The Timepiece Journal

Expert answers to every common question about Swiss ETA movements — what ETA SA is, the Three Treasures (2824, 2892, 7750), supply restrictions, and whether an ETA movement means lower quality.

Expert answers to the most common questions about spotting fake watches — logo inspection, crystal testing, weight, crown, caseback, serial numbers, bracelet, hands, movement frequency, and finishing.

Authoritative answers to the most common technical questions about watchmaking — gear ratios, electrical units, magnetism, battery voltage, tolerances and fits, and heat treatment.