Two time zone device for a timepiece movement

Abstract

A device applied to a mechanical timepiece movement whether it be hand-wound or automatically wound for measuring two time zones using two twelve-hour hands in which a three-position crown is used to wind, jump the date disc in one-day increments, jump the second time zone hour hand forwards or backwards in one-hour increments, and set the time. In particular, the invention proposes a device for synchronizing the time keeping between both twelve-hour hands and allowing the second time zone hour hand to be independently jumped in one-hour increments without affecting the time measured on the other hands from a single time setting device.

Dependencies are inferred from the claim text.