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Old 18 June 2018, 02:35 AM   #1
V25V
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Cal 3120 Disparities

Anyone with different 3120 variants notice any differences in the "feel" of the movement? My 15300 when fully wound, I do not feel much of anything but some resistance. My offshores with other movements have a "click" which I suppose is a clutch of sorts to prevent overwinding. My newest addition, FC Diver however, almost feels "crunchy" if you will after 40 winds. That's fully wound of course and I do not keep winding but right at 40 it gets that feel. Anyone else have this?


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Old 18 June 2018, 07:40 AM   #2
V25V
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Anyone with different 3120 variants notice any differences in the "feel" of the movement? My 15300 when fully wound, I do not feel much of anything but some resistance. My offshores with other movements have a "click" which I suppose is a clutch of sorts to prevent overwinding. My newest addition, FC Diver however, almost feels "crunchy" if you will after 40 winds. That's fully wound of course and I do not keep winding but right at 40 it gets that feel. Anyone else have this?


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I wound my 15300 up and it's actually somewhat similar. Maybe just more pronounced on the diver for some reason? Maybe the FC case?


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Old 15 October 2018, 04:31 PM   #3
timeskeeping
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I wound my 15300 up and it's actually somewhat similar. Maybe just more pronounced on the diver for some reason? Maybe the FC case?


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I've just noticed my 3120 movement also has alot of resistance after winding, it has now come to a point where i'm trying to screw down the crown and there's so much tension i actually can't lock down the crown. I'm not sure if this is a issue. also seeking advise.
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Old 15 October 2018, 11:37 PM   #4
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I've just noticed my 3120 movement also has alot of resistance after winding, it has now come to a point where i'm trying to screw down the crown and there's so much tension i actually can't lock down the crown. I'm not sure if this is a issue. also seeking advise.


Mine just keeps on turning and apparently winding. I say apparently as I know the clutch will have engaged to prevent over winding but the feel doesn’t change in a significantly noticeable way.
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Old 16 October 2018, 06:27 AM   #5
PJ S
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There’s no clutch, the mainspring just slips within the barrel.
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Old 16 October 2018, 06:59 AM   #6
SC11
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There’s no clutch, the mainspring just slips within the barrel.
Is that the case, please explain what happens?

I’m wondering if this would be visible in action on the cal 3132?
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