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Omega · Speedmaster
3539.50 is an Omega Speedmaster Reduced reference, produced from 1988 to 2009 — an unusually long run of 21 years.
The case is 39mm stainless steel.
It runs the Cal. 3220, an automatic movement.
Catalogued dial colour: silver / white.
It is the 10th of 20 Speedmaster references in the catalogue by production start.
The smaller automatic Speedmaster, on a modular chronograph rather than the Moonwatch's manual calibre.
The 3539.50 was produced from 1988 to 2009.
The Omega 3539.50 runs the Cal. 3220, an automatic 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.