Just for the fun of it; if your job was to go out and source a watch for military dive use, what would it be?
Try to stick roughly to the original MoD specs as much as possible (ish), so:
60 minute markers on bezel
For the sake of argument, let's forget fixed springbars and add costs under 500GBP
Please add why you think your choice is 'the one'
Remember it's function and affordability, not kudos and potential resale in 40yrs.