Crescent
Waltham was a recognised pioneer in precision chronometry instruments from the early days of the railway and supplied most railway companies in North America and India.
The case, in 18kt white, yellow or rose gold, measures 43mm. It has an AR-coated sapphire crystal and it is water resistant to 30 meters.
Movement is the Swiss automatic La Joux-Perret caliber 3513 which is COSC-certified as a chronometer and features a 22kt white gold rotor. Complications include big date and power reserve indicator. Dials can be had in white or black, and the crown features a blue cabochon.
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