Being you father gave it to you there may be sentimental value. The caseback suggests a military connection. Others will comment in greater detail.
Welcome to the forum.
have fun
kfw
I think it’s pretty nice, especially the case which has survived far better than most. I think it’s the alloy version and they aren’t strong and often crack at the lugs like mine below. One thing to be carful about is that it seems to have had luminous dots applied on the dial. That’s a bit odd as the hands aren’t luminous, but more importantly it’s likely to be radium which is radioactive and shouldn’t be handled. I’d put it in a ziplock bag (or similar) between now and getting it serviced. Certainly don’t poke around with it too much or try and clean yourself.
If for any reason you decided to sell then there would be interest as the case is good.
Those hands are correct and original for that watch. If it once had luminous hands then they themselves would have been replaced. Also I think the dial isn’t the original one, although it is a replacement that the MoD would have done themselves. Nice watch anyway and worth getting serviced, and personally I might try and get the luminous material removed especially if you want to gift it to your grandsons.
