Valjoux 7730/Venus 188 Movement Case Mount Screws?

[Emily]

Hello!

I recently bought a vintage gallet with a venus 188 movement. One of the screws mounting the movement to the case is missing. Does anyone know what size of screw these take and are they the same as the later valjoux 7750 movement? I believe the part number is 5101 and I think the screws are tap 10 (0.9mm). Any tips would be apprecaited!

Thanks,

Emily

[Emily]

Actually looking into it more I think the part number is 5166. It looks like it's shared across many movements but I'm still interested to know the screw dimensions if anyone has an idea! Thanks!

[Nucejoe]

Welcome to the forum.

Have you tried to source the screw from material houses?

Regards 

[Chopin]

From a Valjoux 7734: 2.79mm total length / 0.87mm thread diameter / 1.49mm head diameter

These are the screws that go into the case clamps that hold the movement.

Edited January 17, 2020 by Chopin

[Emily]

46 minutes ago, Chopin said:

From a Valjoux 7734: 2.79mm total length / 0.87mm thread diameter / 1.49mm head diameter

These are the screws that go into the case clamps that hold the movement.

Thank you!! exactly what I wanted to know