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Power reserve test on my new 3861 Speedymaster Pro.

Canuck
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bsowers34 bsowers34
TBD. I just wound past where I used to stop on my new one, 39 turns until a harder stop. I'll keep track of how long it goes now.

Let us know what you find.
 
fiberguy
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bsowers34 bsowers34
TBD. I just wound past where I used to stop on my new one, 39 turns until a harder stop. I'll keep track of how long it goes now.

No doubt you will find the watch runs for considerably longer
 
bsowers34
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Canuck Canuck
Fear that the mainspring may break if you wind the watch until the crown reaches a hard stop means there is no answer to the power reserve of your Speedmaster. Persist in this fear, and you’ll never have the answer to power reserve. Mainsprings break, it’s a fact of life, whether you wind the watch fully, or whether you don’t. I wound my Speedmaster with the calibre 863 movement in it, yesterday. The watch was run down, and it took 60 “twists” of the crown to wind it to a full stop. It has proven to run well over 50 hours from a full wind, with the chronograph functioning all the time. Here are pictures of a broken mainspring that I replaced for a friend, several years ago. This breakage had nothing to do with how he wound the watch!

IMG_4870.jpeg IMG_0996.jpeg IMG_4872.jpeg IMG_0998.jpeg
When I got the white one it took 82 turns to the stop when totally dead. And still ran half of the supposed time.
Canuck Canuck
Fear that the mainspring may break if you wind the watch until the crown reaches a hard stop means there is no answer to the power reserve of your Speedmaster. Persist in this fear, and you’ll never have the answer to power reserve. Mainsprings break, it’s a fact of life, whether you wind the watch fully, or whether you don’t. I wound my Speedmaster with the calibre 863 movement in it, yesterday. The watch was run down, and it took 60 “twists” of the crown to wind it to a full stop. It has proven to run well over 50 hours from a full wind, with the chronograph functioning all the time. Here are pictures of a broken mainspring that I replaced for a friend, several years ago. This breakage had nothing to do with how he wound the watch!

IMG_4870.jpeg IMG_0996.jpeg IMG_4872.jpeg IMG_0998.jpeg
I just wound the new hesalite one I got Monday as suggested. 39 turns past where I would have when it started to kick back a bit, and the stop it hit is more robust. I'll be very mad if this is all it was. But I now have both moonwatches so score.
 
bsowers34
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Ok, it stopped after 21 hours. This time it took 102 turns to the "hard" stop which is interesting. Do these things have a break in period? I wouldn't think so after it's been through certification.
 
Archer
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bsowers34 bsowers34
Ok, it stopped after 21 hours. This time it took 102 turns to the "hard" stop which is interesting. Do these things have a break in period? I wouldn't think so after it's been through certification.

No - any breaking in that happens has already been done before the watch gets to the dealer.
 
Gubbo
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I just logged in to Omega to check, and yes, the power reserve is part of the master chronometer tests.
 
YY77
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Gubbo Gubbo
I just logged in to Omega to check, and yes, the power reserve is part of the master chronometer tests.
It only shows whether it passed, it doesn't show the actual PR, my Seamaster Trilogy runs for 62 hours.
 
Gubbo
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YY77 YY77
It only shows whether it passed, it doesn't show the actual PR, my Seamaster Trilogy runs for 62 hours.

I closed the browser tab, but the pass for my speedy was 50 hours I think, obviously well in excess of the 21 just reported.
 
bsowers34
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Thanks for the advice guys, I will update tomorrow on how it's doing this time.
 
bsowers34
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Gubbo Gubbo
I closed the browser tab, but the pass for my speedy was 50 hours I think, obviously well in excess of the 21 just reported.
The results for both of mine said plus 50 hours.
 
YY77
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Gubbo Gubbo
I closed the browser tab, but the pass for my speedy was 50 hours I think, obviously well in excess of the 21 just reported.
Yes, my A11 has 50h in Metas but irl 64h.
 
ErichPryde
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bsowers34 bsowers34
24 hours and still going.....
Already sounds like things are better this time around! Don't worry too much about getting the winding wrong, you're FIXING that now, much better condition than staying ignorant. We've all done it someway, somehow.

Welcome to the forum!
 
bsowers34
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ErichPryde ErichPryde
Already sounds like things are better this time around! Don't worry too much about getting the winding wrong, you're FIXING that now, much better condition than staying ignorant. We've all done it someway, somehow.

Welcome to the forum!
30 hours now. So I sent one in for repair and bought another one when I didn't have to. But now I have the set...
 
Evitzee
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bsowers34 bsowers34
24 hours and still going.....

bsowers34 bsowers34
30 hours now. So I sent one in for repair and bought another one when I didn't have to. But now I have the set...
If you fully wound it to a full, hard stop it should run for another 32 hours or so.
 
ErichPryde
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bsowers34 bsowers34
30 hours now. So I sent one in for repair and bought another one when I didn't have to. But now I have the set...

Well, sounds like itv worked out ok. You have two very nice watches that you could afford! That's a lot better outcome than, say, not understanding how a manual car goes into gear and then getting it into gear at RPM in your garage. Or, not figuring out why a firearm won't fire while it's pointed at yourself only to have it go off.
 
Kmmdad57
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bsowers34 bsowers34
Neither of mine last anything even close to 50 hours. My new white one is off at omega because it only lasted 8 hours. The new black one is I bought to wear while it’s gone lasted 15 hours today. None of my automatic omegas last anywhere near the stated reserve either. I’m getting disappointed with the brand at this point. No they were not mistreated or overwound, I literally got the black one yesterday.
You are either not fully winding it, or running the chronometer or both. First when I got mind I thought I had it fully wound
bsowers34 bsowers34
Neither of mine last anything even close to 50 hours. My new white one is off at omega because it only lasted 8 hours. The new black one is I bought to wear while it’s gone lasted 15 hours today. None of my automatic omegas last anywhere near the stated reserve either. I’m getting disappointed with the brand at this point. No they were not mistreated or overwound, I literally got the black one yesterday.
You are either not winding fully and or running the large second. There is no way you got 2 Speedmasters with very low run times. Just so you know, I first thought that I was winding my watch fully because it started to feel tight. I was wrong, there was a lot more to go.
 
bsowers34
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Ok, so it stopped this time after 43 hours after winding it as far as it would go. Better but still not 50.
 
Archer
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bsowers34 bsowers34
Ok, so it stopped this time after 43 hours after winding it as far as it would go. Better but still not 50.
Chronograph running or not?
 
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