30211
For pocket watches. Nickelled.Tightening on Ø external from 25 to 62 mm.
4039
For calibres 3 3/4''' - 11'''. Chromium-plated and sanded.
4039-P
For calibres 3 3/4''' - 11'''.Tightening on Ø external from 12 to 30 mm.
4040
For calibres 8 3/4''' - 19'''. Chromium-plated and sanded.
4040-P
For calibres 8 3/4''' - 19'''. Tightening on Ø external from 30 to 48 mm.