Skip to content
The Encyclopedia of Horology

Wristwatch · Chronograph wristwatch

A. Lange & Söhne 1815 Chronograph Ref. 402.026

Partially verified

The A. Lange & Söhne 1815 Chronograph, reference 402.026, is a manual-wind wristwatch featuring a 39.5mm white gold case. The timepiece is characterized by an argenté solid silver dial with Arabic numerals and a pulsometer scale around the periphery. It is powered by the manual-wind calibre L951.5, which includes a flyback chronograph function. The movement construction incorporates German silver bridges, hand-engraved balance cock, and gold chatons. The watch is worn on a black alligator leather strap with a matching white gold pin buckle. This particular example is accompanied by its original box and documentation dated to 2012. The design of the dial, including the sub-dial placement, draws reference to historic pocket watch layouts from the Glashütte manufacture.

Front view of the A. Lange & Söhne 1815 Chronograph, showing the silver dial, Arabic numerals, pulsometer scale, and black leather strap.
Front view of the A. Lange & Söhne 1815 Chronograph, showing the silver dial, Arabic numerals, pulsometer scale, and black leather strap. — Zamanito (via Analog:Shift). Rights pending — permission not yet requested. Original source

Catalogue identity

Source
zamanito.com
Category
Wristwatch · Chronograph wristwatch
Maker / attribution
A. Lange & Söhne
Reference
402.026
Catalogue / lot identifier
Source URL identifies the listing
Source-reported date
2012
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

Case and Dial

The watch is housed in a 39.5 mm case manufactured from 18-karat white gold. The design is intended to balance classical aesthetics with engineering utility.

The argenté solid silver dial features Arabic numerals and a railroad track minutes scale. A pulsometer scale is printed on the outer circumference, a feature identified as referencing early medical chronographs and historical pocket watch designs. The sub-dials are placed slightly below the center line of the dial, which is noted as a signature element for the manufacture.

Evidence for this section
  • “بدنه ۳۹.۵ میلی‌متری از طلای سفید ۱۸ عیار”
  • “صفحه نقره‌ای جامد (argenté) این مدل، امضای اصیل سری 1815 را به همراه دارد”
  • “موقعیت قرارگیری زیرصفحه‌ها که کمی پایین‌تر از مرکز قرار دارند، یکی از ویژگی‌های متمایز برند Lange است”

Movement and Mechanism

The timepiece is driven by the calibre L951.5, a manual-wind movement visible through a sapphire crystal case back. The construction of the movement utilizes German silver for the bridges and includes hand-engraved balance cock detailing, gold chatons, and polished steel components.

The movement integrates a flyback chronograph complication, a mechanism designed to be technically and visually intricate.

Evidence for this section
  • “قلب تپنده این ساعت، کالیبر دستی L951.5 است”
  • “معماری آن با استفاده از پل‌های نقره آلمانی، خروسک تعادل حکاکی‌شده با دست، قطعات فولادی پولیش‌خورده مشکی و چاتون‌های طلا، نمایشی خیره‌کننده از هنر ساعت‌سازی است”
  • “مکانیزم کرنوگراف فلای‌بک (flyback) در این کالیبر، نه تنها از نظر فنی پیچیده است”

Provenance and Equipment

This watch is documented as including its original box and papers. These documents are dated to 2012, which serves as the production or original purchase period for this specific example.

The watch is equipped with a black alligator leather strap finished with a pin buckle crafted from white gold.

Evidence for this section
  • “همراه بودن جعبه و مدارک اصلی مربوط به سال ۲۰۱۲”
  • “این قطعه با بند چرم تمساح مشکی و سگک سوزنی از طلای سفید عرضه می‌شود”

Open research questions

  • What is the specific movement serial number matching the 2012 documentation?
  • Are there variations in the calibre L951.5 finish throughout the production run of the 402.026?

Source evidence

Recorded claims and source quotations for A. Lange & Söhne 1815 Chronograph Ref. 402.026
FieldSource-reported valueSource quotation
MakerA. Lange & Söhne“A. Lange & Söhne”
Reference number402.026“402.026”
Case material18k white gold“طلای سفید ۱۸ عیار”
MovementCalibre L951.5“کالیبر دستی L951.5”
Case diameter39.5 mm“۳۹.۵ میلی‌متری”
Dial materialSolid silver“صفحه نقره‌ای جامد (argenté)”
ComplicationFlyback chronograph“مکانیزم کرنوگراف فلای‌بک (flyback)”

Visible details

  • Case diameter of 39.5 mm
  • Arabic numeral hour markers
  • Pulsometer scale on outer edge of dial
  • Sub-dials positioned slightly below center

Research qualifications

  • Movement details visible only through sapphire case back, which is not depicted in current photos
  • Attribution of original box and papers to 2012 relies entirely on secondary reporting

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

Consulted source

ساعت مچی A. Lange & Söhne 1815 Chronograph Ref. 402.026

Reviewed 2026-11-02 · Record 3d9018367d

Terms in this record

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

Other chronograph wristwatch records