Father-in-Law’s Seamaster

2577s had that too, see bottom left:


Case will be 14k or 18k solid gold, movement a cal 351 or 354 „bumper“ automatic. The dial has been refinished, the lume reapplied.

What is it you want to know exactly @Retiredscpd ?

Early to mid-50s. Heritage: First-ever Seamaster reference by Omega. It’s the longest standing model line from them, produced to this day.

They aren’t particularly rare in general, as millions were produced.

Unfortunately, @Dan S is completely right regarding value: The fact that the dial was refinished means the value is about gold value plus whatever the parts are worth.
If I remember correctly, the case is about 22g. Have a watchmaker open the case and on the inside of the case back you’ll find if it’s 14k or 18k. Google current gold prices, do the math.
Then there’s about 200-300$ or so in the hand set, the movement etc.

If you want to sell it, just put it on eBay no reserve and let the market do its thing. It will not sell for less than gold value.

If you’re looking to sell the watch, I’d suggest getting a watchmaker to remove the movement from the case (a quick job), do some research to find a local gold buyer that offers the highest $/gram rate for scrap gold and then sell the movement/dial locally. A lot of potential bidders on eBay or other platforms will underestimate the gold content of this model and I think you’ll be lucky to get scrap gold value after eBay/PP take their cut. Selling on eBay can also be a pain for a variety of reasons.