Watch Marketing And Maintenance » watch repair

Every watch movement contains 20 to 40 screws, each with a specific purpose. This guide covers the 9 types of watch screws, left-hand threads, blued vs satin finishing, how screw slots reveal service history, and why screw length errors can destroy a movement.

A complete guide to watch repair professional standards — professional ethics, the Three-Guarantee consumer protection policy, Quality Law obligations, performance fault definitions, and the full watch inspection checklist.