Movement reserves / ETA movement power reserves

Reference

ETA movement power reserves

9 ETA movements, from the Powermatic 80 (80 hours) to the ETA 2836-2 (38 hours).

MovementWindingReserve
Powermatic 80 Review
Tissot PRX, Tissot Gentleman, Tissot Seastar
Automatic80h
Tissot Swissmatic Review
Tissot Swissmatic, Tissot Everytime Swissmatic, Gent XL Swissmatic
Automatic72h
ETA A05.H31 chronograph Review
Tissot PRX Automatic Chronograph, Tissot PRX Chronograph, Tissot Heritage 1973
Automatic60h
ETA 6497 / 6498 Review
Pocket-watch style wristwatches, Panerai (older), Stowa
Hand-wound46h
ETA 2892-A2 Review
Longines, IWC (base), Breitling (base)
Automatic42h
ETA 2893-2 GMT Review
Swiss GMT microbrands, Tissot Heritage Navigator, Sinn 857 UTC
Automatic42h
Valjoux 7750 Review
Chronographs from Tissot, Hamilton, Breitling, IWC, Sinn 103, IWC Pilot's Watch Chronograph
Automatic42h
ETA 2824-2 Review
Hamilton (older), Oris, Swiss microbrands
Automatic38h
ETA 2836-2 Review
Tissot Heritage Visodate, Swiss day-date automatics, Tissot Heritage Visodate T019.430
Automatic38h

FAQ

Which ETA movement has the longest power reserve?

The Powermatic 80, at about 80 hours (about 3.3 days).

How long does a ETA watch run off the wrist?

Between 38 and 80 hours from full, depending on the movement. Look yours up in the table.

Never let one stop

Watch Winder knows all of these movements. Add your watches by name and it counts down each one's reserve, then reminds you before any of them stops.