Watch WinderMovement reserves / Longest power reserve watches
Reference
Longest power reserve watches
The 20 movements in our list that run longest from a full wind, led by the Calibre SH21 at 120 hours.
| Movement | Winding | Reserve |
|---|---|---|
| Calibre SH21 Review Christopher Ward C60 Trident Pro, C63 Sealander SH21, C9 Harrison 5-Day | Automatic | 120h |
| Grand Seiko 9RA2 Spring Drive Review Grand Seiko Evolution 9 SLGA, SLGA009, Lake Suwa SLGA021 | Automatic | 120h |
| Oris Calibre 400 Review Oris Aquis, Oris ProPilot Calibre 400, Oris Divers Sixty-Five Calibre 400 | Automatic | 120h |
| Swatch Sistem51 Review Swatch Sistem51, Swatch Blancpain Scuba Fifty Fathoms, Scuba Fifty Fathoms | Automatic | 90h |
| Grand Seiko 9SA5 Review Grand Seiko Evolution 9 SLGH, White Birch, White Birch SLGH005 | Automatic | 80h |
| Hamilton H-10 Review Khaki Field Auto, Khaki Navy, Jazzmaster | Automatic | 80h |
| Hamilton H-14 GMT Review Khaki Aviation Converter Auto GMT, Khaki Navy GMT, Hamilton Broadway GMT | Automatic | 80h |
| Hamilton H-23 Review Khaki Field Mechanical Power Reserve, Khaki Field Power Reserve | Hand-wound | 80h |
| Hamilton H-30 Review Khaki Field Day Date, Khaki Aviation Pilot Day Date, Pan Europ Day Date | Automatic | 80h |
| Hamilton H-40 Review Khaki Field King, Khaki King, Khaki Field King Day-Date | Automatic | 80h |
| Hamilton H-50 Review Khaki Field Mechanical, Khaki Field Mechanical Bronze | Hand-wound | 80h |
| Powermatic 80 Review Tissot PRX, Tissot Gentleman, Tissot Seastar | Automatic | 80h |
| TAG Heuer Heuer 02 Review TAG Heuer Carrera Chronograph, Monaco, Carrera Glassbox | Automatic | 80h |
| TAG Heuer TH31 Review Aquaracer Professional 300, Aquaracer Professional 300 Date, Aquaracer Professional 300 GMT | Automatic | 80h |
| Grand Seiko 9R65 Spring Drive Review Grand Seiko Snowflake SBGA211, Grand Seiko Snowflake, SBGA011 | Automatic | 72h |
| Grand Seiko 9S65 Review Grand Seiko SBGR, SBGR253, SBGR251 | Automatic | 72h |
| Longines L888 Review Longines HydroConquest, Spirit, Legend Diver | Automatic | 72h |
| Panerai P.9010 Review Luminor Marina, Luminor Marina 44mm, PAM01313 | Automatic | 72h |
| Rolex 4130 Review Cosmograph Daytona 116500LN, Cosmograph Daytona 116520, Cosmograph Daytona 116519LN | Automatic | 72h |
| Rolex 4131 Review Cosmograph Daytona, Rolex Daytona, Daytona Panda | Automatic | 72h |
FAQ
Which watch has the longest power reserve?
In our list, the Calibre SH21, at about 120 hours. Some hand-wound and high-end watches run for a week or more.
Is a longer power reserve better?
For daily life, yes: a watch that survives a weekend off the wrist needs resetting far less often. It says nothing about accuracy or quality on its own.
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.