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This is a genuine ETA 255.112 movement winding stem , Swiss made, designed for the 11½ ligne (25.60mm) 3-hand with date quartz caliber. It connects the crown to the keyless works for time setting and date quickset functions, featuring Tap 10 thread specification. This product is brand new and original, requiring cutting to case length during installation.
Part Number:401-1104 / ETA255111.40510
Alternate Spec:ETA255111.40511(Tap 11)
Compatible Movements:ETA 255.112, 255.111, 255.031
Origin:Swiss Made
Thread Spec:Tap 10(0.90mm)
1. Is this winding stem an original ETA genuine part?
Yes.
2. Which movements is this stem compatible with?
It fits ETA 255.112, 255.111, 255.031 and other 11½ ligne calibers. The 255.112 is a 6-jewel 3-hand with date movement, only 1.95mm thick, used in brands such as Longines and Tissot.
3. Does the stem need to be cut during installation?
The stem is supplied at a general length and must be cut to fit the specific case length before attaching the crown. This should be performed by a qualified watchmaker.
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