MST ?
Description
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
| Manufacturer | MST |
| Caliber | ? |
| Number of jewels | 17 |
| Escapement | Anchor with pallets |
| Balance | Glucydur |
| Shock protection(s) | Incabloc |
| Balance cock direction | counterclockwise |
| Hairspring stud | moveable |
| Regulator type | Long regulator arm |
| Movement construction | Fork
Escapement wheel, Fourth wheel, Third wheel, Center wheel
Mainspring barrel |
| Functions | Hour, minute |
| Beats per hour | 18000 |
| Size | 53/4 x 7''' |
|
| Factsheet |
Usage gallery
