A. Lange & Söhne Lange 1 Perpetual Calendar in 750 Pink Gold

With its precisely jumping calendar displays and the peripheral month ring, the LANGE 1 PERPETUAL CALENDAR delivers unique mechanical and conceptual solutions. The model version in pink gold features a grey dial crafted from solid silver.

Specifications

• Case material: 18-carat pink gold
• Case back: sapphire glass
• Case dimension: Case diameter: 41.9 mm
• Case thickness: 12.1 mm
• Water resistance: 3 bar
• Movement designation: L021.3
• Number of movement parts: 621
• Winding mechanism: Self-winding movement
• Power reserve: 50 hours Balance Frequency 21,600 semi-oscillations per hour (3.0 Hz) Functions Outsize date, day/night indicator, moon-phase display, day-of-week display, perpetual calendar Strap Alligator leather
• Buckle: 18-carat pink gold