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Omega Caliber 2211 Railmaster XXL

Omega Caliber 2211

Omega Caliber 2211 Railmaster XXL

Caliber Number2211
Movement TypeManual wind
Base CaliberETA Unitas 6498-2
Power Reserve53 hours
Vibrations Per Hour21,600
FeaturesSmall seconds
Country of ManufactureSwitzerland
Known Models231.

The large Omega caliber 2211 is found in the XXL Seamaster Aqua Terra Small Seconds (reference: This pocket watch movement is a manual wind with 17 jewels and a 53 hour power reserve. It is a certified chronometer (COSC). Based on a ETA Unitas 6498-2. The older and discontinued Railmaster XXL was equipped with essentially the same movement known as caliber 2201. The differences are cosmetic.

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Steve Tang
Steve Tang
6 years ago

Don’t some Panerai watches use this movement too?

Omega Aqua Terra XXL Small Seconds | KeepTheTime Video Reviews
4 years ago

[…] • MOVEMENT INFO • calibercorner.com/omega-caliber-2211/ […]

Fabio Giardina
Fabio Giardina
1 year ago

The Panerai Uses the 6897-2 calibers..

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