A Lange & Sohne Datograph Perpetual Mens Wristwatch

Item number: 410.025

Brand: A Lange & Sohne

Style Number: 410.025

Also Called: 410025

Series: Datograph Perpetual

Style: Mens

Case: Platinum

Dial Color: Silver

Watch Bracelet / Strap: Leather - Black Crocodile with 7 perforations.

Watch Clasp: Platinum Tang Buckle. Hallmarked, engraved LANGE.

Movement: Manual Winding COSC

Engine: L952.1 (18,000 vph, 45 rubies)

Functions: Hours, Minutes, Chronograph, Perpetual calendar, Tachometer (on flange)

Watch Chronograph: 1/5 second flyback chronograph with jumping minute counter. The precise minute counter at 4 o'clock prevents misreadings of the minutes by jumping through one minute intervals. With a single press of the chrono flyback button, the chronograph is reset and instantly restarts. The chronograph is driven by a classic column wheel.

Crystal: Sapphire - Anti-reflective

Case Diameter: 41.0 mm

Case Thickness: 13.5 mm

Caseback: Transparent Exhibition Display Back secured by six screws with Hallmarks and Lange engravings

Bezel Material: Platinum

Bezel Function: Fixed

Mass: 153.1 g

Crown: Platinum, Fluted with A Lange Soehne engraving

Calendar: Perpetual calendar: large date, moon-phase, day-of-week, month, leap-year, day/night indicator

Power Reserve: 36-hour power reserve

Watch Bracelet Length: 8.5 inches

Watch Bracelet Width: 17.0 - 20.0 mm

Brand Information: A Lange & SohneA. Lange & Söhne was first established in 1845 by Adolph Lange in Glasshutte. The firm established itself as makers of distinctive and fine timepieces - its pocket watches were prized by European gentry. Following the Second World War, the factory was seized by what was then East Germany. Walter Lange, the company's heir fled. It was only after the German reunification in 1990, that the founder's great grandson, Walter Lange, began reviving the company. With funding from LMH, the newly reformed company set out to restore its fine watchmaking tradition. The company was sold to the luxury conglomerate Richemont in July 2000. Although its watch parts may be cut with exceptional precision by the most advanced computer-aided machine tools, they are still finished, decorated and engraved by the skilled hands of some of the world's finest watchmakers.