Diving watch

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Diving watches are watches that feature, as a minimum, a water resistance greater than 10 ATM, the equivilant of 300ft/100m. Some go as far as 2000ft+.

Diving watches can be analog or digital. Analog diving watches will often feature a rotating bezel, that allows for an easier reading of elapsed time from a specific point. This is used to compute the length of a dive. (See Tachymeter) The bezel can be turned so the wearer can align the zero on the bezel with the watch's seconds or minutes hand. After a period of time passes, you can read the elapsed time off the bezel. This saves you having to perform the subtraction that would be necessary if you used the watch's regular dial. It's also much easier to read this larger dial while underwater.

Digital dive watches usually performs this by use of a standard stop-watch function. Digital dive watches may also feature depth gauge, logging features and much more.

Many contemporary sports watches owe their design to diving watches.