Stainless steel case with a black leather strap. Fixed stainless steel bezel. Black dial with gunmetal hands and index hour markers. Arabic numeral appears at the 12 oclock position. Minute markers around the outer rim. Dial Type: Analog. Perpetual calendar. Three displays: month , day of the week and date. Small seconds sub-dial. ETA caliber G15.561 quartz movement. Scratch resistant sapphire crystal. Pull / push crown. Solid case back. Round case shape. Case size: 42 mm. Case thickness: 11.07 mm. Band width: 20 mm, band length: 8 inches. Deployment clasp with a push button release. Water resistant at 30 meters / 100 feet. Functions: month, date, day, hour, minute, second, perpetual calendar. Tradition Perpetual Calendar Series. Casual watch style. Watch label: Swiss Made. Item Variations: T063 637 16 057 00, T063-637-16-057-00, T063/637/16/057/00, T0636371605700. Tissot Tradition Perpetual Calendar Mens Watch T0636371605700.