baltic Posted March 29, 2007 Report Share Posted March 29, 2007 Just a question that has been puzzling me wee brain. On the ETA autos 2824, 2836 etc does anyone know how long wearing the watch equals running time e.g. I wear it for 3 hours around the house means it'll give the watch X hours of running time? I know it depends on your activity levels in that time period but I mean normal stuff - sitting down, walking around, on PC etc. not running or skiiing. I've looked through the 101.102 posts from maestro Zig for enlightenment, apologies if I missed it in there. The reason is I have one auto watch a uPO with a ETA 2836 and I like to keep it running, don't want a winder and wear it in the evenings to keep it wound. Anyhoo no worries if it's not known, just curious. Ta in advance Link to comment Share on other sites More sharing options...
RWG Technical Posted March 29, 2007 Report Share Posted March 29, 2007 Couldn't even guess...if it had a PR indicator it would be easy to come up with a figure... I think it takes 600-800 or something turns of the rotor to wind the watch fully from a stop, so I would think a normal level of activity durning the day, should result in a fully wound watch at the end of the day... A simple test, let the watch run down, put it on, set the time and wear it for half a day, note the time when you take it off, and see how long it runs before it stops, that should be fairly accurate guage to go by. RG Link to comment Share on other sites More sharing options...
t Posted March 29, 2007 Report Share Posted March 29, 2007 why you not wind it with hand? a automatic movement is also a hand wind movement Link to comment Share on other sites More sharing options...
baltic Posted March 30, 2007 Author Report Share Posted March 30, 2007 Thanks for the replies. @ Zig, when I've got a bit of time I'll do just that and report back on my findings, cheers. Link to comment Share on other sites More sharing options...
who Posted April 17, 2007 Report Share Posted April 17, 2007 I found this topic is very interesting so I did a small test on my watch (2836-2 movement). The watch was completely stop this morning, I put it on wrist for 1 hour for some normal activities (like walk around and typing ....etc ) and then put it back on the table. Since then it had run for another 14 hours until it stop again. I will try to do the same test again.....probably wear it 1/2 hr with similar action next time to see the different effect in power reserve. here's what I got after 4 test.... 1/2 hr wrist time >> 9.5 hours running 1 hour wrist time >> 14 hours running 3 hour wrist time >> 28.5 hours running 6 hour wrist time >> 34 hours running Link to comment Share on other sites More sharing options...
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