INSTANTANEOUS - ACTION CALENDAR DEVICE

摘要

INSTANTANEOUS-ACTION CALENDAR DEVICE The herein-proposed instantaneous-action calendar device is made use of in small-size wrist watches and comprises a stationary fixed component, a date ring, a day indicator, a rotary actuator, an accumulator and jumpers. The rotary actuator is adapted to interact with the date ring and the day indicator. The accumulator is made up by a spring, a tappet and coaxially arranged a day wheel and a cam. The accumulator cam is locked in position on the stationary fixed component of the device, while the tappet and the spring arc located on the rotary actuator.