The Hamilton caliber H-13 (aka H13) is a Swiss made automatic movement with a date at 3:00 and power reserve indicator at 9:00. This movement is based on the ETA caliber C07.671 (which is based on the ETA 2824-2), but with a Hamilton branded rotor. It has 25 jewels and a beat rate of 21,600bph (3Hz). The H-13 is a Powermatic 80 family movement with a power reserve of up to 80 hours on a full wind.
The calibre H-13 can be found in the Hamilton Jazzmaster Power Reserve Auto (ref: H32635781, H32635731, H32635541, H32635122, H32635131, H32635622, H32635521).
In Hamilton’s own words:
“For the Jazzmaster Power Reserve, Hamilton created the new H-13 movement with extended 80 hour power reserve, which is displayed on the dial through the power reserve indicator. The movement is tastefully decorated and visible through the see-through case back.”
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Note: This caliber listing is still being updated, but feel free to start discussions on it in the comments below…
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