Roamer Caliber MST 424 Watch Movement

Manufacturer	Roamer
Caliber Number	MST 424
Movement Type	Mechanical, manual-wind
Vibrations Per Hour	18,000 bph, 4Hz
Jewels	17
Power Reserve	47 hours
Diameter	12.5”’
Lift Angle	49
Height	3.35mm
Hacking	Unknown
Hairspring	Flat
Shock Absorber	Incabloc
Functions	Hours, minutes, small seconds
Country of Manufacture	Switzerland
Known Models	Vintage 1950’s manual wind

The Roamer caliber MST 424 was produced in the 1950’s in Solothurn, Switzerland.

Roamer Watch Company was founded in 1888 and watches are still being made under the Roamer name. The letters MST come from the initials of the founders. They established the Meyer & Studeli movement factory in 1905 and by 1952 they were making watches fully in-house with the name Roamer. On the caliber above, the MST stamp is partially visible behind the balance wheel.