Help ID this horological tool?

[RodJB]

It is marked Dumont & Fils 25
What is it for? Cheers

 

[L. Vanice]

The handle portion of those tongs is a common one. The holding jaws were made in a number of shapes to suit more or less specialized jobs around a watch and jewelry shop. The sliding ring allows the tongs to be firmly clamped on the work so that the user could relax his grip or even lay the tool on the bench without losing the gripped part.

The part meant to be gripped in this tool might be identified from better pictures. One thought I have is it might hold a seconds hand with the hand inside the jaws while broaching the tube to fit its arbor. But I cannot tell from the pictures if the jaws have a suitable notch to hold the tube.

Larry

 

[RodJB]

The handle portion of those tongs is a common one. The holding jaws were made in a number of shapes to suit more or less specialized jobs around a watch and jewelry shop. The sliding ring allows the tongs to be firmly clamped on the work so that the user could relax his grip or even lay the tool on the bench without losing the gripped part.

The part meant to be gripped in this tool might be identified from better pictures. One thought I have is it might hold a seconds hand with the hand inside the jaws while broaching the tube to fit its arbor. But I cannot tell from the pictures if the jaws have a suitable notch to hold the tube.

Larry

 

[RodJB]

Hi Larry,
There are grooves in the jaws but I can’t seem to get decent pics…

 

[4thdimension]

According to their catalog the Dumont #25 plier is for the minute wheel stud. I’m unsure how they would work better than a pin vice but there you go.-Cort

 

[RodJB]

Cheers Cort!

 

[Dr. Jon]

I suspect this works a lot better than a pin vice. It gets a better grip because it is better ergonomics than tightening a collar in the limited grab space.