Watch Marketing And Maintenance

The complete guide to Swiss ETA SA — its history from 1793, the Quartz Revolution, the legendary Three Treasures (2824, 2892, 7750), and the supply restriction policy that reshaped the global watch industry.

A complete guide to authenticating luxury watches — 11 expert authentication points covering logo, crystal, weight, crown, caseback, dial, serial number, bracelet, hands, movement, and hallmarks.

A comprehensive guide to essential watchmaking technical knowledge — gear transmission ratios, electrical units, magnetism, electromagnetics, tolerances and fits, geometric tolerances, and heat treatment.