Means that the clock is supposed to be able to be submerged to a depth of 30 meters w/o taking in water.
Chat with our AI personalities
"3 ATM" on a watch is a pressure rating for 3 atmospheres (a unit of pressure equivalent to three times Earth's atmosphere) which is roughly equivalent to 30 meters (~100 feet) of water resistance (though most manufacturers will not recommend you swim or dive with it at all)
It means to take the number like 24 and round it to the closest ten which is 20 not 30. BTW watch your english Hope This Helps! :)
30
If you mean 30% of 78 then it is 23.4
Probably 'between 20 and 30.'