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The Encyclopedia of Horology

Wristwatch · Diving wristwatch

Longines Heritage Legend Diver Reference L3.674.4.50.0

Partially verified

This Longines Heritage Legend Diver, reference L3.674.4.50.0, is a wristwatch inspired by the brand’s 1960s diving watches. The timepiece features a 42mm stainless steel case with a dual-crown configuration, where one crown operates an internal rotating bezel used for calculating elapsed time. The dial is black, protected by a scratch-resistant sapphire crystal with an anti-reflective coating, and includes a date display at the 3 o'clock position. It is powered by the Swiss-made automatic Longines Caliber L888 mechanical movement. The watch is presented on a black sailcloth strap over leather with a stainless steel buckle. According to the auction description, this example was purchased in 2020, has seen minimal use, and is accompanied by its original box and documentation. The auction description reports that the movement operates accurately and as intended.

Front-three-quarter view of the Longines Heritage Legend Diver showing the black dial and dual-crown case design.
Front-three-quarter view of the Longines Heritage Legend Diver showing the black dial and dual-crown case design. — Zamanito/Back in Time. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
zamanito.com
Category
Wristwatch · Diving wristwatch
Maker / attribution
Longines
Reference
L3.674.4.50.0
Catalogue / lot identifier
Source URL identifies the listing
Source-reported date
2020
Source-reported place
Switzerland

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 utilizes a 42mm stainless steel case designed in the likeness of 1960s super-compressor style watches.

The dial is finished in black and adheres to a utilitarian aesthetic, characterized by large, luminous-filled Arabic numerals at the 12 and 6 positions, complemented by applied baton indices. A date aperture is positioned at the 3 o'clock mark. The crystal is composed of scratch-resistant sapphire treated with an anti-reflective coating.

Evidence for this section
  • “بدنه این ساعت دارای قطر ۴۲ میلی‌متر بوده و به بزل داخلی چرخان برای محاسبه زمان سپری‌شده مجهز است”
  • “ساختار دو دسته‌کوک و حلقه داخلی چرخان آن مستقیماً یادآور ساعت‌های سوپر کمپرسور کلاسیک آن دوران است”
  • “صفحه ساعت به رنگ مشکی طراحی شده و نمایشگر تاریخ در موقعیت ساعت ۳ قرار دارد”

Movement and Performance

Inside the case resides the Longines Caliber L888, a Swiss-made automatic mechanical movement. This movement serves the watch's primary functions, which include the display of hours, minutes, seconds, and the date.

According to the seller's information, the movement is reported to be in good working order, with all functions operating accurately. The object is described as having been purchased in July 2020 and having seen only limited use since that time.

Evidence for this section
  • “در بخش پیشرانه، این ساعت از موتور مکانیکی اتوماتیک ساخت سوئیس با کالیبر L888 لونژین بهره می‌برد”
  • “طبق اعلام فروشنده، موتور ساعت به‌خوبی کار می‌کند، عملکردهای آن دقیق است”

Provenance and Documentation

The watch is listed with its original accompanying documentation and double box. The provenance indicates an original purchase date in July 2020. The current physical condition is estimated by the seller to be approximately 99 percent, noting the piece is in near-new condition.

The seller specifies that the watch is supplied as-is. All technical specifications and condition reports are derived from the vendor's data and are not validated by independent horological inspection.

Evidence for this section
  • “این ساعت به همراه جعبه دوگانه و اسناد و مدارک اصلی ارائه شده است”
  • “این نمونه در ژوئیه ۲۰۲۰ خریداری شده و تنها چند بار استفاده گردیده است”
  • “وضعیت فیزیکی این ساعت در حدود ۹۹ درصد و در حد نو ارزیابی شده است”

Open research questions

  • What is the specific production date of this movement within the L888 series?
  • Does the watch retain its original factory warranty card beyond the initial 2020 purchase?

Source evidence

Recorded claims and source quotations for Longines Heritage Legend Diver Reference L3.674.4.50.0
FieldSource-reported valueSource quotation
MakerLongines“برند: Longines”
ReferenceL3.674.4.50.0“شماره رفرنس: L3.674.4.50.0 (L36744500)”
Case diameter42 mm“قطر ۴۲ میلی‌متر”
MovementLongines Caliber L888“کالیبر: Longines Caliber L888”
Purchase date2020“این نمونه در ژوئیه ۲۰۲۰ خریداری شده”
Case materialStainless steel“جنس قاب: استیل ضدزنگ”
CrystalSapphire with anti-reflective coating“شیشه: کریستال سافایر ضدخش و ضد انعکاس”

Visible details

  • Dual-crown case configuration with knurled crowns
  • Internal rotating bezel marked with luminous triangle and indices
  • Black dial with oversized 6 and 12 numerals and date aperture at 3 o'clock
  • Luminous applied baton hour markers

Research qualifications

  • Internal assessment of the 99 percent condition is based solely on the seller's claims
  • Accuracy of functional claims reported by the seller has not been independently verified

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

Consulted source

ساعت مچی Longines مدل Heritage Legend Diver رفرنس L3.674.4.50.0

Reviewed 2026-11-02 · Record 71a7489a71

Terms in this record

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

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