A. Lange & Söhne Richard Lange Perpetual Calendar “Terraluna”
Movement
Manually wound
Size
45.5 mm

Overview

The Richard Lange Perpetual Calendar “Terraluna” in a 45.5 mm case

The A. Lange & Söhne Richard Lange Perpetual Calendar “Terraluna”, reference 180.032FE, in an 18-carat pink gold case, 45.5 mm across and 16.5 mm high, with an argenté dial. Manually wound calibre L096.1 with perpetual calendar and moon-phase display, on a brown alligator leather strap with a pink gold deployant buckle.

Lange describes this watch as having two distinct faces. On the dial it follows the regulator layout of high-precision scientific clocks; on the movement side it shows an orbital moon-phase display.

The movement is calibre L096.1, manually wound, with 787 parts, a reserve of 336 hours and a balance beating at 21,600 semi-oscillations an hour (3.0 Hz). Lange lists seven functions, from the perpetual calendar to the constant-force escapement. The case is 16.5 mm high, water resistant to 3 bar, with a sapphire glass case back. The strap is alligator leather, closed with a deployant buckle in the case metal.

Key details

Case material18-carat pink gold
MovementL096.1, manually wound
CollectionRichard Lange

Design and engineering

  • DialAn argenté dial in solid silver, in the regulator layout Lange describes for the model.
  • Moon-phase displayLange places the orbital moon-phase display on the movement side of the watch.
  • Perpetual calendarListed with the outsize date, the day-of-week display and the day/night indicator among the functions of calibre L096.1.
  • Constant-force escapementNamed by Lange as a function of calibre L096.1.
  • Case18-carat pink gold, 45.5 mm across and 16.5 mm high, with a sapphire glass case back and water resistance of 3 bar.
  • Strap and buckleBrown alligator leather, closed with an 18-carat pink gold deployant buckle.

Calibre L096.1

  • Manually wound
  • Outsize date, power-reserve indicator, day/night indicator, moon-phase display, constant-force escapement, day-of-week display and perpetual calendar
  • 787 parts
  • 21,600 semi-oscillations per hour (3.0 Hz)
  • Power reserve 336 hours

The reference

Technical specifications

Richard Lange Perpetual Calendar “Terraluna”
Reference180.032FE
CollectionRichard Lange
CalibreL096.1
MovementManually wound
FunctionsOutsize date, power-reserve indicator, day/night indicator, moon-phase display, constant-force escapement, day-of-week display, perpetual calendar
Power reserve336 hours
Frequency21,600 semi-oscillations per hour (3.0 Hz)
Movement parts787
Case dimensions45.5 mm
Case height16.5 mm
Case material18-carat pink gold
Case backSapphire glass
Water resistance3 bar
DialArgenté
StrapBrown alligator leather
Clasp18-carat pink gold deployant buckle

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Richard Lange Perpetual Calendar “Terraluna” · Ref. 180.032FE

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