Model: Seiko Watch - Seiko Coutura Kinetic Perpetual Calendar Watch SNP017 Case material: Solid stainless steel case with screw down case back Case dimensions: 42mm (1 3/5") in diameter not including the crown; 14mm (3/5") in thickness Weight: 6.3 oz Movement: Seiko kinetic movement Crystal type: Highly scratch resistant sapphire crystal Crown: Screw down crown Water resistant: 100 meters Face color: Black Band type: Solid stainless steel watch band Band length: Will fit 5 1/2 - 8 1/4" wrist Additional features: Perpetual calendar feature: once set, the calendar automatically adjusts for odd and even months including February of leap years up to February 28, 2100; When the watch senses 24 hours of inactivity it puts itself into suspended animation (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; Subdial indicates the number of years since last leap year; Oversized dual date windows; 24 hour and 12 month subdials; Energy depletion forewarning function; Cabochon crown; Luminous hands and markers Warranty: 3 year manufacturer's warranty on all Seiko watches Items included: Owner's manual; Seiko watch warranty material