Doxa watches were unique when introduced because the O-ring sealed crown (stem) unscrewed and either didn't have a shaft seal or the seal leaked Helium like a sieve. Rolex held the patent for the Helium relief valve so the Doxa was the only other dive watch the Navy could find that could be used for saturation diving. Unscrewing the stem seal was on the pre-decompression checklist.
The sea story about the watch crystal blowing out during HeO2 saturation decompression actually happened. The guy it happened to had the scar to prove it. It happened at EDU (the US Navy's Experimental Diving Unit) when it was in Washington DC.
The sea story about the watch crystal blowing out during HeO2 saturation decompression actually happened. The guy it happened to had the scar to prove it. It happened at EDU (the US Navy's Experimental Diving Unit) when it was in Washington DC.