"3 ATM water resistance" is the lowest water resistance rating that is certified, and generally even non smartwatches that receive this are recommended to be removed before washing your hands. This just means getting a couple rain drops on it won't destroy it immediately, absolutely useless.
The Titan S is a new smartwatch with a rugged, waterproof casing that houses a curved 2-inch display and a large battery. Other features include a flashlight and various health features.