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Tudor · Submariner
Known in the trade as the Snowflake.
The date-equipped Snowflake Submariner, offered with a blue dial as well as black — and the blue is Tudor's own idea rather than an inheritance, since Rolex was not doing a blue Submariner dial in this period. Tudor's position as the more affordable sibling let it take design risks Rolex would not.
The 9411 was produced from 1969 to 1976.
The Tudor 9411 runs the ETA 2784, 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 Tudor? Look up its serial number in the registry.