Waltham Aircraft Clocks

The Waltham Watch Company (1850-1957) had been making Aircraft clocks since the early days of Aviation,with a modified size 37 movement came the first XP Aircraft Clock around 1914.They continued to produce Aircraft clocks in their Waltham MA factory until 1957 when they shut their doors for good.The A13 line was sold off and it's still being produced today.