Cal 3120 Disparities

[V25V]

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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[V25V]

Originally Posted by V25V

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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[timeskeeping]

Originally Posted by V25V

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.

[Burlington]

Originally Posted by timeskeeping

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.

[PJ S]

There’s no clutch, the mainspring just slips within the barrel.

[SC11]

Originally Posted by PJ S

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?