A. Lange & Söhne Grand Lange 1 Moon Phase 139.021 Yellow Gold Ivory Dial (2026)

The Grand Lange 1 Moon Phase 139.021 is fully focused on its complication: A. Lange & Söhne places the moon within the hour and minute circle, where it can be shown large against a starry sky rather than confined to a small aperture. In Yellow Gold with an ivory-toned silver dial, this version gives the 41 mm Grand Lange 1 its most traditional colors. The Grand Lange 1 is the larger expression of the asymmetric watch that opened Lange's modern era in 1994.

The dial of solid silver in ivory tone carries Yellow Gold markers and hands, Lange's outsize date at upper right and a power-reserve indicator, with the moon disc turning inside the main time circle. The case measures 41 mm by 9.5 mm, and the hand-wound movement is on view through the sapphire caseback. It comes on a medium brown alligator strap with a Yellow Gold prong buckle.