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A. Lange & Sohne

A. Lange & Sohne Datograph Up Down 41mm 405.031

A. Lange & Sohne Datograph Up Down 41mm 405.031


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Condition New/Unworn
Case Shape Round
Case Dimensions 41mm
Case Thickness 13.1mm
Case Material 18kt Rose Gold
Dial Color Black
Crystal Scratch Resistant Sapphire
Bezel Fixed
Screw-in Crown No
Case Back Transparent
Band Material Alligator/Crocodile Leather
Color/Finish Brown
Clasp Tang Buckle
Movement Manual Wind
Complications Chronograph
  • Polished 18kt rose gold case with a fine satin finished case band (edge).
  • Polished 18kt rose gold chronograph & date buttons with a fine satin finished top.
  • Matte black dial with silver colored sub-dials which are finished with a very fine concentric circle pattern texture.
  • Polished rose gold hour & minute hands with luminous fill.
  • Applied polished rose gold index hour markers.
  • Fine white printed minute, seconds & fractions of a second chapter ring.
  • Tachymetre scale printed on the dial perimeter.
  • Large double window date display located at the top of the dial with quick correction button located on the case edge at the 10 o'clock position.
  • Small seconds sub-dial with a blued steel hand located between the 7 & 9 o'clock position.
  • Chronograph/Stopwatch Functions
    • Flyback complication allows for instant restarting of the chronograph with a single push of the button instead of the need to stop, reset & restart the stop-watch.
    • Large polished rose gold central seconds counter hand.
    • 30 minutes counter sub-dial with blued steel hand located between the 3 & 5 o'clock position.
    • Furthermore the minute counter hand of the chronograph jumps in 1 minute increments rather than continuously moving - this allows for accurate reading of the timing function.
  • Power reserve indicator: small AUF/AB (Up/Down) power reserve indicator located just above the 6 o'clock position with a polished white gold triangle hand.
  • A. Lange & Sohne Caliber L951.6, beats at 18,000 vph, composed out of 451 parts, contains 46 Jewels & has an approximate power reserve of 60 hours.
  • Each part & component of this movement has been meticulously & lavishly finished with extremely detailed handwork. The movement is mesmerizing & beautiful!

Alternate model # 405031

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