Tag watch

[HEAVYD]

I found a Tag watch at a local 2nd hand shop . The watch looks authentic  ( double  row serial no) F1 range.Box including...product register card not filled in.
Is there anyway of verification of the serial number .

 

[JuggyUK]

 

[dkronie]

 

[Gerlach]

 

[Drifter]

 

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[Gerlach]

 

[HEAVYD]

 

[milesgopal]

 

[JonnyP]

 

[HEAVYD]