Porsche Design by Orfina Chrono 1 Military
Record status
Individual type · partial
Period
mid-1970s
This Chrono 1 Military wristwatch, reference 7177, is a product of the collaboration between Porsche Design and the manufacturer Orfina. The watch features a steel case and a matching three-link bracelet, both finished with a black PVD coating that displays wear consistent with age.
Measuring approximately 41 to 42 mm in diameter, the case houses a black dial with a pie-pan configuration. The dial incorporates three chronograph sub-dials and dual windows for the English-language day and date. A distinct red 3H symbol appears on the dial, indicating the use of tritium-based luminous material. The watch is powered by an automatic Lemania 5100 chronograph movement. The case back bears engravings confirming Swiss manufacture and water resistance to 10 atmospheres.
According to the provided information, the watch has been serviced by a watchmaker.
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
- Porsche Design by Orfina
- Origin
- Switzerland
- Serial
- 38xx
- Movement
- Lemania 5100
- Reference
- 7177
- Case Material
- PVD-coated steel
- Place recorded
- Switzerland
- Water Resistance
- 10 ATM
- Production Period
- Mid-1970s
- Maker / attribution
- Porsche Design by Orfina
Design
- Case and Dial
- The watch is housed in a steel case with a black PVD finish. The design features a pie-pan style dial with a traditional layout, incorporating three sub-registers for the chronograph functions. Two apertures at the three o'clock position display the day and date in English. The dial is marked with a distinctive red 3H symbol, which signifies the presence of tritium luminous material on the hands and indices. Over time, the luminous material has developed a yellow patina, and the central orange chronograph hand has experienced some fading.
- Visible features
- • Red 3H marking on the dial indicating tritium • Orange central chronograph hand • Yellowed patina on the luminous hour markers • Black PVD coating with surface wear on case and bracelet
- Movement and Functionality
- The movement is the automatic Lemania 5100 caliber, a chronograph mechanism noted for its functional, utilitarian design. The watch includes a matching black PVD-coated three-link bracelet. The auction description reports that the movement has undergone a complete service by the provider's watchmaker and is ready for use.
- Markings and Identification
- The case back contains several identifying inscriptions, including details regarding the Swiss origin of the watch, the reference number 7177, and the water resistance rating of 10 atmospheres. A serial number formatted as 38xx is present on the case back, which allows the production date to be attributed to the second half of the 1970s.
Identification
- Reference
- 7177
- Serial number
- 38xx
- 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: Discrepancy between 41mm and 42mm case size in source text
- Research required: No documentation or original box provided