he particular dial design accounts for the unmistakable appearance of the LANGE 1. Graced with Roman numerals and lancet-shaped appliques, the large hour and minute circle is located on the left-hand side while the outsize date, the power-reserve display and the subsidiary seconds dial are positioned on the right-hand side, along an imaginary vertical axis. The proportions of the different displays are in accordance with the rules of the golden ratio, creating an aesthetic balance that exudes timelessness, even three decades after its debut. Highlights: Case dimension: Case diameter: 38.5 mm Case thickness: 10 mm Winding mechanism: Manually wound movement Power reserve 72 hours Functions Outsize date, power-reserve indicator