MST 6 | - The Movement Archive



The 18 ligne cylinder movement MST 6 dates probably from the 1920, is partially already modern constructed, but in other details hopelessly outdated.

MST 6: base plate

base plate

You’ll hardly find any jewels on this simple pillar movement, as there’s only one single ruby used, at the position, where it is the best visible, as cap jewel for the upper balance wheel bearing.

All other pivots are beared in simple drillings in the brass plate.

MST 6: gear train

gear train

The gear train is that of a cylinder movement, which was in the 1920s very much outdated.
It consists of the mainspring barrel, center minute wheel, third wheel, seconds wheel at 6 o’clock and finally the cylinder wheel made of steel.

MST 6: side view of the gear train

side view of the gear train

We have the common three-leg screw-less anular balance, not shock protected, which most probably beats with 18000 A/h.

Át least, there’s a little decoration of the balance wheel cock, as well as a scale for the long regulator arm, with which you can adjust the effective length of the hairspring to adjust the beating rate as good as possible.

MST 6: MST 6: Dial side

MST 6: Dial side

On the dial side, you see the pretty modern rocking bar keyless works with crown switch and a well executed ratchet.

Unfortunately, there’s no ruby bearing or cap jewel for the balance wheel, only a simple drilling and instead of the cap jewel, there’s a metal plate.

Technical data

Size:18''' (measured: 40,5mm)
Number of jewels:1
Balance types: monometallic anular balance (three legs)
Shock protection(s): none
Balance bearing / direction hairspring:Counterclockwise
Moveable stud:no
Adjust mechanism:Long regulator arm
  • center second pinion
  • seconds wheel, third wheel, center minute wheel
  • mainspring barrel
Construction type:pillar construction
Winding mechanism:rocking bar winding system
Setting lever spring:5 hole(s)
  • s (decentral seconds)
Inventory number:22064

Usage gallery

MST 6: Medana pocket watch

Medana pocket watch

This movement and watch is a kind donation from Marco Bublitz to the movement archive. Thank you very much for your great support!