How much winding to get an auto working well?

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Wiggles
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Re: How much winding to get an auto working well?

Post by Wiggles »

Commisar wrote:
Fri May 08, 2020 6:02 pm
Wiggles wrote:I agree with Commisar, no more than about twelve hours worth. I once ruined an automatic movement by attempting to wind it to the maximum power reserve
Oh man that's awful

What happened, did a clutch not disengage?

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It was a relatively inexpensive watch, but one I liked. It was a Parnis homage watch to a PAM. I informed the supplier in China, the supplier paid for me to return the watch, he replaced the movement and got it back to me within a month. That's service you rarely get from a UK seller

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nbg
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Re: How much winding to get an auto working well?

Post by nbg »

An interesting post. :thumbup:

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watchaholic
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Re: How much winding to get an auto working well?

Post by watchaholic »

Nice write up. Very interesting, thanks
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timor54
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Re: How much winding to get an auto working well?

Post by timor54 »

Very interesting research. It confirms a suspicion I’ve had for a while about my Sinn 104 (SW220) which I used to think had erratic time keeping from rest; I’ve recently started to wind it more to get it going and its time keeping seems to have improved.

Also supports what I think I knew about my North Flag. It’s nailed on at about +2 secs per week; by far the most accurate watch I’ve ever had.

I’ve got a hand wound Hamilton Khaki Field that I fully wind when I go to wear it. Again this runs at 0 spd for nearly 80 hrs and only drifts off for the last 4-5 hours of its power reserve.
Tim

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Re: How much winding to get an auto working well?

Post by Wiggles »

timor54 wrote:
Sat May 09, 2020 11:29 am
Very interesting research. It confirms a suspicion I’ve had for a while about my Sinn 104 (SW220) which I used to think had erratic time keeping from rest; I’ve recently started to wind it more to get it going and its time keeping seems to have improved.

Also supports what I think I knew about my North Flag. It’s nailed on at about +2 secs per week; by far the most accurate watch I’ve ever had.

I’ve got a hand wound Hamilton Khaki Field that I fully wind when I go to wear it. Again this runs at 0 spd for nearly 80 hrs and only drifts off for the last 4-5 hours of its power reserve.
From another angle, I have an orient that doesn't hand wind, yet it is accurate to within a few seconds a day

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Re: How much winding to get an auto working well?

Post by Commisar »

What an interesting thread this has turned out to be

The included graphs are great

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Amor Vincit Omnia
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Re: How much winding to get an auto working well?

Post by Amor Vincit Omnia »

Wiggles wrote:
Sat May 09, 2020 3:55 pm
From another angle, I have an orient that doesn't hand wind, yet it is accurate to within a few seconds a day
A quietly underestimated brand. Having owned two of them I am not in the least surprised.
Steve
The half minute which we daily devote to the winding-up of our watches is an exertion of labour almost insensible; yet, by the aid of a few wheels, its effect is spread over the whole twenty-four hours.
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Fat-Sam
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Re: How much winding to get an auto working well?

Post by Fat-Sam »

timor54 wrote:
Sat May 09, 2020 11:29 am
Very interesting research. It confirms a suspicion I’ve had for a while about my Sinn 104 (SW220) which I used to think had erratic time keeping from rest; I’ve recently started to wind it more to get it going and its time keeping seems to have improved.

Also supports what I think I knew about my North Flag. It’s nailed on at about +2 secs per week; by far the most accurate watch I’ve ever had.

I’ve got a hand wound Hamilton Khaki Field that I fully wind when I go to wear it. Again this runs at 0 spd for nearly 80 hrs and only drifts off for the last 4-5 hours of its power reserve.
I will try it with my new Sinn 104(Abe) as that runs a bit slow- there’s always a thin line between making sure it’s fully wound and the old spinning rotor problem you get from hand winding selittas
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Re: How much winding to get an auto working well?

Post by watchaholic »

^^^^Possibly better to just have it regulated if it needs to run a bit faster than risk damage from overwinding?
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