Roamer caliber MST 424 mechanical vintage watch movement

Roamer Caliber MST 424

Roamer caliber MST 424 mechanical vintage watch movement

Caliber NumberMST 424
Movement TypeMechanical, manual-wind
Vibrations Per Hour18,000 bph, 4Hz
Power Reserve47 hours
Lift Angle49
Shock AbsorberIncabloc
FunctionsHours, minutes, small seconds
Country of ManufactureSwitzerland
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

You are reading Caliber Corner, the most popular resource for watch movement pics, specs, mods and DIY repairs. Follow @calibercorner on Twitter, Instagram but NOT Facebook. Subscribe on the YouTube. Join our mission to spread movement awareness (currently invitation only while beta testing, check back for sign-up link).
What do you think about Roamer Caliber MST 424? Keep comments respectful and follow our community guidelines.
Notify of

newest most voted
Inline Feedbacks
View all comments
Chris Watch Collector
Chris Watch Collector
6 years ago

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
Melvin Hollenberg
5 years ago

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.

Restoration: Roamer Dress watch - WahaWatches
5 years ago

[…] 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 […]

2 years ago

Reminds me of the AS 1925/ 1926. Hmmm.

Venus Caliber 178
Would love your thoughts, please comment.x