18kt white gold case with polished top and brushed finished case sides. Black dial. Applied polished white gold hour markers in a combination of Roman Numerals and diamond shaped indexes. Polished white gold hands, the hour, minutes and power reserve hands with luminous fill. Time dial offset to the left side of the main dial. Small seconds sub-dial located a the bottom right corner of the dial. Double window date display located at the the top right side of the dial, with a quick date-correction button located on the case edge at the 10 o’clock position. Power reserve (Up/Down) Indicator located at the 3 o’clock position. Moonphase and Day/Night aperture at the center of the seconds sub-dial. Polished white gold moon depicts the current phases of the moon. An integrated day/night indicator behind the moonphase display showing a dark blue hue with stars for night and a lighter shade blue for day. A. Lange & Sohne Caliber L121.3 beats at 21,600 vph, with 47 jewels. A power reserve of 72 hours (3 days) thanks to twin spring barrels.