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Oscillating Pinion for 7750

PedroG
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PedroG New Member

PedroG

Posted
Posted

Hey guys,

 

Just bought a 7750 movement for a project and since it was from a Breitling Chronomat I assumed it would have three subpinions.

Just got the movement in my hands and my eyes aren't what they used to be but I still can't see the seconds pinion there. Parts wise, is it a matter of buying a spare oscillating pinion for 60 seconds? Or do I need anything else?

Thanks,

 

PHG

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  • 2 weeks later...
Bonefixer WRT Addict

Bonefixer

Posted
Posted

The running seconds is at 9 o’clock on a 7750 and that appears to be there. What you’re missing is the minute recording pinion at 12 o’clock, unless I’ve got this completely wrong. 
 

The oscillating pinion is something different - it’s basically the clutch mechanism that engages with the chrono wheel when you engage the start/stop pusher. 

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