18k yellow gold case with a brown alligator leather strap. Fixed bezel. Silver dial with gold-toned hands and Roman numeral and index hour markers. Dial Type: Analog. Date display at the 1 o'clock position. Two - 60 second and power reserve. Hand wind movement. Scratch resistant sapphire crystal. Case diameter: 41 mm. Case thickness: 9.5 mm. Round case shape. Functions: date, hour, minute, second, moon phase. Luxury watch style. Watch label: Made in Germany. A Lange and Sohne Grande Lange 1 Moon Phase 18K Yellow Gold Mens Watch 139.021.