A. Lange & Söhne 1815 Tourbillon ref. 730.079F

Technical characteristics

Type

Tourbillon wristwatch

Maker

A. Lange & Söhne

Case material

Platinum

Dial material

Fired white enamel over copper

Movement model

L102.1

Place recorded

Germany

Case dimensions

39.5mm diameter, >11mm thick

Reference number

730.079F

Maker / attribution

A. Lange & Söhne

Limited edition count

100 pieces

Design

Visible features

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

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.

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.

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.

Identification

Reference

730.079F

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.