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This is a genuine Ronda 1042 winding stem , Swiss made, designed for the 4¼”’ (approx. 10.40mm) Slimtech ultra-small quartz movement. It connects the crown to the keyless works for time setting and manual winding functions. Featuring 0.70mm thread diameter and 14mm total length. This product is brand new and original, requiring cutting to case length during installation.
Part Number：3000.176（Ronda）/ 982004011042（Boley）
Compatible Movement：Ronda 1042（4¼”’ Slimtech series）
Origin：Swiss Made
Stem Thread：0.70mm
Total Length：14mm
1. Is this winding stem an original Ronda genuine part?
Yes.
2. Which movements is this stem compatible with?
It fits the Ronda 1042 ultra-small Slimtech caliber（4¼”’, approx. 10.40mm），a two-hand movement（hour/minute）.
3. Does the stem need to be cut during installation?
The stem is supplied at a general length（14mm）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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