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Orfina Porsche Design Military Chronograph Ref. 7177

ProbableCredible evidence exists but classification is not fully established.

Record status

Individual type · partial

Period

1970s

Maker / issuer

Porsche Design

This Orfina Porsche Design Military Chronograph, reference 7177, is a Swiss-made wristwatch originating from the 1970s. The timepiece features a 40mm stainless steel case finished with a factory-applied matte black PVD coating.

The watch is powered by the Lemania 5100 automatic chronograph movement, known for its shock resistance. The matte black dial includes a red "3H" insignia, indicating the presence of tritium luminous material on the hands and markers. It is equipped with an original black PVD-coated stainless steel bracelet manufactured by NSA. According to the auction description, the case remains unpolished, exhibiting minor signs of previous wear while maintaining its structural integrity.

The watch is provided without original boxes or documentation, and the history of previous service remains unknown, although it is reported to be in accurate working order.

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
Orfina/Porsche Design
Serial
16XX
Bracelet
NSA-manufactured PVD steel
Movement
Lemania 5100
Reference
7177
Dial Feature
3H Tritium symbol
Case Material
Stainless steel with PVD coating
Place recorded
Switzerland
Maker / attribution
Porsche Design

Design

Visible features
• Red 3H marking on the dial indicating tritium • Orange central chronograph seconds hand and sub-dial hands • Day-date window positioned at the 3 o'clock marker • Matte black PVD coating on case and bracelet
Case and Dial Design
The timepiece features a 40mm stainless steel case treated with an industrial black PVD finish. The design follows a functional aesthetic, characterized by a matte black dial intended for high readability. The dial is punctuated by orange-colored chronograph hands and indices treated with luminous material. A distinct red "3H" mark is present on the dial, signifying the use of tritium-based luminous compound. The day and date aperture is located at the 3 o'clock position. The case remains in its original unpolished state with factory markings and minor wear consistent with age.
Movement and Functionality
The watch houses the Lemania 5100 automatic movement, a caliber widely recognized for its shock-resistant architecture and utility in aviation and military chronographs. The auction description indicates that the movement is currently functioning accurately, although there is no recorded history of previous maintenance or servicing.
Authentication and Documentation
The object is identified as a model 7177 produced through the collaboration of Porsche Design and Orfina. It includes an NSA-produced PVD-coated steel bracelet. All specifications provided are based on the primary source documentation and are not independently verified by the reference site.

Identification

Reference
7177
Serial number
16XX
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: Previous service history unknown
  • Research required: Specific level of patina variation on the 7 o'clock marker
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