Momentum Women's ZZX-SP99W Alter Ego Twist'n'Click Top Ring Watch The Momentum Alter Ego Twist'n'Click watch features interchangeable bezel rings in a varitey of colors to suit any look or mood. Quartz movement with analog display Mineral crystal dial window Features include a solid aluminum case, user-changeable Twist'n'Click bezel ring, and a luminous dial Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving