patrick_b
Distinguished Member
- Joined
- Aug 13, 2007
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Not a lot of soap in the ocean...
Seriously though, I believe the running theory is that soap, along with steam, can deteriorate the seals, leaving the ocean an opening. Not sure how true it is, but similarly, if you are using your Sub in seawater regularly, you do need to be a good boy and at least get your watch pressure tested somewhat regularly. Those seals don't last forever, especially if they've been put to use.
I typically get mine pressure tested every year for a diver and every other year for the GMT. We have a pool and live near the ocean so I my watches have always seen a fair amount of water. The 100M test can be done while I wait and takes 10-15 min. The 300M requires that I leave it overnight. Most years, I'd just do the 100M test. If it passes I feel fine swimming with it. No hot tubs or showers for my watches either.
One year my GMTII didn't pass the pressure test. That's when I elected to send it in for service. I tend to wait until they aren't working properly (losing or gaining time) or they fail the pressure test before I send it in for service. It was year 8 of ownership for reference.