MST 366


MST 366


The MST caliber 366, which was used in Roamer watches is a ladies’ form movement of decent quality. It uses seventeen jewels, a screw balance (not shock protected) and a regulator with a long arm.

The angeled plates, the stripe decoration and the indicated chatons add a very nice appearance, and this is something, which is not too common on those tiny ladies’ form movements.

MST 366 dial side

MST 366 dial side

Technical data

Number of jewels:17
Escapement:Pallet lever
Balance types: Nickel screw balance
Shock protection(s): none
Balance bearing / direction hairspring:Counterclockwise
Moveable stud:no
Adjust mechanism:Long regulator arm
  • lever
  • escape wheel, seconds wheel, third wheel, center minute wheel
  • mainspring barrel
Winding mechanism:yoke winding system
Setting lever spring:3 hole(s)
Functions:hour, minute
Size:5 3/4 x 6 3/4'''
Literature: Flume: 1949 II 85

Usage gallery

Roamer ladies' watch  (dial only)

Roamer ladies' watch (dial only)

related movements