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Omega · Speedmaster
The Moonwatch as sold for most of the 1990s and 2000s: hesalite crystal, solid caseback, calibre 1861, hand-wound. Omega deliberately kept the acrylic crystal because that is what NASA qualified — it crazes rather than shattering into fragments in a capsule.
The 3570.50 was produced from 1996 to 2015.
The Omega 3570.50 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.