Hamilton H-13

The Hamilton H-13 is a Swiss automatic movement based on the ETA C07.671, part of the Powermatic 80 family. It operates at 21,600 vph with 25 jewels and provides up to 80 hours of power reserve. The movement features a date display at 3:00 and a power reserve indicator at 9:00, with hand-winding capability and a bidirectional rotor. It remains in production and is used in Hamilton Jazzmaster models.