Watch WinderGuides / How long does an automatic run without wearing?
Basics
How long will an automatic watch run without wearing it?
Usually 38 to 80 hours, or about one and a half to three and a half days, from a full wind. A few modern movements run five days. The exact figure is the movement's power reserve, and it only applies if the watch was fully wound when you took it off.
The short answer by movement type
- Older and entry-level automatics (ETA 2824, Seiko 4R and NH, Miyota): about 38 to 42 hours. Take it off on Friday evening and it stops on Sunday.
- Modern mid-range (Seiko 6R, Omega co-axial, Hamilton H-10, Tissot Powermatic 80): 50 to 80 hours. Most will last a weekend.
- Long-reserve (Grand Seiko 9RA2, Oris Calibre 400): around 120 hours, five days.
Every movement, off the wrist
"Survives a weekend" means a full watch taken off at 6pm on Friday is still running at 8am on Monday, which takes 62 hours.
| Movement | Reserve | Off the wrist | Survives a weekend? |
|---|---|---|---|
| Calibre SH21 Christopher Ward C60 Trident Pro, C63 Sealander SH21 | 120h | 5.0 days | Yes |
| Grand Seiko 9RA2 Spring Drive Grand Seiko Evolution 9 SLGA, SLGA009 | 120h | 5.0 days | Yes |
| Oris Calibre 400 Oris Aquis, Oris ProPilot Calibre 400 | 120h | 5.0 days | Yes |
| Swatch Sistem51 Swatch Sistem51, Swatch Blancpain Scuba Fifty Fathoms | 90h | 3.8 days | Yes |
| Grand Seiko 9SA5 Grand Seiko Evolution 9 SLGH, White Birch | 80h | 3.3 days | Yes |
| Hamilton H-10 Khaki Field Auto, Khaki Navy | 80h | 3.3 days | Yes |
| Hamilton H-14 GMT Khaki Aviation Converter Auto GMT, Khaki Navy GMT | 80h | 3.3 days | Yes |
| Hamilton H-23 Khaki Field Mechanical Power Reserve, Khaki Field Power Reserve | 80h | 3.3 days | Yes |
| Hamilton H-30 Khaki Field Day Date, Khaki Aviation Pilot Day Date | 80h | 3.3 days | Yes |
| Hamilton H-40 Khaki Field King, Khaki King | 80h | 3.3 days | Yes |
| Hamilton H-50 Khaki Field Mechanical, Khaki Field Mechanical Bronze | 80h | 3.3 days | Yes |
| Powermatic 80 Tissot PRX, Tissot Gentleman | 80h | 3.3 days | Yes |
| TAG Heuer Heuer 02 TAG Heuer Carrera Chronograph, Monaco | 80h | 3.3 days | Yes |
| TAG Heuer TH31 Aquaracer Professional 300, Aquaracer Professional 300 Date | 80h | 3.3 days | Yes |
| Grand Seiko 9R65 Spring Drive Grand Seiko Snowflake SBGA211, Grand Seiko Snowflake | 72h | 3.0 days | Yes |
| Grand Seiko 9S65 Grand Seiko SBGR, SBGR253 | 72h | 3.0 days | Yes |
| Longines L888 Longines HydroConquest, Spirit | 72h | 3.0 days | Yes |
| Panerai P.9010 Luminor Marina, Luminor Marina 44mm | 72h | 3.0 days | Yes |
| Rolex 4130 Cosmograph Daytona 116500LN, Cosmograph Daytona 116520 | 72h | 3.0 days | Yes |
| Rolex 4131 Cosmograph Daytona, Rolex Daytona | 72h | 3.0 days | Yes |
| Seiko 6R54 / 6R55 Prospex Alpinist GMT, Prospex SPB | 72h | 3.0 days | Yes |
| Seiko 6R5J open heart Presage Sharp Edged Open Heart, Presage Classic Series Open Heart | 72h | 3.0 days | Yes |
| Tissot Swissmatic Tissot Swissmatic, Tissot Everytime Swissmatic | 72h | 3.0 days | Yes |
| Rolex 3230 Submariner No Date, Explorer | 70h | 2.9 days | Yes |
| Rolex 3235 Submariner Date, Datejust 41 | 70h | 2.9 days | Yes |
| Rolex 3255 Rolex Day-Date 40, Rolex Day-Date 36 | 70h | 2.9 days | Yes |
| Rolex 3285 GMT-Master II, GMT-Master II Pepsi | 70h | 2.9 days | Yes |
| Seiko 6R31 SPB287, King Seiko Garyu-Bai | 70h | 2.9 days | Yes |
| Seiko 6R35 Prospex SPB143, Alpinist SPB121 | 70h | 2.9 days | Yes |
| Tudor MT5400 Tudor Pelagos 39, Tudor Black Bay 54 | 70h | 2.9 days | Yes |
| Tudor MT5402 Black Bay Fifty-Eight, Black Bay 58 | 70h | 2.9 days | Yes |
| Tudor MT5602 Black Bay, Tudor Black Bay 41 | 70h | 2.9 days | Yes |
| Tudor MT5652 GMT Black Bay GMT, Black Bay Pro | 70h | 2.9 days | Yes |
| Tudor MT5813 chronograph Black Bay Chrono, Black Bay Chrono 79360N | 70h | 2.9 days | Yes |
| Sellita SW510 chronograph Oris Aquis Chronograph, TAG Heuer Formula 1 Chronograph | 62h | 2.6 days | Yes |
| ETA A05.H31 chronograph Tissot PRX Automatic Chronograph, Tissot PRX Chronograph | 60h | 2.5 days | No |
| Hamilton H-21 Khaki Aviation chronographs, Khaki X-Wind Auto Chrono | 60h | 2.5 days | No |
| Hamilton H-31 Hamilton Intra-Matic Auto Chrono, Jazzmaster Performer Auto Chrono | 60h | 2.5 days | No |
| Hamilton H-51 Intra-Matic Chronograph H, Hamilton Intra-Matic Chronograph H | 60h | 2.5 days | No |
| IWC 82000 IWC Portugieser Automatic 40, IWC Ingenieur Automatic 42 | 60h | 2.5 days | No |
| Omega 8900 Aqua Terra 41, Planet Ocean 43.5 | 60h | 2.5 days | No |
| Omega 9900 Omega Speedmaster Racing, Omega Speedmaster Pilot | 60h | 2.5 days | No |
| Sellita SW300-1 Sinn U50, Slim Swiss automatics | 56h | 2.3 days | No |
| Sellita SW330-2 GMT Christopher Ward C63 Sealander GMT, C65 Dune GMT | 56h | 2.3 days | No |
| Grand Seiko 9S85 Grand Seiko Hi-Beat SBGH, SBGH201 | 55h | 2.3 days | No |
| Omega 8800 Seamaster Diver 300M, Aqua Terra 38 | 55h | 2.3 days | No |
| Omega 3861 Speedmaster Professional Moonwatch, 310.30.42.50.01.001 | 50h | 2.1 days | No |
| Orient F6N43 Orient Star Contemporary, Orient Star Sports Outdoor | 50h | 2.1 days | No |
| Seiko 6R15 Alpinist SARB017, SARB033 | 50h | 2.1 days | No |
| Seiko 8L35 Marinemaster SBDX, Prospex 1965 Heritage | 50h | 2.1 days | No |
| Zenith El Primero 400 Zenith Chronomaster Revival, El Primero chronographs | 50h | 2.1 days | No |
| Omega 1861 Speedmaster Professional (pre-2021), Speedmaster 3570.50 | 48h | 2.0 days | No |
| Rolex 3135 Submariner Date (pre-2020), Datejust (older) | 48h | 2.0 days | No |
| ETA 6497 / 6498 Pocket-watch style wristwatches, Panerai (older) | 46h | 1.9 days | No |
| Seiko 6L35 King Seiko KS1969, Alpinist 1959 Re-creation | 45h | 1.9 days | No |
| Seiko 6R21 Presage day-date power reserve, SPB305 | 45h | 1.9 days | No |
| Seiko 6R27 SPB093, Presage date power reserve | 45h | 1.9 days | No |
| Seiko 6R64 GMT Presage Sharp Edged GMT, SPB361 | 45h | 1.9 days | No |
| Seiko 8R46 / 8R48 Prospex Speedtimer Mechanical, SRQ | 45h | 1.9 days | No |
| Nomos Alpha Nomos Tangente, Orion | 43h | 1.8 days | No |
| Cartier 1847 MC Cartier Santos, Ballon Bleu | 42h | 1.8 days | No |
| ETA 2892-A2 Longines, IWC (base) | 42h | 1.8 days | No |
| ETA 2893-2 GMT Swiss GMT microbrands, Tissot Heritage Navigator | 42h | 1.8 days | No |
| Miyota 8215 Citizen Automatic, Entry-level automatics | 42h | 1.8 days | No |
| Miyota 9015 / 9039 Lorier, Baltic | 42h | 1.8 days | No |
| Miyota 9075 GMT Baltic Aquascaphe GMT MK-II, Lorier Hyperion | 42h | 1.8 days | No |
| Nomos DUW 4101 Nomos Tangente 38 Date, Metro (manual) | 42h | 1.8 days | No |
| Valjoux 7750 Chronographs from Tissot, Hamilton, Breitling, IWC, Sinn 103 | 42h | 1.8 days | No |
| Seiko 4R35 / 4R36 Seiko 5 Sports, SRPD | 41h | 1.7 days | No |
| Seiko 4R37 Seiko 5 Sports Helmet, SSA295 | 41h | 1.7 days | No |
| Seiko 4R38 open heart Presage Cocktail Time Open Heart, Presage Cocktail Time SSA441 | 41h | 1.7 days | No |
| Seiko 4R39 Presage Style60's 24-hour, SSA425 | 41h | 1.7 days | No |
| Seiko 4R57 power reserve Presage Cocktail Time Power Reserve, Presage Cocktail Time SSA343 | 41h | 1.7 days | No |
| Seiko 4R72 skeleton Presage Style60's Skeleton, Presage Cocktail Time Star Bar | 41h | 1.7 days | No |
| Seiko 7S26 SKX007, SKX009 | 41h | 1.7 days | No |
| Seiko 7S36 Seiko 5 Sports SNZG, Seiko 5 Sports SNZF | 41h | 1.7 days | No |
| Seiko NH34 / 4R34 GMT Seiko 5 Sports GMT, SSK | 41h | 1.7 days | No |
| Seiko NH35 / NH36 SKX mods, Invicta Pro Diver | 41h | 1.7 days | No |
| Orient F6724 Orient Bambino, Orient Bambino 38 | 40h | 1.7 days | No |
| Orient F6922 Orient Kamasu, Orient Mako | 40h | 1.7 days | No |
| Sea-Gull ST2130 Sea-Gull, Seagull | 40h | 1.7 days | No |
| ETA 2824-2 Hamilton (older), Oris | 38h | 1.6 days | No |
| ETA 2836-2 Tissot Heritage Visodate, Swiss day-date automatics | 38h | 1.6 days | No |
| Sellita SW200-1 Christopher Ward, Oris | 38h | 1.6 days | No |
| TAG Heuer Calibre 5 TAG Heuer Aquaracer, Carrera (older) | 38h | 1.6 days | No |
| Vostok 2416B Vostok Amphibia, Komandirskie | 31h | 1.3 days | No |
Why yours might stop sooner
- It wasn't full when you took it off. A day at a desk may only give it part of its reserve. Wind it by the crown first to be sure.
- It needs a service. Old oil and a tired mainspring shorten the reserve.
- The published figure is optimistic. Makers measure a new watch in ideal conditions.
More in Why did my automatic watch stop overnight?
Work it out for your watch
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FAQ
How long does an automatic watch keep running off the wrist?
For its power reserve, usually 38 to 80 hours, if it was fully wound when you took it off. Some modern movements run about five days.
Will my automatic watch stop over the weekend?
Friday evening to Monday morning is about 62 hours. Movements with 70 or 80 hours of reserve make it; 38 to 42-hour movements like the ETA 2824 and Seiko NH35 stop on Sunday.
How long can an automatic watch go without being worn?
It can sit stopped for as long as you like without harm. It only runs for its power reserve, then stops until you wind or wear it again.
Is it bad for an automatic watch to stop?
No. Just set the date carefully when you restart it, avoiding roughly 9pm to 3am.
Which automatic watches have the longest power reserve?
In our list, the Grand Seiko 9RA2, Oris Calibre 400 and Sellita SH21 run about 120 hours. See the longest power reserve list.