Full service
Mechanical watches that are regularly wound run continuously: 24 hours a day, 7 days a week and 365 days a year. To optimise the reliability and life span of your watch, a full service is recommended every six to eight years.
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Diagnostic
A specialist watchmaker analyses the reason for which the watch has been submitted for maintenance and identifies the watch from its unique serial number.
Case disassembly
Disassembly of the case and its components (glass, back, bezel, various seals, etc.) and separation of the movement.
Movement disassembly
Full part-by-part disassembly of the movement.
Case polishing
Polishing of the case to restore the original lustre to a watch which has been worn for some time.
Case cleaning
Cleaning of the case in special baths used for ultrasound treatment.
Preparing the components of the movement for cleaning
Each component of the disassembled movement is placed in containers specific to small watch parts.
Movement cleaning
These containers are in turn placed in specific baths inside an ultrasonic cleaning machine.
Case reassembly
Reassembly of the case and replacement of the necessary components (glass, pushers, tube, seals, etc.).
Movement reassembly
Reassembly and oiling of movement to Longines specifications.
Installation of case and movement
Assembly of movement (including dial and hands) in the case and complete reassembly of the watch
Technical and cosmetic checks
Final technical (precision, power reserve, water resistance) and cosmetic checks on the watch, according to Longines specifications.
Partial service
Improving the accuracy of a mechanical watch by replacing watch components ensures water resistance of the watch.
Diagnostic
A specialist watchmaker analyses the reason for which the watch has been submitted for maintenance and identifies the watch from its unique serial number.
Disassembling the case and the movement
Opening of the case and disassembly of its components (glass, back, bezel, various seals, etc.) and separation of the movement.
Cleaning the case
Cleaning of the case by immersion in special products which enable ultrasound treatment.
Assembling the case and the movement
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Technical and aesthetical final control
Final check with inspection of technical functions and aesthetic appearance, according to Longines specifications.
Restoration
You are the owner of an ancient watch, which means that your timepiece dates back to the 1940s or earlier. Restoring your watch requires two essential ingredients: highly specialized cutting-edge expertise and original components. The specialized watchmaker restores the original condition of worn components and in certain cases, refabricates missing parts by hand.
Longines offers you an irreproachable quality of service always closer to you. Discover all the services!
Diagnostic
A specialist watchmaker conducts a detailed, full examination to establish the nature of the tasks to be performed and identifies the watch model from its unique serial number.
Case and movement disassembly
Disassembly of the case and its components (glass, back, bezel, seals, etc.) and separation of the movement from the case.
Polishing
Polishing of the case to the original specifications, taking the age of the watch into consideration.
Case cleaning
Cleaning of the case by immersion in special baths used for ultrasound treatment.
Movement cleaning
Deep cleaning of all the components of the disassembled movement, using ultrasound and specific baths. During this process, the washing basket rotates slowly as it is lowered.
Verification of components
Examination of each component to establish whether signs of deterioration are present. Where applicable, repair or replace components.
Part taken from stock
A new part is taken from stock as a replacement for a part which has been identified as defective.
Adjustment of the part
Adjustment of the part according to requirements. In this case, adjustment of the wheel on the pivoting tool.
Movement reassembly
Assembly and oiling of movement to Longines specifications.
Installation
Fitting the movement, complete with its dial and hands, inside the case and securing it in place.
Testing
Testing the precision of the watch using a measurement and calibration device and adjustment to Longines specifications.
“Before and after” comparison
Comparison of the watch upon arrival at the Longines workshops and after restoration.
Discover all our services
Know how
Refining various watchmaking processes for almost two centuries, Longines is proud to provide technical expertise combining craftsmanship and technology.
Warranty
See what's included in your Longines international warranty.
Care instructions
Recommendations to help you preserve your Longines watch over the years.
Find a service center
Make sure you drop your watch off at an authorised service center using our online store locator.
Contact us
You have a question about our products or services? We are here to help.
