Model: Seiko Watch - Seiko Coutura Kinetic Perpetual Watch SNP007 Case material: Solid stainless steel case with screw down case back Case dimensions: 44mm (1 3/4") in diameter not including the crown; 12.5mm (1/2") in thickness Weight: 5.9 oz Movement: Seiko kinetic movement - never needs a battery change Crystal type: Highly scratch resistant sapphire crystal Crown: Push and pull cabochon crown Water resistant: 100 meters Face color: Black Band type: Solid stainless steel band with fold over clasp with push button Band length: Will fit 5 3/4 - 8 1/4" wrist Additional features: Seiko kinetic perpetual movement once set, the calendar automatically adjusts for odd and even months including February 28,2100; When the watch senses 24 hours of inactivity it puts itself into sleep mode to conserve energy. The date continues to advance correctly while the watch is asleep. Wake it up with a few shakes of your wrist and it automatically resets itself to the correct time even if it's been asleep for up to 4 years; Window at 9:00 indicates the number of year since the last leap year; Big date display at 12:00; 24-hour and 12-month subdials; Energy depletion forewarning function: Luminous hands and markers Warranty: 3 year manufacturer's warranty on all Seiko watches Items included: Owner's manual, Seiko warranty material