Help IDing a watch

Welcome to OF, and condolences for your loss. No apologies necessary, we like large in focus images as it helps us to ID. I'm no expert on these, but it looks like you have an honest Seamaster from the 50's or 60's would be my guess. The information that will be most helpful in ID-ing the watch will be on the inside of the case back. That will tell you the reference, and while you're at it, you can gather the movement number from the movement. If you are not comfortable opening it, I'd suggest finding a watchmaker near you that can assist. They can also provide an estimate for the cost of a service, which would be recommended, as the lubricants in the movement dry up and get gummy over time. Seeing this is a sentimental piece, it's worth getting it serviced by an independent watchmaker with an Omega parts account. If you let us know your general location, we might be able to recommend a watchmaker in your area.

You can also use the search function to dig in to previous posts on vintage Seamasters. You'll learn a lot, and get a good feel for the community while researching.

Ref 14775 would be the hand wind version, likely what OPs watch is.