Roamer caliber MST 424 mechanical vintage watch movement

Roamer Caliber MST 424

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Roamer caliber MST 424 mechanical vintage 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.

Caliber submitted by wahawatches.com

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Chris Watch Collector
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Chris Watch Collector

I really like the stars on the larger gear (not sure what that’s called). It’s a shame that modern movements don’t have nice decorations like that.

Melvin Hollenberg
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That is the ratchet wheel, on top of the main barrel. Nowadays, most movements have to be produced as fast and cheap as possible. No time and budget for fancy decorations 😉
Higher end watches do still have beautifully (in-house) finished movements, though.

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[…] Roamer dress watch didn’t run and the crystal was in a pretty bad shape. The movement is an MST 424, hand winder with 17 jewels. I suspected there was a problem with the endshake of the pallets or […]

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