These are two Angelus SF-240, as you can see one with alarm and the other one without stem.
The bridges to convert.
Drilling the hole.
Milling the bridge.
Milling the wheels holes.
The screw threads.
Now, remove the Cotes for a brushed finished, and filling the antique alarm key hole.
Making a special piece for the anti lock crown sistem.
Lo siguiente para evitar que se mueva al girar la rueda, es practicar un agujero de 0.4 mm al lado de la rosca.
After electroplating.
The movement with another friends.
Regards to all