Seiko Chronograph 6139-6009
Record status
Individual type · partial
Period
circa 1970s
Maker / issuer
SeikoThe Seiko 6139-6009 chronograph is an automatic wristwatch associated with the 1970s era. It features a 41mm stainless steel case, an acrylic crystal, and a dark blue dial with a red and blue tachymeter bezel, often referred to as a "Pepsi" scale.
The watch is powered by the 6139 automatic movement, which was introduced by Seiko in 1969. The design includes dual chronograph pushers and a day-date display at the three o'clock position. The dial displays white luminous markers and hands, contrasted by an orange central chronograph hand and a sub-dial hand. The model is sometimes referred to as the "True Cevert" due to historical connections with Formula One driver François Cevert.
The construction includes a specific crown placement and text layout on the dial.
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
- Seiko
- Movement
- 6139 automatic
- Reference
- 6139-6009
- Dial Color
- Dark blue
- Case Diameter
- 41mm
- Case Material
- Stainless steel
- Place recorded
- Japan
- Chronograph Type
- Automatic
- Maker / attribution
- Seiko
- Country of Manufacture
- Japan
Design
- Visible features
- • Blue and red "Pepsi" tachymeter bezel • Day-date window at the 3 o'clock position • Stainless steel multi-link bracelet with folding clasp • Orange central chronograph hand
- Historical Associations
- This reference is frequently identified by collectors as the "True Cevert" model, a name derived from its link to the Formula One driver François Cevert. The association is rooted in historical photographic evidence that suggests the driver wore this specific reference during his career. The identification of this model relies on specific details such as the text layout on the dial at the nine o'clock position and the case geometry near the crown.
- Movement and Functionality
- The watch is equipped with the Seiko 6139 movement, a self-winding chronograph mechanism launched in 1969. This movement is notable for being one of the early automatic chronographs, competing against other contemporary calibers such as those from Zenith and Heuer. The movement drives the central chronograph seconds hand and features a integrated day-date display, which is positioned at the three o'clock mark on the dial. The caliber 6139 is designed to function as an automatic system, reflecting a development period in watchmaking that prioritized internal integration over external modules. Its implementation in this reference supports the function of the chronograph pushers located on the side of the 41mm stainless steel case.
- Design and Case Construction
- The exterior of the 6139-6009 consists of a 41mm stainless steel case with a polished bezel. The aesthetic is defined by the blue and red tachymeter scale on the outer rim of the dial. The dial itself is dark blue, housing luminous hour markers and matching hands for improved legibility. Additional design features include a sub-dial for chronograph measurement, accented with an orange hand, and a faceted or cut appearance near the crown area of the case.
Identification
- Reference
- 6139-6009
- 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: Historical attribution to François Cevert is based on historical photos rather than primary documentation
- Research required: Exact date of manufacture within the 1970s is not specified in the source