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Omega · Speedmaster
311.30.42.30.01.005 is an Omega Speedmaster Moonwatch Professional reference, produced from 1996 to 2021 — an unusually long run of 25 years.
The case is 42mm stainless steel.
It runs the Cal. 1861, a manual movement.
Catalogued dial colour: black.
It is the 12th of 20 Speedmaster references in the catalogue by production start.
The hesalite Moonwatch — the closest thing to the watch NASA qualified in 1965, and the reference most people mean by 'the Speedmaster'.
The 311.30.42.30.01.005 was produced from 1996 to 2021.
The Omega 311.30.42.30.01.005 runs the Cal. 1861, a manual movement.
Look up the watch's serial number in the Watch Safe registry to see whether a record exists or a theft flag is attached. A registry search identifies records for a specific serial; it does not authenticate the watch. Authentication is performed in person by an independent expert authenticator, and Watch Safe records and publishes the result.
Checking a specific Omega? Look up its serial number in the registry.