Perhaps one of the most charming watches on this list and one of the more popular items available from our shop - the Oris Divers Sixty-Five is a great example of a brand updating a classic design with modern materials and manufacturing techniques; replacing a coated brass casing with stainless steel, and a plexiglass crystal with a more modern sapphire crystal.
Omegas offering for a tough diving watch with a chronograph function comes in the form of this Planet Ocean 600m Co-Axial Chronograph. In order to appeal to a large number of audiences the watch is available in a few different colour options, strap types, and even includes a couple of variants set with a ring of 42 diamonds, constructed from titanium, or an 18kt rose gold case option - which weighs in at just over £20K (at the current RRP).
Cartier's dive watch may be a tool watch - but it's a very sophisticated one at that. The Calibre de Cartier Diver is a capable dive watch whilst simultaneously looking great with more dressy appearance compared to its competitors.
If for whatever reason you don't want a Rolex then take a look at the Blancpain Fifty Fathoms Bathyscaphe. It's water resistant to the usual 300m, is a more comfortable 43mm wide (and 13.40mm deep) and even includes a transparent case back, which is a feature less often found on dive watches; though, this may be due to the increased thickness they give a watches case, the perceived weakness that they give and the additional cost involved.