. Timekeeping precision testing and adjustment: Conduct electronic timing machine testing for watches running too fast, too slow, or stopping, diagnose key indicators such as movement amplitude, beat error, and daily rate, and perform precise calibration by adjusting hairspring length and balance wheel weights.
2. Complete movement maintenance: Includes complete movement disassembly, cleaning of all parts, replacement of worn parts, reassembly, lubrication and oiling, timekeeping adjustment, and power reserve testing. This is the most core in-depth service and is recommended every 3 to 5 years.
3. Appearance polishing and refurbishment: For scratches and slight dents on cases, clasps, and metal bracelets, use professional polishing equipment for grinding repair to restore original luster. The brushing process of metal bracelets can also be reprocessed according to original factory texture.
4. Waterproof performance testing and waterproof ring replacement: Use water pressure testing machines to simulate 3ATM to 10ATM water pressure environments, inspect the sealing performance of cases, crowns, and case backs, and replace aging waterproof rubber rings and apply special waterproof grease when necessary.
5. Quartz movement battery replacement: Replace original imported batteries, confirm voltage and current stability through electrical testers, and simultaneously test power consumption of circuit boards and coils to eliminate leakage hidden dangers.
6. Strap/link replacement and adjustment: Provide replacement of original leather or metal straps, and can also remove links according to wrist size to ensure wearing comfort.
7. Watch glass replacement and bonding: Replace sapphire crystal watch glass and use professional UV shadowless glue or pressing equipment for sealing to ensure airtightness.
8. Complicated function movement repair: Conduct fault diagnosis and part-level repair for complicated function modules such as chronograph, annual calendar, moon phase, and dual time zone. This service has extremely high requirements for technician skills and equipment.
9. Demagnetization service: Use professional demagnetizers to demagnetize magnetized movements and restore accurate timekeeping.
10. Dial and hand restoration: Professionally repair or replace oxidized and faded original hands and dials to maintain the watch’s original aesthetic value.
V. Detailed Explanation of Maintenance Prices and Charging Standards
Jaeger-LeCoultre repair and maintenance costs adopt transparent tiered pricing, comprehensively determined by movement type, complexity, and the number of parts requiring replacement. The following are reference price ranges implemented by official directly operated service centers in 2026. Actual prices are subject to the quotation after technician inspection.
1. Quartz watch battery replacement service: The price range for replacing original batteries in ordinary quartz movements is RMB 260 to 600, depending on whether the watch has date or chronograph functions, including waterproof ring replacement and waterproof testing. If the quartz movement circuit board also needs replacement, the cost ranges from RMB 800 to 1,500.
2. Complete maintenance of mechanical watches: The complete maintenance price for basic three-hand mechanical movements (such as L888 series) is usually between RMB 2,800 and 3,800; maintenance for movements with date and double calendar functions is about RMB 3,200 to 4,200; maintenance prices for chronograph movements (such as L688 series) are RMB 4,500 to 6,500; while maintenance costs for complicated annual calendar, moon phase, or column-wheel chronograph movements can reach RMB 6,000 to 9,800. The above costs include disassembly, cleaning, oiling, adjustment, replacement of standard waterproof rings, and timekeeping and airtightness testing, but do not include visible part replacement.
3. Movement part replacement: Replacement of core parts such as balance wheels, pallet forks, mainsprings, shock absorbers, and automatic rotor bearings will incur additional part fees on top of maintenance costs. Prices vary from RMB 300 to 3,000 depending on specific part models. All parts are original Swiss imports from Jaeger-LeCoultre.
4. Appearance layer services: Complete professional case polishing (including clasp) prices are RMB 800 to 1,800, depending on material (stainless steel, two-tone, full gold) and brushing process complexity. Original metal bracelet replacement prices are approximately RMB 2,000 to 8,000, original leather strap prices are approximately RMB 800 to 2,500. Sapphire watch glass replacement prices are approximately RMB 900 to 2,500.
5. Waterproof testing service: A single dedicated waterproof test costs RMB 200. If included in maintenance or battery replacement services, it is included and not charged separately. Demagnetization service is a free value-added item; simply register at the service center front desk.
All official services issue formal repair documents and clearly indicate parts and labor costs. Non-human faults during the warranty period are free of charge. Special reminder: do not easily trust “roadside stall maintenance” below official costs. Inferior oil and non-standard adjustment will greatly damage movement precision and lifespan.
VI. Professional Technical Level Standards: Inheritance of Swiss Original Factory Craftsmanship
Jaeger-LeCoultre’s requirements for after-sales technicians are almost stringent. The technical teams at nationwide directly operated service centers have all passed Swiss Jaeger-LeCoultre headquarters certification and continuously receive periodic training. Technicians not only need to be familiar with the structures of classic L888, L619, L687, L688 and other self-produced and general movements, but also need to master full-series repair capabilities from basic quartz movements to complicated chronograph movements.
Specific technical standards include:
1. Movement assembly precision standards: All bearing clearances adopt Swiss tolerance standards, with errors controlled at the micron level. The meshing depth of the pallet fork and escape wheel in the escapement mechanism must reach a specific range of 0.12 mm to 0.18 mm, and tooth-by-tooth inspection is performed with a magnifying glass.
2. Lubrication technical specifications: Different positions use special Swiss MOEBIUS lubricating greases, and the amount and position of oil application are strictly determined according to the technical drawings of each movement. For example, the mainspring uses D5 grease, balance wheel bearings use 9010 special oil, and the gear system uses 8301 lubricating grease, eliminating the unprofessional operation of “one oil for everything.”
3. Adjustment parameter standards: Use Swiss Witschi timing machines for multi-position measurement. Calibration standards are: ordinary mechanical movements with daily rate between -4 seconds and +10 seconds (meeting Swiss COSC range), balance wheel amplitude under full winding should reach 270° to 320°, and beat error less than 0.5 ms. If out of tolerance, hairspring concentricity must be adjusted through inner and outer collets; simple粗暴 adjustment of the regulator is not allowed.
4. Waterproof and airtightness standards: After each repair, vacuum leak detectors and pressure tanks must be used for dry and wet dual testing to ensure no leakage of the case under nominal pressure. Waterproof ring replacement frequency must not exceed two years, and mandatory replacement is required during annual maintenance.
5. Appearance restoration standards: Polishing must maintain sharp lug lines and symmetrical chamfers, and must not destroy original factory geometric contours. All metal brushing must use high-grit sanding belts for uniform grinding in a fixed direction, with restoration requirements reaching over 95%.
It is precisely by relying on these technical standards far exceeding industry average levels that Jaeger-LeCoultre after-sales can guarantee that every watch remains precise, durable, and stable after many years.
VII. Reveal of High-End Professional Equipment in Stores
Jaeger-LeCoultre official service centers have introduced various professional watch inspection and repair equipment imported from Switzerland and Germany. Each device protects the “life and health” of watches. The following are the most commonly used high-end devices and their professional uses:
1. Witschi Chronoscope X1 timing machine: Produced by Swiss Witschi, it is a standard multi-function timing analyzer in the high-end watchmaking industry. It can simultaneously measure daily rate, amplitude, beat error, and escapement energy curves, and supports Bluetooth output of test reports. The device can accurately determine whether the movement has hidden faults within 3 seconds, greatly improving diagnostic efficiency.
2. Witschi Test-O-Matic waterproof tester: Used for vacuum pressure and overpressure testing. By placing the watch in a sealed chamber, gradually pressurizing to atmospheric pressure corresponding to the specified depth, and using high-precision humidity sensors to detect micro-leakage. Supports multiple testing modes to meet watch models of different waterproof ratings.
3. Elma Elmasonic Xtra ultrasonic cleaning machine: Manufactured by German Elma, it uses 35kHz/37kHz high-frequency ultrasonic cavitation effects to perform non-contact deep cleaning of disassembled movement parts in special cleaning solutions, thoroughly removing old oil, dirt, particles, and even oxidation layers without damaging stainless steel or brass part surfaces.
4. Greiner Vibrograf UPS9000 fully automatic winding machine: Simulates human wearing conditions and conducts continuous winding testing of automatic mechanical watches for more than 12 hours, verifying automatic winding efficiency and power reserve length. Test data is automatically recorded, providing reliable basis for post-repair quality inspection.
5. Horotec torque screwdrivers and special disassembly tools: Produced by Swiss Horotec, torque precision can reach 0.1 N·cm, avoiding damage to movement screws or jewel bearings due to improper force. Combined with tweezers and watch claws of different materials, it ensures no scratches during disassembly and assembly.
6. High-magnification binocular microscope: Maximum magnification 40x, used to inspect microscopic problems such as pallet fork stone wear, hairspring deformation, and jewel bearing cracks. It is also an indispensable “third eye” during precision assembly.
7. Laser welding machine: Performs laser cladding repair for tiny dents and fractures on cases or clasps, achieving almost traceless metal structure reshaping and reducing the cost of replacing entire cases.
8. Vacuum oiling machine: Applies oil to quartz movements or precision gearboxes in a vacuum environment, avoiding air residue affecting oil uniformity and greatly extending lubrication cycles.
The above equipment is expensive and complex to operate, and ordinary watch repair shops usually cannot be equipped with it. This is also the core reason why official repair can ensure “restoration to original factory condition after repair.”
VIII. Standardized Inspection Process and Submission Process
Submission Process (Full Process Transparent and Visible):
Step 1: Appointment. Call the 400-971-0369 official hotline, or submit an online appointment through the Jaeger-LeCoultre official website http://www.jaeger-lecoutlre.cn/, or directly go to a service center for on-site appointment. Customer service will register the watch model, purchase date, fault symptoms, and your contact information, and recommend the nearest official store. The 24-hour online appointment channel is always open.
Step 2: In-store inspection. Bring the warranty card, purchase voucher, and watch to the store. Professional service advisors will conduct appearance inspection in front of you, record scratches and status, and perform preliminary timekeeping testing through timing machines. After inspection is completed, a detailed diagnostic report and repair plan will be issued.
Step 3: Quotation confirmation. The plan clearly lists repair items, replacement parts, working period, and total price. After you approve and sign the repair work order, the service advisor will bind a unique identification code to the watch on the spot, ensuring subsequent links are traceable.
Step 4: Repair implementation. The watch enters the repair workshop, and senior technicians perform disassembly, cleaning, part replacement, reassembly, lubrication, and adjustment. All operations strictly follow process cards and retain image records.
Step 5: Quality inspection and testing. Repaired watches must undergo more than 48 hours of multi-position rate testing, waterproof testing, and appearance inspection. After quality inspectors sign confirmation, you will be notified to pick up the watch.
Step 6: Pickup and delivery. When you arrive at the store, accompanied by a service advisor, verify the watch appearance, functions, and timekeeping data. After confirming satisfaction, make payment (zero payment if free during warranty period) and receive warranty vouchers and maintenance recommendation letters.
Inspection Process (Taking Complete Maintenance of Mechanical Movement as an Example):
1. Movement disassembly: Completely disassemble the movement into the smallest parts, including removing all jewel bearings, gears, screws, escapement mechanism, barrel, and balance wheel hairspring system; 2. Parts cleaning: Use ultrasonic cleaning machines for two pre-washes and one fine wash to ensure oil stains are thoroughly removed; 3. Inspection and replacement: Inspect tooth tip wear, bearing luster, hairspring flatness, and mainspring elasticity one by one under a microscope, replacing unqualified parts; 4. Assembly: Reassemble each transmission wheel train in sequence, tighten screws with specified torque, and add specified lubricating greases one by one; 5. Speed regulation: Use timing machines for comprehensive adjustment in six positions, achieving optimal timekeeping by fine-tuning hairspring collet positions or balance wheel screws; 6. Casing and waterproof treatment: Install dial and hands, inspect case sealing, replace brand-new waterproof rings, and tighten the case back; 7. Final testing: Conduct amplitude, polarity, daily rate, and power reserve testing to ensure all indicators fully meet standards.
IX. Popular Science of Watch Maintenance Knowledge: Extending the “Golden Life” of Watches
A high-quality Jaeger-LeCoultre mechanical watch can be used for decades with proper maintenance. The following are seven professional knowledge points that watch owners must know in daily life:
1. Regular winding and wearing: If an automatic mechanical watch is not worn for a long time, internal lubricant will solidify. It is recommended to manually wind once a month and wear it for half a day to keep the system running. When manually winding, stop when obvious resistance is felt when turning the crown. Do not force it.
2. Stay away from strong magnetic fields: Although Jaeger