Officine Panerai

Can someone tell me the correct location of the serial number on the model 6152 case? I am buying parts from an old watch collector and the caseback does not have a serial number on it. Is it like the Rolex models where the number is between the lug area?... 

And the number can be very faint. Regards. Bill

The ref 6152 does have the serial number on the caseback. Cheers, Asi

Both answered my question. It must be a /1 because the number is not on the inside back and there is some indication of a number between the strap and the case. Cheers Todd

is engraved on the caseback. Cheers, Asi

Or is 6152 1 different than 6152/1? Please explain. Cheers Todd

reference 6152/1 - the reference number is engraved on the inner caseback. The serial number is engraved between the lugs at 6 o'clock: reference 6152 - both the ref number AND the serial are engraved on the inner caseback: Hope it's clear now. Cheers, As...  

I see what you mean now. So the 6152/1 says 6152 1 on the inside. I believe this is the same marking on the one i'm researching and the serial number is on the case side between the strap and the case. Thank you again for the insight. Cheers Todd