Hammer Assembly 1161.050/1161.853 Chime pvc strap keepers the 24 hour indicator is

the 24 hour indicator is at the 9 o'clock position

Fits Omega® case numbers: 3903

3 mm (9 /16")

Bergeon Collet Tightening and Reaming Tool is designed with 5 different notches and an adjustment screw on the side to allow gentle tightening of the hairspring collet to better fit the balance wheel

Large Omega Clip This clip-on earring measures 17mm x 9

Hammer Assembly 1161.050/1161.853 Chime pvc strap keepers the 24 hour indicator isHammer Assembly 1161. 050 1161. 853 Chime is specifically for Hermle Movements (both old and new style) 1161. 050 and 1161. 853 Chime side. When changing the old execution to the new make sure to change the strike assembly as well as the chime assembly.