Case Material: 950 Platinum Case Size: 38.5mm Dial: Solid silver with an elegant argenté (silver-white) finish, featuring applied Roman numerals and rhodiumed gold hands Strap: Hand-stitched black alligator leather strap with platinum tang buckle Movement: Automatic winding, in-house Lange calibre L922.1 SAX-0-MAT Functions: Hours, minutes, small seconds with stop function Perpetual calendar: day, date, month, leap year Moon phase display Zero-reset mechanism (seconds hand resets when crown is pulled) Power Reserve: Approx. 46 hours Crystal: Scratch-resistant sapphire crystal (front and exhibition caseback) Water Resistance: 30 meters Reference Number: 310.025 Special Features: First automatic perpetual calendar from A. Lange & Söhne The SAX-0-MAT movement includes a zero-reset function for precise time setting Perpetual calendar is pre-programmed until the year 2100 Moon phase accurate to 122.6 years Masterfully hand-finished movement with classic Glashütte elements: three-quarter plate, blued screws, gold chatons, and hand-engraved balance cock
