Excellent timekeeping
The watch keeps excellent time. I also own a Citizen with the radio signal timekeeping feature. This Divers watch is no more than 1-2 seconds different from that watch, each month. It is water resistant for the pool swimming and showering I subject it too. I've little doubt it could handle snorkeling and recreational scuba diving, though LOL at the helium purge feature. The lume is much greater than my other Citizen watch. Watch size is huge. It's not light either. I need to stop being weak, I guess. The rotating bezel needs a lock. It is easy to inadvertently bump forward a click. Still, I used the bezel to keep track of someone's bottom time, and thereby noticed when they had blacked out. They're alive and well today, so this watch helped me save a life. I'm glad I bought this watch, and I unhesitatingly recommend it.