a) 99.9% of all dives happening today are going to be <18m which is the maximum depth for PADI Open Water certified divers. And then Advanced certified is still

a) 99.9% of all dives happening today are going to be <18m which is the maximum depth for PADI Open Water certified divers. And then Advanced certified is still <30m. b) The point of a dive watch is not just to tell the time. You need to know the depth, time spent underwater, no decompression limits, safety stops etc. c) Not that I was able to test since the crown is disabled but the Apple Watch crown is very easy to use water even with gloves.