Lockable push chronograph for use in diver's watch, has rotary ring comprising teeth and provided for axially moving non-rotating sleeve to lock plunger head in resting position of sleeve, where recesses are formed on outer diameter of ring

摘要

The chronograph has a rotary ring (3) for axially moving a non-rotating sleeve (4) to lock a plunger head (5) in a resting position of the sleeve. The ring is provided with teeth, and recesses are formed on outer diameter of the ring, where the ring is maintained in place by a shoulder of a tube (2). The sleeve is provided with an anti-rotation device, where internal diameter of the ring corresponds to external diameter of the sleeve. The sleeve is guided by a diagonal bore.