Seiko Premier Perpetual Calendar SNQ147 SNQ147P1 SNQ147P Men's Watch The Seiko Premier Perpetual Calendar is free from the usual trouble budget watches give with setting and adjusting the date. The Perpetual Calendar leaves no chance for the miscalculations and runs flawlessly over years once you set it properly. This watch is smart enough to handle things on its own. Bottom line: A sophisticated watch that doesn't go overboard with its price! Features: Stainless Steel Case Stainless Steel Bracelet Quartz Movement Caliber: 6A32 Sapphire Crystal Black Dial Roman Numerals Perpetual Calendar Deployment Clasp 100M Water Resistance Approximate Case Diameter: 41.5mm Approximate Case Thicknes: 12mm