A. Lange & Söhne 1815 Chronograph Reference 401.026
Record status
Individual type · partial
Period
2004
Maker / issuer
A. Lange & SöhneThis A. Lange & Söhne 1815 Chronograph, reference 401.026, is an example from the first generation of this model series, introduced in 2004. Constructed with a white gold case, the watch is designed based on the architecture of the Datograph, modified by the removal of the outsized date display, resulting in a slimmer profile.
The dial features a four-layer construction, including silver sub-dials and a printed pulsations scale on the perimeter, accompanied by blue steel hands and numeral indices. Powering the watch is the hand-wound caliber L951.0, which incorporates German silver plates, polished and bevelled steel levers, gold chatons, blue heat-treated screws, and a hand-engraved balance cock.
Evidence at a glance
- Linked sources
- 1
- Photograph views
- 1
- Catalogue references
- 0
Counts describe this entry’s documentation, not authenticity, rarity or completeness. Photographs may show one specimen; check each caption and licence.
Technical characteristics
- Type
- Chronograph wristwatch
- Maker
- A. Lange & Söhne
- Model
- 1815 Chronograph (first generation)
- Caliber
- L951.0
- Reference
- 401.026
- Case Material
- White gold
- Functionality
- Flyback chronograph, pulsometer
- Place recorded
- Germany
- Movement Features
- German silver plates, blue screws, gold chatons, hand engraving
- Maker / attribution
- A. Lange & Söhne
- Year of Introduction
- 2004
Design
- Case and Dial
- The timepiece is housed in a case manufactured from white gold. The design architecture draws directly from the manufacturer's Datograph model but differs by the exclusion of an outsized date display, allowing for a reduced case thickness and a classic aesthetic. The dial utilizes a four-layer construction method. It incorporates silver sub-dials and features a printed pulsations scale positioned on the outer perimeter. The display is completed with blue-toned hands and clear numerical indices, intended for readability.
- Visible features
- • Blue steel hands • Hand-engraved balance cock • Four-layer dial construction with pulsations scale • German silver movement plates
- Movement and Escapement
- The watch operates on the manually wound L951.0 caliber, described as a highly engineered movement. The movement finish includes plates fashioned from German silver and levers that are polished and bevelled. Additional decorative elements of the caliber include a hand-engraved balance cock, functional gold chatons, and screws treated with heat to achieve a blue finish, which contributes to the visual depth of the movement.
- Provenance and Documentation
- This watch is identified as a first-generation model, with its introduction to the market occurring in 2004. The technical and operational information provided for this object is sourced from Hairspring notes. No specific documentation regarding recent servicing or accompanying accessories is mentioned in the record. The provided information is reported based on the source's descriptions, and no independent assessment of the piece or its authenticity has been performed by the cataloguing body.
Identification
- Reference
- 401.026
- 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.
Research required
- Research required: Verification of recent service history is not provided
- Research required: Specific case dimensions are not stated in the source