Omega seamaster possibley fake can you help

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Hi folks

Omega seamaster all seems genuine

Until the movement which says 8 jewel 4563 but cannot find any details about it

Watch case has 1430 on it
 
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I think the 4563 movement was a replacement for the 1430 when that was discontinued. Suspect it was replaced during a service at some point
 
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As @Gav1967 noted, the movement is a modern replacement for the discontinued 1430, so not a fake watch.
If it had been serviced by Omega, they would have used that caliber.
 
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Real and as noted service movement.
 
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Many thanks folks

Just couldnt find any details or matches to this movement

Any idea im looking for stem replacement