3 Atm?

[golders]

My watch says:

Water Resistant 3 ATM what exactly does this mean?

I am lost!

[seb]

3 atmospheres

1 atmosphere = 100 kPa = 100 kNm^2 = 14.5 PSI etc.

I'm not sure on my sums but I think it means it'll resist water to a depth of about 30m or so, which should be plenty ;)

[Dave_S]

But the thing they never mention is the fact that when you're swimming with the watch on, pushing your arm through the water at a depth of about 2m is prolly more than that anyhow :rolleyes:

Dave

[Thuvir]

Originally posted by Dave_S
But the thing they never mention is the fact that when you're swimming with the watch on, pushing your arm through the water at a depth of about 2m is prolly more than that anyhow :rolleyes:

Dave

A prize to that man !

3 atm = 3 atmospheres = 20 meters underwater (not 30).

But - the rating on the watch is static not dynamic as Dave-S intimates. I might use a 3atm (20m) rated watch for doing the dishwashing, but only maybe !

If you want to go swimming use at least 50m rated = 6 atm.

And if you want to be picky

1 atm = 14.695 psi = 1.01325 bar

(so says my convert software)

[seb]

I alwyas thought bar/atm were the same thing?

[Thuvir]

Originally posted by seb
I alwyas thought bar/atm were the same thing?

so did i which was why i was suprised at the conversion software on my pc.