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Patek Philippe · Aquanaut
An Advanced Research piece, which is the series Patek uses to put experimental mechanisms into a small run of real watches rather than a display case. The time-zone adjustment here runs on a compliant mechanism — a single flexible blade that bends instead of a jointed assembly that pivots. No pivots means no friction and nothing to lubricate, which is the point.
The 5650G was produced from 2017 to 2017.
The Patek Philippe 5650G runs the Cal. 324 S C FUS, 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 Patek Philippe? Look up its serial number in the registry.