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A. Lange & Söhne

Datograph Perpetual

Case material
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Bracelet strap
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Buckle
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Movement
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Reference
N/A
Collection
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Description

Reference 410.025, Lange movement: Calibre L952.1, manually wound. Flyback chronograph with precisely jumping minute counter as well as perpetual calendar with outsize date, moon-phase display, day-of-week, month, leap-year display, small seconds hand with stop seconds, and day/night indicator. Plates and bridges made of untreated German silver, balance cock engraved by hand. Three-part platinum case with anti-reflection-coated sapphire-crystal glass and caseback, main push piece for simultaneously advancing all calendar displays as well as recessed push pieces for separately advancing the calendar displays; two chronograph push pieces. Hand-stitched crocodile strap with solid-platinum buckle. Dial: two-part, made of solid silver, rhodié, luminous, tachometer scale.