The 5th Element watch by Nixon features a 42mm stainless steal case with hardened mineral crystal, 21-19 mm tapered solid stainless-steel 3 link bracelet with double locking clasp, and a dual split window case back.The unique two-piece design eliminates the need for a traditional case back, while the split window gives a view of the inner workings of the automatic movement and the custom crystal shape flows seamlessly into the case with angled edges. Premium Miyota 8215 Japanese Automatic movement, twenty-One jewel three hand with date function, and an unidirectional tungsten fly wheel winding system with a 40-hour power reserve complete the package. Tested waterproof to 100 meter/10 ATM (good for all water sports except diving).