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The Encyclopedia of Horology

Wristwatch · Tourbillon wristwatch

A. Lange & Söhne 1815 Tourbillon ref. 730.079F

Partially verified

The A. Lange & Söhne 1815 Tourbillon, reference 730.079F, is a limited edition wristwatch cased in platinum, measuring 39.5mm in diameter and 11mm in thickness. It features a fired white enamel dial on a copper base, distinguished by large Arabic numerals, a chemin-de-fer minutes track, and blued steel hands. A defining characteristic is the single red "12" numeral and a one-minute tourbillon aperture positioned at the six o'clock mark, which is framed by a black-polished bridge. The movement, caliber L102.1, is manually wound and contains a stop-seconds mechanism and a zero-reset function for the seconds hand. The timepiece exhibits construction details such as a three-quarter plate architecture, a hand-engraved balance cock, screwed gold chatons, and a diamond endstone for the tourbillon axis. It is paired with a black alligator leather strap and a platinum deployant clasp. Production is limited to 100 pieces.

Front view of the A. Lange & Söhne 1815 Tourbillon ref. 730.079F showing the enamel dial and tourbillon aperture.
Front view of the A. Lange & Söhne 1815 Tourbillon ref. 730.079F showing the enamel dial and tourbillon aperture. — Analog:Shift. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
analogshift.com
Category
Wristwatch · Tourbillon wristwatch
Maker / attribution
A. Lange & Söhne
Reference
730.079F
Catalogue / lot identifier
Source URL identifies the listing
Source-reported date
circa 2010s
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 Design

The watch features a platinum case with a diameter of 39.5mm and a thickness of slightly over 11mm. The design philosophy emphasizes restraint, aligning with the 1815 family aesthetic. The case houses a dial crafted through a multi-stage process involving fired white enamel applied over a copper base.

The visual composition of the dial includes large Arabic numerals and a chemin-de-fer minutes track. The hour markers are paired with blued steel hands. The aesthetic is further defined by a single red numeral '12', intended as a reference to historical Saxon pocket watches. At the six o'clock position, a one-minute tourbillon aperture is integrated into the dial, encircled by a black-polished bridge.

Evidence for this section
  • “The dial is rendered in fired white enamel over copper”
  • “Large Arabic numerals, a chemin-de-fer minutes track, and blued steel hands complete the picture, punctuated by a single red “12””
  • “The tourbillon aperture is framed by a black-polished bridge”

Movement and Mechanics

The watch is powered by the caliber L102.1, a manually wound movement visible through a sapphire caseback. The movement architecture incorporates traditional elements including a three-quarter plate and a hand-engraved balance cock. Other components include screwed gold chatons and a diamond endstone located at the tourbillon axis.

Functionally, the movement includes a stop-seconds mechanism for the tourbillon. Additionally, it features a zero-reset function, which allows the seconds hand to return to the zero position when the user sets the time. This combination is intended to provide chronometric utility to the tourbillon complication.

Evidence for this section
  • “the manually wound caliber L102.1 is on full display beneath a sapphire caseback”
  • “Lange’s signature three-quarter plate architecture, hand-engraved balance cock, screwed gold chatons, and even a diamond endstone for the tourbillon axis”
  • “integrates both a stop-seconds mechanism for the tourbillon and a zero-reset function”

Provenance and Accessories

This specific watch is a limited edition piece with a total production run of 100 units. It is accompanied by its original box set, which includes both an inner and an outer box.

The package also includes the original papers and pamphlets associated with the watch. The timepiece is fitted with a black alligator leather strap, which is signed, and is secured by a signed platinum deployant clasp.

Evidence for this section
  • “Limited to just 100 pieces”
  • “accompanied by its inner and outer boxes as well as its original papers and pamphlets”
  • “Paired to a signed black alligator leather strap with a signed platinum deployant clasp”

Open research questions

  • What is the specific production year of this individual unit?
  • Does the inclusion of the original pamphlets contain information regarding the specific manufacture date or dealer distribution?

Source evidence

Recorded claims and source quotations for A. Lange & Söhne 1815 Tourbillon ref. 730.079F
FieldSource-reported valueSource quotation
MakerA. Lange & Söhne“A. Lange & Söhne”
Reference number730.079F“730.079F”
Case materialPlatinum“cased in platinum”
Case dimensions39.5mm diameter, >11mm thick“39.5mm in diameter and just over 11mm thick”
Movement modelL102.1“manually wound caliber L102.1”
Limited edition count100 pieces“Limited to just 100 pieces”
Dial materialFired white enamel over copper“fired white enamel over copper”

Visible details

  • Red '12' numeral on dial
  • One-minute tourbillon at 6 o'clock position
  • Black-polished tourbillon bridge
  • Sapphire caseback revealing L102.1 caliber

Research qualifications

  • Exact production year is not specified in the source
  • The source does not explicitly verify current functional status of the zero-reset mechanism

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

Consulted source

ساعت مچی A. Lange & Söhne Lange 1815 Tourbillon

Reviewed 2026-11-02 · Record a6571787a7

Terms in this record

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

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