Vintage Seamaster Identification

J_Suth · Jan 10, 2023

Hi there,

Here is a watch I inherited from my father. It is clearly in dire need of restoration.

I'd be interested if one of you could help identify what model of Seamaster this is? Also, what the 'IS' on the left hand side of the face means? I have not seen this elsewhere.

Thanks in advance for your help!

efauser · Jan 10, 2023

What are the numbers inside the case back?

X350 XJR · Jan 10, 2023

J_Suth
what the 'IS' on the left hand side of the face means

This is likely a corporate logo of some sort.

Photos of the case back, inside and out would help.

Vintage Seamaster Identification

J_Suth

efauser

X350 XJR

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