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Movement:
- Lange manufacture calibre L034.1, manually wound, crafted to the highest Lange quality standards and assembled and decorated by hand; precision-adjusted in five positions; twin mainspring barrels; plates and bridges made of untreated German silver; balance cock engraved by hand
Movement parts
- 406
Jewels
- 61, including 1 transparent sapphire jewel
Screwed gold chatons
- 3 Chatons
Escapement
- Lever escapement
Balance
- Shock-resistant glucydur screw balance, Nivarox hairspring balance with a frequency of 21,600 semi-oscillations per hour, whiplash precision index adjuster with patented constant-force escapement
Power reserve
- 31 days (744 hours) when fully wound, with stopwork
Functions
- Time display in hours, minutes, small seconds, with stop seconds, outsize date, power-reserve indicator
Operating elements
- Winding key with integrated backstop ratchet and torque limiter, crown for setting the time, push piece for advancing the date display
Case dimensions
- Diameter: 45.9 millimetres; height: 15.9 millimetres
Glass and caseback
- Sapphire crystal (hardness 9)
Movement dimensions
- Diameter: 37.3 millimetres; height: 9.6 millimetres
Dial:
- Solid silver, argenté or Solid silver, rhodié
Strap:
- Hand-stitched red brown crocodile strap or Hand-stitched black crocodile strap
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