A. Lange & Söhne Lange 1 Reference 101.031

Technical characteristics

Type

Manual-winding wristwatch

Maker

A. Lange & Söhne

Strap

Brown alligator

Movement

L901.1

Reference

101.031

Case diameter

38.5mm

Case material

18k rose gold

Dial features

Asymmetrical, outsize date, power reserve

Place recorded

Germany

Maker / attribution

A. Lange & Söhne

Design

Visible features

• Asymmetrical dial layout with time at 9 o'clock • Large outsize date aperture at top right • Power reserve display labeled 'AUF' and 'AB' • Signed crown with A. Lange & Söhne emblem

Design Provenance

First introduced in the 1990s, the Lange 1 design redefined the display of time for the manufacturer. The model is characterized by its specific proportions and the arrangement of its distinct complications, which are designed to create a balanced visual effect. This example is attributed to the 2000s. The design remains consistent with the original model's introduction, utilizing the same spatial distribution for the time, date, and power reserve. The manufacture of this watch takes place in Glashütte, Germany.

Dial and Case Design

The Lange 1 utilizes an asymmetrical dial configuration that separates the hours and minutes into an off-center sub-dial at the 9 o'clock position. The dial features a prominent outsize date display positioned near the 2 o'clock area, balanced by a power reserve indicator on the right side of the face. The indicators and hands are rendered in a rose gold tone to complement the case material. The watch is encased in 18k rose gold measuring 38.5mm in diameter. The black dial serves as a backdrop for the gold-applied indices, which are placed around the sub-dials. The case is fitted with a signed crown and is attached to a brown alligator leather strap finished with an 18k rose gold pin buckle.

Movement and Engineering

The timepiece is driven by the Calibre L901.1, a manual-winding movement. The internal architecture of the movement includes German silver plates and bridges. Hand-finished details, such as polished black steel components and gold chatons, are integrated into the movement design to facilitate the aesthetic presentation of the mechanical parts. The movement is noted for its hand-winding mechanism and specific material choices, which are visible through the case back. These engineering choices provide the power for the watch's multiple complications, including the instantaneous jump of the outsize date.

Identification

Reference

101.031

Source note

Facts transcribed from the linked source listing or collection record. Attribution and specifications are source-reported and have not been independently authenticated.

Catalogue references

No catalogue numbers recorded. Numbers are only published once transcribed from a verified edition of a standard catalogue — they are never inferred.