Longines Lindbergh Hour Angle Chronograph Ref. L26026
Record status
Individual type · partial
Period
1990s
Maker / issuer
LonginesThe Longines Lindbergh Hour Angle Chronograph, reference L26026, is a Swiss-made automatic wristwatch housed in an 18-karat yellow gold case. The watch features a 42mm diameter case with an exhibition back, displaying the automatic caliber L674.7 movement, which is based on the Valjoux 7750 architectural design.
This movement incorporates 25 jewels and supports chronograph functions with 30-minute and 12-hour registers, alongside a secondary constant seconds sub-dial. A day-date calendar display is positioned at the 3 o'clock mark. The dial is white with silver-toned sub-dials, Roman numeral hour markers, and Breguet-style hands. A bi-directional rotating bezel, also in 18-karat gold, is engraved with degree markings for hour angle calculations, referencing historical aeronautical designs.
The watch is fitted with a sapphire crystal and a black alligator leather strap with the maker's original buckle.
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
- Maker
- Longines
- Period
- 1990s
- Crystal
- Sapphire
- Movement
- Automatic caliber L674.7 (base Valjoux 7750)
- Reference
- L26026
- Case Diameter
- 42mm
- Case Material
- 18k yellow gold
- Serial Number
- 5257674
- Place recorded
- Switzerland
- Maker / attribution
- Longines
Design
- Visible features
- • Onion-style winding crown at the 3 o'clock position • Engraved degree/hour angle scales on the rotating bezel • Engraved rotor visible through the exhibition case back • Breguet-style hour and minute hands
- Case and Dial Construction
- The watch is constructed with a 42mm diameter case manufactured from 18-karat yellow gold. A distinguishing external feature is the bi-directional rotating bezel, which is also fashioned from 18-karat gold and carries engraved hour angle scales. The case is equipped with an exhibition back that allows for observation of the movement. The winding crown is fashioned in an onion style. The dial layout features a white surface accented by silver-colored sub-registers. Numerical indications are presented via black Roman numerals, complemented by Breguet-style hands. A day and date aperture is located at the 3 o'clock position on the dial. The assembly is completed with an anti-scratch sapphire crystal.
- Provenance and Included Accessories
- The watch is offered as part of a package that includes the timepiece, an original Longines alligator leather strap, and the maker's original buckle. The provenance documentation indicates that the watch comes with a modern wooden Longines box, an outer box, and a polishing cloth. The watch is identified by serial number 5257674. According to the provided reports, the object is in excellent physical condition and maintains accurate timekeeping.
- Movement and Technical Specifications
- The timepiece utilizes the Longines caliber L674.7 automatic movement. This movement is constructed upon the architecture of the Valjoux 7750. It contains 25 jewels and serves to power the watch's integrated chronograph complications. The chronograph functionality includes a 30-minute recorder and a 12-hour recorder, along with a subsidiary seconds hand. Additionally, the movement provides a calendar display showing both the day and date.
Identification
- Reference
- L26026
- Serial number
- 5257674
- 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: The provided weight of 62.2 grams is stated to include the sapphire crystals
- Research required: Independent verification of movement authenticity and precision is not provided