The Bergeon 31081-TETC has an adapted blade to work specifically with the ETACHRON stud. The nut 'blade' has been shaped to fit over the stud and regulating pins. Turning the stud ..
Boley movement holder for Rolex with adjustable support screw, to suit hand-set pressing tools with a base plate of Ø 31mm.
No more pushing through the gear train.
Suitable for ..