Lange 31/en

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Lange 31

other languages: de                  
Lange 31 (Platin), Ref. 130.025
Lange 31 (Rotgold), Ref. 130.032
Kaliber L034.1
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

Gehäuse

Platin oder Rotgold
Durchmesser: 45,9 mm, Höhe: 15,9 mm
Saphirglas, Sichtboden aus Saphirglas

Zifferblatt:

massiv Silber

Armband:

Krokoleder-Armband