What exactly is it that makes so many people "cringe" about getting a speedmaster wet.
Because there is a ton of misinformation about what a watch with 50 meters of water resistance, that the Speedmaster Pro has, really means. If you read various articles, internet experts, and forums, they will tell you over and over again that it's only good for splashes or being out in the rain...maybe. If you listen to Omega (you know the people who made the watch) it's clear that 50 m depth rating means it can go to 50 m.
Someone will jump in with the "dynamic pressure" argument about moving your arms under water adding more pressure, but it's been debunked with real actual math. The added pressure is minimal, and unless you are Aquaman the speed your arm would have to move isn't possible.
If the watch is properly maintained, which includes regular pressure testing and changing of the seals, it will be water resistant. Of course someone can point to examples where watches have failed, but all watches can fail and leak.
That brings me to the corollary of the general advice given that you need a real diver just to get the watch wet, and that's the idea that because it's rated for 300/600/1000 m depth rating, it will "never leak" even if I don't take care of it.
Yes freak things can happen, but if you use your head there's no huge risk. But using it under water or not is a personal decision, and if people decide not to, I have no problems with that. However when people make false claims about the capability, that's not cool.
The number 1 cause of watches leaking is lack of proper maintenance. Anyone who tells you any different is either lying or doesn't have a clue what they are talking about.
Cheers, Al