Watch WinderReference
How long will my watch run?
Published power reserves for 86 popular mechanical movements, from the Seiko NH35 to the Rolex 3235. Search by calibre, brand or watch.
By brand: ETA Grand Seiko Hamilton Miyota Omega Orient Rolex Seiko Sellita TAG Heuer Tudor
By reserve: 70+ hours 80+ hours Longest
| Movement | Winding | Reserve |
|---|---|---|
| Cartier 1847 MC Review Cartier Santos, Ballon Bleu, Pasha | Automatic | 42h |
| Calibre SH21 Review Christopher Ward C60 Trident Pro, C63 Sealander SH21, C9 Harrison 5-Day | Automatic | 120h |
| Miyota 8215 Review Citizen Automatic, Entry-level automatics, Timex Marlin Automatic | Automatic | 42h |
| Miyota 9015 / 9039 Review Lorier, Baltic, Microbrand divers | Automatic | 42h |
| Miyota 9075 GMT Review Baltic Aquascaphe GMT MK-II, Lorier Hyperion, Microbrand true GMTs | Automatic | 42h |
| ETA 2824-2 Review Hamilton (older), Oris, Swiss microbrands | Automatic | 38h |
| ETA 2836-2 Review Tissot Heritage Visodate, Swiss day-date automatics, Tissot Heritage Visodate T019.430 | Automatic | 38h |
| ETA 2892-A2 Review Longines, IWC (base), Breitling (base) | Automatic | 42h |
| ETA 2893-2 GMT Review Swiss GMT microbrands, Tissot Heritage Navigator, Sinn 857 UTC | Automatic | 42h |
| Powermatic 80 Review Tissot PRX, Tissot Gentleman, Tissot Seastar | Automatic | 80h |
| Tissot Swissmatic Review Tissot Swissmatic, Tissot Everytime Swissmatic, Gent XL Swissmatic | Automatic | 72h |
| Valjoux 7750 Review Chronographs from Tissot, Hamilton, Breitling, IWC, Sinn 103, IWC Pilot's Watch Chronograph | Automatic | 42h |
| ETA 6497 / 6498 Review Pocket-watch style wristwatches, Panerai (older), Stowa | Hand-wound | 46h |
| ETA A05.H31 chronograph Review Tissot PRX Automatic Chronograph, Tissot PRX Chronograph, Tissot Heritage 1973 | Automatic | 60h |
| Grand Seiko 9R65 Spring Drive Review Grand Seiko Snowflake SBGA211, Grand Seiko Snowflake, SBGA011 | Automatic | 72h |
| Grand Seiko 9RA2 Spring Drive Review Grand Seiko Evolution 9 SLGA, SLGA009, Lake Suwa SLGA021 | Automatic | 120h |
| Grand Seiko 9S65 Review Grand Seiko SBGR, SBGR253, SBGR251 | Automatic | 72h |
| Grand Seiko 9S85 Review Grand Seiko Hi-Beat SBGH, SBGH201, SBGH289 | Automatic | 55h |
| 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-21 Review Khaki Aviation chronographs, Khaki X-Wind Auto Chrono, Khaki Aviation Converter Auto Chrono | Automatic | 60h |
| 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-31 Review Hamilton Intra-Matic Auto Chrono, Jazzmaster Performer Auto Chrono, Chrono-Matic 50 | Automatic | 60h |
| 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 |
| Hamilton H-51 Review Intra-Matic Chronograph H, Hamilton Intra-Matic Chronograph H, H38429710 | Hand-wound | 60h |
| IWC 82000 Review IWC Portugieser Automatic 40, IWC Ingenieur Automatic 42, Portugieser Automatic 40 | Automatic | 60h |
| Longines L888 Review Longines HydroConquest, Spirit, Legend Diver | Automatic | 72h |
| Nomos Alpha Review Nomos Tangente, Orion, Club | Hand-wound | 43h |
| Nomos DUW 4101 Review Nomos Tangente 38 Date, Metro (manual), Nomos Ludwig 38 Date | Hand-wound | 42h |
| Omega 1861 Review Speedmaster Professional (pre-2021), Speedmaster 3570.50, 311.30.42.30.01.005 | Hand-wound | 48h |
| Omega 3861 Review Speedmaster Professional Moonwatch, 310.30.42.50.01.001, 310.30.42.50.01.002 | Hand-wound | 50h |
| Omega 8800 Review Seamaster Diver 300M, Aqua Terra 38, Aqua Terra 34 | Automatic | 55h |
| Omega 8900 Review Aqua Terra 41, Planet Ocean 43.5, Globemaster | Automatic | 60h |
| Omega 9900 Review Omega Speedmaster Racing, Omega Speedmaster Pilot, Speedmaster Dark Side of the Moon (2025) | Automatic | 60h |
| Orient F6724 Review Orient Bambino, Orient Bambino 38, Orient Bambino Classic Date | Automatic | 40h |
| Orient F6922 Review Orient Kamasu, Orient Mako, Orient Ray | Automatic | 40h |
| Orient F6N43 Review Orient Star Contemporary, Orient Star Sports Outdoor, Orient Star Outdoor | Automatic | 50h |
| Oris Calibre 400 Review Oris Aquis, Oris ProPilot Calibre 400, Oris Divers Sixty-Five Calibre 400 | Automatic | 120h |
| Panerai P.9010 Review Luminor Marina, Luminor Marina 44mm, PAM01313 | Automatic | 72h |
| Rolex 3135 Review Submariner Date (pre-2020), Datejust (older), Submariner 16610 | Automatic | 48h |
| Rolex 3230 Review Submariner No Date, Explorer, Oyster Perpetual | Automatic | 70h |
| Rolex 3235 Review Submariner Date, Datejust 41, Sea-Dweller | Automatic | 70h |
| Rolex 3255 Review Rolex Day-Date 40, Rolex Day-Date 36, Rolex President | Automatic | 70h |
| Rolex 3285 Review GMT-Master II, GMT-Master II Pepsi, GMT-Master II Batman | Automatic | 70h |
| 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 |
| Sea-Gull ST2130 Review Sea-Gull, Seagull, Sea-Gull Ocean Series | Automatic | 40h |
| Seiko 4R35 / 4R36 Review Seiko 5 Sports, SRPD, Seiko Presage Cocktail Time | Automatic | 41h |
| Seiko 4R37 Review Seiko 5 Sports Helmet, SSA295, SSA297 | Automatic | 41h |
| Seiko 4R38 open heart Review Presage Cocktail Time Open Heart, Presage Cocktail Time SSA441, SSA441 | Automatic | 41h |
| Seiko 4R39 Review Presage Style60's 24-hour, SSA425, Presage Japanese Garden | Automatic | 41h |
| Seiko 4R57 power reserve Review Presage Cocktail Time Power Reserve, Presage Cocktail Time SSA343, Presage Cocktail Time SSA459 | Automatic | 41h |
| Seiko 4R72 skeleton Review Presage Style60's Skeleton, Presage Cocktail Time Star Bar, SSA461 | Automatic | 41h |
| Seiko 6L35 Review King Seiko KS1969, Alpinist 1959 Re-creation, SJE085 | Automatic | 45h |
| Seiko 6R15 Review Alpinist SARB017, SARB033, Sumo SBDC | Automatic | 50h |
| Seiko 6R21 Review Presage day-date power reserve, SPB305, SPB307 | Automatic | 45h |
| Seiko 6R27 Review SPB093, Presage date power reserve, SPB359 | Automatic | 45h |
| Seiko 6R31 Review SPB287, King Seiko Garyu-Bai, King Seiko SPB279 | Automatic | 70h |
| Seiko 6R35 Review Prospex SPB143, Alpinist SPB121, Prospex SPB185 | Automatic | 70h |
| Seiko 6R54 / 6R55 Review Prospex Alpinist GMT, Prospex SPB, Alpinist GMT SPB377 | Automatic | 72h |
| Seiko 6R5J open heart Review Presage Sharp Edged Open Heart, Presage Classic Series Open Heart, SPB417 | Automatic | 72h |
| Seiko 6R64 GMT Review Presage Sharp Edged GMT, SPB361, SPB217 | Automatic | 45h |
| Seiko 7S26 Review SKX007, SKX009, SNK809 | Automatic | 41h |
| Seiko 7S36 Review Seiko 5 Sports SNZG, Seiko 5 Sports SNZF, Seiko 5 Sports SNZH | Automatic | 41h |
| Seiko 8L35 Review Marinemaster SBDX, Prospex 1965 Heritage, SBDX001 | Automatic | 50h |
| Seiko 8R46 / 8R48 Review Prospex Speedtimer Mechanical, SRQ, Seiko Speedtimer SRQ047 | Automatic | 45h |
| Seiko NH34 / 4R34 GMT Review Seiko 5 Sports GMT, SSK, Microbrand GMTs | Automatic | 41h |
| Seiko NH35 / NH36 Review SKX mods, Invicta Pro Diver, Microbrand divers | Automatic | 41h |
| Sellita SW200-1 Review Christopher Ward, Oris, Swiss microbrands | Automatic | 38h |
| Sellita SW300-1 Review Sinn U50, Slim Swiss automatics, IWC Mark XVIII | Automatic | 56h |
| Sellita SW330-2 GMT Review Christopher Ward C63 Sealander GMT, C65 Dune GMT, Formex Reef GMT | Automatic | 56h |
| Sellita SW510 chronograph Review Oris Aquis Chronograph, TAG Heuer Formula 1 Chronograph, Bell & Ross BR-05 Chrono | Automatic | 62h |
| Swatch Sistem51 Review Swatch Sistem51, Swatch Blancpain Scuba Fifty Fathoms, Scuba Fifty Fathoms | Automatic | 90h |
| TAG Heuer Calibre 5 Review TAG Heuer Aquaracer, Carrera (older), Aquaracer Professional 200 | Automatic | 38h |
| 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 |
| Tudor MT5400 Review Tudor Pelagos 39, Tudor Black Bay 54, BB54 | Automatic | 70h |
| Tudor MT5402 Review Black Bay Fifty-Eight, Black Bay 58, Black Bay Fifty-Eight 79030N | Automatic | 70h |
| Tudor MT5602 Review Black Bay, Tudor Black Bay 41, Black Bay 79230 | Automatic | 70h |
| Tudor MT5652 GMT Review Black Bay GMT, Black Bay Pro, Tudor Black Bay GMT | Automatic | 70h |
| Tudor MT5813 chronograph Review Black Bay Chrono, Black Bay Chrono 79360N, Black Bay Chrono Panda | Automatic | 70h |
| Vostok 2416B Review Vostok Amphibia, Komandirskie, Amphibia 420 | Automatic | 31h |
| Zenith El Primero 400 Review Zenith Chronomaster Revival, El Primero chronographs, Chronomaster Revival A384 | Automatic | 50h |
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