With this watch - it has a moon-phase display computed to remain accurate for 1000 years - Lange pays tribute to one of the most creative members of the dynasty: Emil Lange. The edition of the 1815 MOONPHASE was limited to 150 watches in platinum and 250 in pink gold.

	Model in 18-carat pink gold Reference 231.031. Edition: 250 watches. Movement: Calibre L943.1. Manually wound. Moon-phase display. Small second with stop seconds. Dial: Solid silver, black. Case: Diameter: 35.9 mm. Height: 7.5 mm. Sapphire-crystal glass and caseback. Hand-stitched crocodile strap. Model in platinum Reference 231.035. Edition: 150 watches. Movement: Calibre L943.1. Manually wound. Moon-phase display. Small second with stop seconds. Dial: Solid silver, black. Case: Diameter: 35.9 mm. Height: 7.5 mm. Sapphire-crystal glass and caseback. Hand-stitched crocodile strap.