Seiko Men’s SNP007 Coutura Kinetic Perpetual Watch

Kinetic movement; functions without a battery; powers Kinetically with the movement of your arm
Strong scratch resistant sapphire crystal
Case diameter: 44.4 mm
Stainless-steel case; black dial; date-month functions
Water resistant up to 330 feet (100 M) Powered by your body movement. No battery changes. When not in use, memory will keep time up to 4 yrs. With a few shakes, will automatically reset to correct time. Once set, calendar adjusts for odd/even months, including leap years up to Feb 2100 More »