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The Encyclopedia of Horology

Wristwatch · Chronograph

Porsche Design by Orfina Chronograph 1 Reference 7177

Partially verified

This Porsche Design by Orfina Chronograph 1, reference 7177, is a stainless steel wristwatch featuring a matte-finished 42mm case. The watch is powered by a Lemania 5100 movement. Its black dial incorporates three sub-dials, day and date apertures, and luminous indices. A prominent feature is the '3H' symbol on the dial, signifying the use of tritium for luminosity, which matches the hands. The auction description reports that the movement has been checked by their watchmaker and that the watch includes its original Porsche Design box. The piece is described as having been supplied for both commercial and military use. The overall condition of the matte finish and the bracelet is reported as being in an high state of preservation by the vendor.

Front view of the Porsche Design by Orfina Chronograph 1 ref. 7177 on a steel bracelet.
Front view of the Porsche Design by Orfina Chronograph 1 ref. 7177 on a steel bracelet. — Bulang & Sons. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
www.bulangandsons.com
Category
Wristwatch · Chronograph
Maker / attribution
Orfina
Reference
7177
Catalogue / lot identifier
Source URL identifies the listing
Source-reported date
Not established
Source-reported place
Not established

Source-reported attribution and specifications are not independent authentication. A listing does not establish present ownership, current display, availability or permission to reproduce.

Object description

Case and Dial

The watch features a 42mm steel case finished with a matte surface. The black dial is arranged with three sub-dials and displays the '3H' mark inside a red circle at the 2 o'clock position, indicating the presence of tritium.

Luminous material is applied to the indices and hands, which are reported to have aged over time. The watch includes a day and date display at the 3 o'clock position, and the chronograph functions are highlighted by orange-colored hands.

Evidence for this section
  • “42mm steel case with matte finish”
  • “The black dial features three sub dials and also two cool orange hands”
  • “The dial features the 3H marking, which signifies Hydrogen 3 or as we know it better tritium.”

Movement and Functionality

The watch is equipped with the Lemania 5100 caliber, a self-winding chronograph movement. The auction description indicates that this movement has undergone a technical inspection by the vendor's watchmaker to confirm its operational state.

The chronograph features include a central sweep seconds hand and sub-dials for elapsed time measurement, complemented by the integrated day and date calendar mechanism found on the standard Lemania 5100 layout.

Evidence for this section
  • “Lemania 5100 movement”
  • “the Lemania 5100 movement has been fully checked by our watchmaker.”

Provenance and Presentation

It is offered with its original Porsche Design box and a secondary handmade leather watch pouch.

The vendor notes that the matte finish and the bracelet remain in a condition suggestive of minimal wear history.

Evidence for this section
  • “Porsche Design supplied the reference 7177 to many military forces and also sold them commercially”
  • “The 42mm case is wonderful condition, the matte finish remains pretty much immaculate; we doubt this watch has been worn!”
  • “Original Porsche Design box”

Open research questions

  • What is the specific production date range for this reference 7177?
  • Can the military issuance be verified through archival documentation for this specific serial range?

Source evidence

Recorded claims and source quotations for Porsche Design by Orfina Chronograph 1 Reference 7177
FieldSource-reported valueSource quotation
MakerOrfina“Vendor: Orfina”
Reference7177“Reference 7177”
Case Diameter42mm“42mm steel case with matte finish”
MovementLemania 5100“Lemania 5100 movement”
LuminescenceTritium“The dial features the 3H marking, which signifies Hydrogen 3 or as we know it better tritium.”

Visible details

  • '3H' symbol in a red circle on the dial
  • Integrated stainless steel bracelet with matte finish
  • Three chronograph sub-dials with orange accents
  • Bilingual day and date display at the 3 o'clock position

Research qualifications

  • Uncertain exact year of manufacture
  • Unverified military issuance history for this specific unit

Photograph identity and source facts were screened before import; rights clearance remains pending.

Consulted source

ساعت مچی Porsche Design by Orfina کرنوگراف ۱ مات رفرنس 7177

Reviewed 2026-11-02 · Record 371fa37d52

Terms in this record

Glossary explanations for terms named in this object’s record.

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