Presented at Watches & Wonders 2026, the Saxonia Annual Calendar 331.026E brings A. Lange & Söhne's annual calendar down to 36 mm in White Gold, from the 38.5 mm of the earlier model, while keeping the case at 9.8 mm high. A redesigned self-winding movement made the smaller format possible, and the calendar handles months of 30 and 31 days on its own, needing correction only once a year. The earlier 38.5 mm model's micro-rotor gives way to a central rotor.

The Silver dial of solid silver places Lange's outsize date at 12 o'clock, the day of the week at 9, the month at 3 and the small seconds with moon phase at 6, the subdials recessed and finished with fine concentric decoration. Baton markers with pyramid-shaped ends and lancet hands match the White Gold case. Its Platinum rotor mass is visible through the sapphire caseback. It wears an alligator strap with a White Gold prong buckle.