Seiko Men's Auto Relay Premier Kinetic Perpetual Calendar Watch . Approximate Case: 43 mm x 12 mm thickness ( including crown ). Dial: Silver White. Sapphire crystal. Water resistant 100 meters or 10bar. Movement made in Japan. Caliber: Seiko 7D48 Quartz. Gold Plated stainless steel. Metal: Two tone. Combining Seiko Kinetics unique Time Relay technology with a four-year sleep mode and a perpetual calendar correct until the year 2100. 101 parts of mechanical gear trains of the perpetual calendar enable the movement of the date, day, month and year including February in a leap year. Powered only by the worlds smallest ultra-sonic motor, 0.4 mm thick. Premier Kinetic Perpetual is an all-new movement with 232 parts within an all-new Seiko design. # SNP004P1 SNP004 #.