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Stem Extension 1106 for Omega Cal. 620 Movement

cal. 620 omega
R
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Hello all

I’ve ordered a Stem extender (1106) for my 620 movement.
I’ve received today and noticed the crown won’t for.

Is there a small thread size for this part ???

IMG_4281.webp
 
Archer
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The crown has the female side of a split stem on it. You have to use the specific male side for the movement that matches this...
 
R
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Archer Archer
The crown has the female side of a split stem on it. You have to use the specific male side for the movement that matches this...
Any idea what they are called or reference number ?
 
Archer
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R Rhyljace
Any idea what they are called or reference number ?
There are two options:


72206201160 - this one is listed at 6.95 mm

And:

72206201159 - no length given, but the photo appears that this is shorter than the one above.
 
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