120 hours...

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jamesnw
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Re: 120 hours...

Post by jamesnw »

missF wrote:
Kip wrote:A SH21 movement can take about 250-300 turns to fully wind from a stop.
:shock: wow!

(to the OP - enjoy your stunning new watch and that 120hr power reserve - let's hope you never have to crank it up from a full stop!)
thanks, I gave it a wind of about 100 turns so will see how it goes.

11 CW watches, that is quite a few. I do wonder how people manage large collections. Part of the draw of a long power reserve to me is to avoid constant winding. With large collections you must wind quite a lot ?
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Re: 120 hours...

Post by missF »

^^ i lied gratuitously! i have 1 CW watch that is a C11! :D
watching you fail in your quest for a “one watch” has been great entertainment
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Re: 120 hours...

Post by jamesnw »

missF wrote:^^ i lied gratuitously! i have 1 CW watch that is a C11! :D
lol, ok.... just a typo maybe :)
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Re: 120 hours...

Post by Bahnstormer_vRS »

Kip wrote:A SH21 movement can take about 250-300 turns to fully wind from a stop. A manual wind will offer resistance when fully wound. The automatics do not, but cannot be over wound.
Even the hand wound C8 Flyer PR?

I would have thought JJ would have modified the gearing to get a full wind in <100 turns.

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Re: 120 hours...

Post by Kip »

My C9 Sub Second takes 300 turns, when stopped, to get a full wind so I would think that the C8 PR Chronometer would be about the same.
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Re: 120 hours...

Post by robinbarke »

Kip wrote:A SH21 movement can take about 250-300 turns to fully wind from a stop. A manual wind will offer resistance when fully wound. The automatics do not, but cannot be over wound.
Kip that is simply incredible! I have just carefully wound 300 turns and it took 4 minutes. My Unitas hand wound took 41 turns to fully wind. Why should a dual spring take up to 300 turns and how do you assess when it's fully wound?

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Re: 120 hours...

Post by nbg »

250-300 winds for a 5 day movement seems rather a lot! :shock:

I have just fully wound an 8 day (that runs for almost 9) - it took 72 winds.

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Re: 120 hours...

Post by CBMVic20 »

marko wrote:
magicman wrote:
CBMVic20 wrote: when turning the crown to set the time, the second hand would move.
My C9 5 day does this too, should it not ? I thought it was normal.

Regards Steve
It's normal if you back up, it goes back though.
Don't think this is normal behaviour, none of my other watches do this and by moving, I don't mean a few ticks but almost a five second jump. Mine would also move both forward and backwards when turning the crown to set the time.
jamesnw wrote:I am pleased to say it arrived today and seems like new so not the same one and all is good so far :D
Many congrats, it's a lovely watch, especially with the white dial :thumbup:

How does the wind feel on yours?
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Re: 120 hours...

Post by Kip »

robinbarke wrote:
Kip wrote:A SH21 movement can take about 250-300 turns to fully wind from a stop. A manual wind will offer resistance when fully wound. The automatics do not, but cannot be over wound.
Kip that is simply incredible! I have just carefully wound 300 turns and it took 4 minutes. My Unitas hand wound took 41 turns to fully wind. Why should a dual spring take up to 300 turns and how do you assess when it's fully wound?

Robin
Let me define what I mean by a turn/wind. Putting the crown between my thumb and middle finger I roll my thumb forward/finger backward. This actually equates to 1/2 turn of the crown. I must repeat this about 300 times to achieve a full wind on my C9 Sub Second.

To compare against your time frame Robin, I just wound my C9SS. and timed as you did. It took 2 minutes and 50 seconds to wind 321 turns (my method) until I met resistance. I would say the only difference is due to speed.

I suppose you could say that I am actually only doing a half turn so this would equate to 150-160 full turns if that sounds more reasonable, but I have always described the amount of turns the same way using my own method.
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Re: 120 hours...

Post by jamesnw »

thanks.

The wind is a little stiff, and you can feel a bit of resistance (if that is the right word). If I can't overwind it, I am not sure how i tell it is fully wound...
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Re: 120 hours...

Post by jamesnw »

jamesnw wrote:thanks.

The wind is a little stiff, and you can feel a bit of resistance (if that is the right word). If I can't overwind it, I am not sure how i tell it is fully wound...
this is in answer to kip's question...
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