Seiko Men's Arctura Kinetic Perpetual Watch (Seiko 2006 New Model) . (Kinetic Watches are Seiko's latest and most technically advanced watches, which contain their own internal electrical generators--operated by natural wrist movements--making them independent of conventional storage batteries.). Approximate Case Thickness: 12mm. Approximate Case Diameter: 47mm (including crown). Integrated displays of date, month, leap year and 24 hour time. Time relay system preserves accurate time for up to 4 years. Kinetic power delivers quartz accuracy with no battery change. Perpetual Calendar, correct until February 28, 2100. Water resistant to 100 meters. Black dial. Sapphire crystal glass. Band: Black leather strap. Metal: Stainless Steel. Caliber: 7D46. Movement: Kinetic. Seiko Model: SNP011P2. # SNP011P2 SNP011 #.