MST ? | - The Movement Archive



Even in tiny ladies' watches there can be very good movements. An example is Roamer, who put into a very small watch of only 17.5mm diameter this, unfortuately not further identificable, movement.

This MST caliber measures only 15.6 x 12.8mm (~ 7 x 5 3/4 lignes), but contains many high quality parts: a large glucydur balance, an Incabloc shock protection, an adjustable hairspring stud and a regulator with a hand. The main plate contains golden beared jewels and the anchor wheel even runs in a Diafix jewel setting.

I am glad for all hints which can help to exactly identify this movement.

Technical data

Size:5 3/4 x 7'''
Number of jewels:17
Escapement:Pallet lever
Balance types: Glucydur anular balance
Shock protection(s): Incabloc
Balance bearing / direction hairspring:Counterclockwise
Moveable stud:yes
Adjust mechanism:Long regulator arm
  • lever
  • escape wheel, seconds wheel, third wheel, center minute wheel
  • mainspring barrel

Usage gallery

MST ?: Roamer ladies' watch

Roamer ladies' watch