A. Lange & Söhne Lange 1 Perpetual Calendar 345.036E Platinum Black Dial (2026)

The Lange 1 Perpetual Calendar 345.036E in Platinum with a Black dial joined the model in 2023, two years after A. Lange & Söhne launched it in Rose Gold and a limited White Gold edition. Its perpetual calendar sits inside the Lange 1's asymmetric layout by way of a ring around the dial's edge that shows the month, and every calendar display advances instantly, so the change at midnight happens in a single step.

Against the Black dial of solid silver, the moon phase with its integrated day/night indicator stands out clearly, as does Lange's outsize date. A retrograde day of the week and a leap-year display complete the calendar, which needs no correction until 2100. The 41.9 mm Platinum case is 12.1 mm high and houses a self-winding movement. Recessed correctors on the Platinum case flank adjust individual displays. It comes on black alligator with a Platinum buckle.