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.
|Number of jewels:||17|
|Balance bearing / direction hairspring:||Counterclockwise|
|Adjust mechanism:||Long regulator arm|
|Winding mechanism:||yoke winding system|
|Setting lever spring:||3 hole(s)|
|Size:||5 3/4 x 6 3/4'''|
Flume: 1949 II 85|