Vintage 1960s Seamaster Deville automatic help

So I have a Seamaster that I got from my grandpa, it looks like a normal 60s Seamaster Deville however the band is completely attached to the watch. I haven't been able to find more like this, I'm looking for help identifying the price, model number (whatever number that will give me an exact link back to this watch that has the band attached), and where I can find sellers selling this exact one or similar with the band attached. Another thing that I'm trying to find out is how much would it be to get a crown replacement.

Here is some information on it:
My grandpa foolishly got the band shortened on it and it was done poorly. If you look closely at the band close to where it connects to the watch at the top of it you can see its slightly crooked.
On the bottom of it is an engraving of personally identifying information so I will cross it out in the photos, there is no number on the bottom of it.
At some point in the past it looks like the crown of it has been replaced.
The band is 14K gold
It still fully works

Thanks for your reply, by any chance could you name the style of bracelet? I've never seen one like it, it'll help with narrowing the search down. Thanks so much 😁

I'm trying to find more for my 2 sons, trying to find something similar to this.