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The Encyclopedia of Horology

Wristwatch · Chronograph

Orfina Porsche Design Military Chronograph Ref. 7177

Partially verified

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.

Front view of the Orfina Porsche Design Military Chronograph with black PVD finish and matte black dial.
Front view of the Orfina Porsche Design Military Chronograph with black PVD finish and matte black dial. — Zamanito. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
zamanito.com
Category
Wristwatch · Chronograph
Maker / attribution
Porsche Design
Reference
7177
Catalogue / lot identifier
Source URL identifies the listing
Source-reported date
1970s
Source-reported place
Switzerland
Source-reported serial
16XX

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 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.

Evidence for this section
  • “قاب استیل ۴۰ میلی‌متری این ساعت طبق منبع پولیش‌نخورده باقی مانده”
  • “صفحه مشکی مات در وضعیت بی‌نقص توصیف شده و دارای علامت مشخص قرمز 3H”

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.

Evidence for this section
  • “در قلب این کرنوگراف نظامی، کالیبر اتوماتیک پرآوازه Lemania 5100 قرار دارد.”
  • “ساعت کارکرد زمانی دقیقی دارد، اما سابقه سرویس‌های قبلی آن نامشخص است”

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.

Evidence for this section
  • “همکاری میان پورشه دیزاین و سازنده سوئیسی اورفینا از سال ۱۹۷۲”
  • “بند فلزی مشکی PVD ساخت NSA به همراه ساعت ارائه شده است.”
  • “هیچ‌گونه جعبه یا مدارک جانبی همراه آن ارائه نشده است.”

Open research questions

  • What is the specific production window within the 1970s for serial number 16XX?
  • To what extent does the darkening of the 7 o'clock marker impact the original factory-applied tritium uniformity?

Source evidence

Recorded claims and source quotations for Orfina Porsche Design Military Chronograph Ref. 7177
FieldSource-reported valueSource quotation
MakerOrfina/Porsche Design“همکاری میان پورشه دیزاین و سازنده سوئیسی اورفینا”
Reference7177“رفرنس 7177”
Serial16XX“شماره سریال: 16XX”
MovementLemania 5100“کالیبر اتوماتیک پرآوازه Lemania 5100”
Case MaterialStainless steel with PVD coating“قاب استیل ۴۰ میلی‌متری این ساعت طبق منبع پولیش‌نخورده باقی مانده و پوشش مشکی PVD کارخانه‌ای”
Dial Feature3H Tritium symbol“دارای علامت مشخص قرمز 3H (نشان‌دهنده استفاده از تریتیوم)”
BraceletNSA-manufactured PVD steel“بند فلزی مشکی PVD ساخت NSA به همراه ساعت ارائه شده است.”

Visible details

  • 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

Research qualifications

  • Previous service history unknown
  • Specific level of patina variation on the 7 o'clock marker

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

Consulted source

ساعت مچی کرنوگراف Orfina Porsche Design Military مدل 7177 با پوشش PVD

Reviewed 2026-11-02 · Record 0bc7ede924

Terms in this record

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

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