If you are into diving then you want something with a big case width and a serious water resistance. The usual 200m fashion divers watches, with say 40-42mm diameters are OK for a bit of snorkelling about of course and you can buy some micro brands, or even an Orient, for under £200.
But 600m depth is more like it and a 45mm case width also means you can see the watch in the darkness of some wreck you decided to explore because base jumping is not dangerous enough.
Good luck to ya we say. Here’s the word from Crafter Blue;
The Hyperion Ocean is built for professional saturation diving. It has a water-resistance to 600m/2000ft and featuring a helium escape valve. The outstanding hardware like Sapphire, robust coatings and the Swiss made 26 jewels Sellita SW200 movement encased with in an all-around soft iron shield fighting against magnetic disturbances guarantee a highest resilience as well as an outstanding quality.
You get all this for $600 ($680 for the blue dial variant) as there is a Sale on right now. Yes, there’s VAT on top, but still a very good price for a 600m watch we reckon.