Very RARE Vintage 1960s Seamaster DeVille Omega Watch

This is a previously working men's wristwatch that is extremely rare and that I am now listing strictly for repair or parts. The watch used to run well and kept time reliably, but it has been sitting unused for a while. After taking it out of storage, I found that it no longer works. I am not a watch expert and have not attempted to open it, diagnose the issue, or make any repairs. It may be a simple fix for someone who knows what they’re doing—possibly just needing a cleaning, or other minor servicing. Cosmetic Condition: The watch shows normal signs of wear consistent with age and previous use. Please see all photos for a clear representation of its current physical condition, including the case, crystal, and band (if included). There may be scratches, scuffs, or other marks that come from age and handling. Please Note: The watch is being sold as non-working / for parts or repair. I cannot guarantee what the issue is or how easily it could be fixed. This is a final sale with NO RETURNS AT ALL FOR ANY REASON. By purchasing, you acknowledge that this watch is not currently running and you are buying it in as-is condition. Feel free to message me if you have questions. Again, this is a non-functional item being sold for repair, parts, or restoration.