Water resistance

Equivalent pressure to static pressure at that depth of water. 30 or 50m are fine for any sane person, but the bulk of watch nerds are dunkers who compulsively go around submerging their watches just because. And they love that oneupsmanship about meaningless specs they'll never use.

You absolutely nailed it!! And don't you dare get a drop of rain on anything less than 30m. You might as well burn the watch with your wrist still in the band.

All kinding aside, I don't know why people get upset by low water resistance. The watch world went insane when they found out the new 5KX didn't have a screw down crown and had a showcase caseback. I'm pretty sure we could count on one hand (ok maybe 3 or 4) the amount of people in WC who actually use their SKX as a true dive watch. I will never dive to anywhere neer the limit of any watch I own.

By the way, I was being sarcastic in my first paragraph. In case anyone didn't read it that way.

I did some quick checking, and a 30wr watch could theoretically be compromised by household watermain services at 50psi, as 30m(3 ATM) is only 44psi. That said, I doubt anyone's kitchen/bathroom faucet is actually putting out 50psi...

I suspect the silliness of "don't wash your hands with a 30m WR watch" partly came from someone gaming a worst case scenario based on the pressure at the house main service line, and partly because most 30m WR watches come on leather straps.

🤔 true

Keeping water out is only as good as the seals doing it and they have a short life span. 6 years max and that is why they recomend service at 5 years.

30m is fine, unless you are saturation diving or riding a torpedo....lol

Provided crown is down, and seals are good.

It means what it says no matter the depth rating. At least at the time of testing...

The trouble is a combination of ignorance on watch media's part and worst case calculations. In theory I can probably generate 3 bar of dynamic pressure if I slam my arm into the water, neglecting that dynamic pressure doesn't do well around corners and assuming it hits at the weakest seal the watch is deemed not swimmable. Influencers take this as 30m doesn't mean 30m...

The real trouble with 30m rated watches is that they probably aren't put together very well in regard to their seals. Getting a watch 10bar tight is easy these days, if a manufacturer doesn't do it then corners were cut and who knows how long past the time of testing it will remain waterproof to even 30cm...

I love how riding a torpedo and saturation diving are given seemingly equal likelihood of happening 😀

You never know.....🤪