(55861) A. Lange & Sohne 310.025 Langematik Perpetual Calendar, 310025, Platinum on a strap with a Platinum Buckle, Automatic Caliber L922.1, Day, big date, month, moon phases, leap year, 24 Hour indicator, size: 38.5 mm, thickness: 11mm, display back, sapphire crystal, water resistant to 3 atm, Like New and complete with original A. Lange and Sohne Winding Box, and undated papers.

(50170) A. Lange & Sohne 310.026 Langematik Perpetual Calendar 310026, 18K white gold on a strap with an 18K white gold tang buckle, automatic A. Lange & Sohne Caliber L922.1, black dial with Roman numerals, day, big date, month, moon phases, leap year, 24-hour indicator, display back, sapphire crystal, water resistant to 3 atm, size: 38.5 mm, thickness: 11mm, like New with original winding box and certificate dated 2015. This watc...