A specialist watchmaker analyses the reason for which the watch has been submitted for maintenance and identifies the watch from its unique serial number.
Disassembly of the case and its components (glass, back, bezel, various seals, etc.) and separation of the movement.
Full part-by-part disassembly of the movement.
Polishing of the case to restore the original lustre to a watch which has been worn for some time.
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.
These containers are in turn placed in specific baths inside an ultrasonic cleaning machine.
Reassembly of the case and replacement of the necessary components (glass, pushers, tube, seals, etc.).
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.