The DEEP BLUE 3000m DEPTHMASTER is one of the few deep divers that is fully ISO 6425 for a professional diver's watch, which means that each watch must be subjected to a 125% pressure test, so that the 3000m DEPTHMASTER watches should be water-resistant to 3'750 meters or possibly more.
DEEP BLUE have not given me any details of how their watches were tested, but if they meet with ISO regulations then that's certainly good enough and should allay any fears or doubt anyone has about the watch's extreme performance ;)
Personally, I would still be very interested to see some more details of the testing that the watches underwent. I will soon be posting something on the pressure testing of DELMA's new 3000m diver.
On another note, DEEP BLUE's decision to use the new Miyota 9015 for the 3000m DEPTHMASTER was not based purely on cost, but on size. The use of the 9015 meant that the 3000m DEPTHMASTER was able to shave 3mm off the thickness of its case. If an ETA 2824 had been used instead, the watch would have measured 23.5mm thick!
Finally expect to see a wide choice of dial colors available soon . . .