A.Lange & Söhne Lange 1 Tourbillon - Perpetual Calendar and Moonphase - 41.9 MM - White Gold - Grey Dial - 720.038FE

The LANGE 1 TOURBILLON PERPETUAL CALENDAR represents the pinnacle of complexity within the LANGE 1 family, featuring a tourbillon visible through its sapphire-crystal caseback. Presented in 18-carat white gold, this model boasts a grey dial crafted from solid silver, adding to its elegance. With dimensions of 41.9 mm diameter and 12.2 mm thickness, it houses the self-winding L082.1 movement, consisting of 624 parts and offering a power reserve of 50 hours with a balance frequency of 21,600 semi-oscillations per hour. Notable complications include an outsize date, calendar function, moon-phase display, tourbillon, day-of-week display, and day/night indicator, combining mechanical mastery with aesthetic sophistication.