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The Encyclopedia of Horology

Wristwatch · Manual-winding wristwatch

A. Lange & Söhne Lange 1 Reference 101.031

Partially verified

The A. Lange & Söhne Lange 1, reference 101.031, is a manual-winding wristwatch characterized by an asymmetrical dial layout. It features an outsize date display, an off-center main time dial, and a power reserve indicator. The watch is housed in a 38.5mm 18k rose gold case with a black dial. It is powered by the manual-winding Calibre L901.1, which includes German silver bridges, gold chatons, and hand-engravings. The watch is paired with a brown alligator leather strap secured by an 18k rose gold pin buckle bearing the brand signature. Originally introduced in the 1990s, this specific configuration from the 2000s is noted for its visual balance, integrating the time, power reserve, and date elements. It functions as a mechanical timepiece manufactured by A. Lange & Söhne in Glashütte.

Front view of the A. Lange & Söhne Lange 1 reference 101.031 showing the black dial and rose gold case.
Front view of the A. Lange & Söhne Lange 1 reference 101.031 showing the black dial and rose gold case. — Zamanito. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
zamanito.com
Category
Wristwatch · Manual-winding wristwatch
Maker / attribution
A. Lange & Söhne
Reference
101.031
Catalogue / lot identifier
Source URL identifies the listing
Source-reported date
circa 2000s
Source-reported place
Germany

Source-reported attribution and specifications are not independent authentication. A listing does not establish present ownership, current display, availability or permission to reproduce.

Object description

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.

Evidence for this section
  • “چیدمان نامتقارن صفحه، تاریخ بزرگ، نمایشگر زمان خارج از مرکز”
  • “نمایشگر فرعی ساعت و دقیقه در موقعیت ساعت ۹، ثانیه‌شمار در موقعیت ساعت ۴، نشانگر ذخیره انرژی در موقعیت ساعت ۳”
  • “بدنه ۳۸.۵ میلی‌متری از طلای ۱۸ عیار صورتی”

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.

Evidence for this section
  • “کالیبر L901.1 با کوک دستی”
  • “پل‌های نقره آلمانی، چاتون‌های طلا، حکاکی‌های دستی و فولاد پولیش‌خورده مشکی”

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.

Evidence for this section
  • “زمانی که برند A. Lange & Söhne مدل Lange 1 را در دهه ۱۹۹۰ معرفی کرد”
  • “این نمونه خاص با شماره مرجع 101.031 که متعلق به دهه ۲۰۰۰ میلادی است”

Open research questions

  • Is the specific production year within the 2000s traceable via the movement serial number?
  • What specific differences exist between the 101.031 reference and other variations of the Lange 1 from the same era?

Source evidence

Recorded claims and source quotations for A. Lange & Söhne Lange 1 Reference 101.031
FieldSource-reported valueSource quotation
Reference101.031“101.031”
Case material18k rose gold“بدنه ۳۸.۵ میلی‌متری از طلای ۱۸ عیار صورتی”
Case diameter38.5mm“قطر قاب: ۳۸.۵ میلی‌متر”
MovementL901.1“کالیبر: L901.1”
Dial featuresAsymmetrical, outsize date, power reserve“ویژگی‌های صفحه: نامتقارن، تاریخ بزرگ، ذخیره انرژی”
StrapBrown alligator“چرم تمساح قهوه‌ای”
MakerA. Lange & Söhne“برند: A. Lange & Söhne”

Visible details

  • 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

Research qualifications

  • Exact year of production within the 2000s is not specified
  • The specific serial number of this unit is not provided in the source

Photograph identity and source facts were screened before import; rights clearance remains pending.

Consulted source

ساعت A. Lange & Söhne Lange 1 رفرنس 101.031

Reviewed 2026-11-02 · Record 98f7f17a00

Terms in this record

Glossary explanations for terms named in this object’s record.

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