Watch Marketing And Maintenance

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.

From 17 to 25 jewels — what do watch jewel counts actually mean? This guide covers the history of watch jewels, the 8 types used in movements, their key properties, and the ISO standard that governs how jewels are marked on dials.

Silicone straps, sapphire crystals, enamel dials, tritium luminescence, and silicon hairsprings — this guide covers the full range of specialty materials used in modern watchmaking, from the strap to the movement.