Longines Master Collection Retrograde Annual Calendar Watch - 44 mm Steel Case - Silver Barleycorn Roman Dial - Bracelet - L2.739.4.71.644. 00 mm stainless steel case, transparent sapphire crystal back, scratch resistant sapphire crystal, silver barleycorn dial with painted Roman numerals, caliber L707 automatic movement with hours, minutes, retrograde hand displays: day at 12 o'clock, date on the right hand side of the dial, small second at 6 o'clock, and 24 hours second time zone on the left hand side of the dial, moonphase display at 6 oclock and day night indicator at 12,