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The Encyclopedia of Horology

Wristwatch · Quartz wristwatch

IWC Yacht-Club II reference 4512

Partially verified

The IWC Yacht-Club II reference 4512 is a quartz-powered wristwatch dating from the late 1970s. The watch features a 29mm stainless steel case accented by an octagonal 18k yellow gold bezel. Its dial is finished with a champagne-colored linen texture and includes applied baton indices with cream-colored tritium luminous points, a date aperture at the 3 o'clock position, and a green Khanjar emblem representing the Sultanate of Oman printed at 9 o'clock. The timepiece is fitted with a two-tone stainless steel and 18k yellow gold H-link integrated bracelet. The crown is stamped with the IWC fish motif, denoting water resistance. This specific example is powered by an IWC quartz movement.

Front view of the IWC Yacht-Club II reference 4512 showing the linen dial and Khanjar emblem.
Front view of the IWC Yacht-Club II reference 4512 showing the linen dial and Khanjar emblem. — Bulang & Sons. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
zamanito.com
Category
Wristwatch · Quartz wristwatch
Maker / attribution
IWC (International Watch Co.)
Reference
4512
Catalogue / lot identifier
Source URL identifies the listing
Source-reported date
late 1970s
Source-reported place
Switzerland
Source-reported serial
227xxxx

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 IWC Yacht-Club II ref. 4512 features a compact 29mm case constructed from stainless steel. It is distinguished by an octagonal bezel crafted from 18k yellow gold, which complements the two-tone aesthetic of the watch. The crown, situated on the right side of the case, is signed with the characteristic IWC fish symbol.

The dial is rendered in a champagne color with a distinct linen texture. It is populated by applied linear hour markers, each tipped with cream-colored tritium luminous material. A date display window is positioned at the 3 o'clock mark, while the Oman Khanjar crest is printed in green at the 9 o'clock position.

Evidence for this section
  • “قاب ساعت با قطر ۲۹ میلی‌متر از استیل ساخته شده و به یک زه (بزل) هشت‌ضلعی پهن از جنس طلای زرد ۱۸ عیار”
  • “پیچ تنظیم ساعت (تاج) مزین به نماد سنتی ماهی IWC نشان‌دهنده مقاومت در برابر نفوذ آب است”
  • “صفحه ساعت دارای بافت کتان (Linen dial) با رنگ شامپاینی بوده”
  • “چاپ دقیق نشان ملی سلطنت عمان (خنجر و دو شمشیر متقاطع زیر تاج سلطنتی) به رنگ سبز اختصاصی در موقعیت ساعت ۹ است”

Movement and Bracelet

Internally, the watch is driven by a proprietary IWC quartz movement. The electronic components and brand signature are visible when the case back is removed. The source reports that the movement has been serviced and is equipped with a new battery to ensure accurate timekeeping.

The watch is secured to the wrist by a semi-integrated H-link bracelet made from a combination of stainless steel and 18k yellow gold. This bracelet is sized to fit a wrist circumference of up to 16 centimeters.

Evidence for this section
  • “ساعت به موتور کوارتز کالیبر اختصاصی مجهز است”
  • “این موتور توسط ساعت‌ساز بازبینی شده، باتری تازه بر روی آن نصب گردیده و کارکرد دقیق دارد”
  • “بند ساعت نیز از نوع H-link نیمه‌یکپارچه ترکیبی از استیل و طلای ۱۸ عیار بوده”

Provenance and Authenticity

The watch is reported to have a specific provenance, originating from the descendants of a former Tunisian government official.

Due to the unique nature of the Khanjar dial, prospective collectors are advised to perform independent assessments regarding the authenticity of the printed emblem and the current condition of the electronic movement components. The serial number 227xxxx is consistent with production during the late 1970s.

Evidence for this section
  • “این ساعت دارای پیشینه مالکیتی مشخص است و مستقیماً از وراث یک وزیر سابق کشور تونس”
  • “ساعت را به عنوان هدیه‌ای شخصی از سلطان قابوس دریافت کرده بود”
  • “تطابق شماره سریال بدنه (227xxxx) با دوره تولید اواخر دهه ۱۹۷۰، اصالت و پیوستگی چاپ سبز رنگ خنجر عمانی و سلامت برد الکترونیکی موتور کوارتز را به دقت و به صورت مستقل مورد ارزیابی قرار دهند”

Open research questions

  • Does the 29mm case size fall within the standard production range for the Yacht-Club II reference 4512?
  • Are there official IWC archives that verify the specific batch of 4512 models produced with the Khanjar emblem?

Source evidence

Recorded claims and source quotations for IWC Yacht-Club II reference 4512
FieldSource-reported valueSource quotation
MakerIWC (International Watch Co.)“IWC (International Watch Co.)”
ModelYacht-Club II“IWC Yacht-Club II”
Serial227xxxx“227xxxx”
Case MaterialStainless steel and 18k yellow gold“استیل ضدزنگ و طلای زرد ۱۸ عیار”
Movement TypeQuartz“موتور کوارتز”
Case Diameter29mm“قطر ۲۹ میلی‌متر”

Visible details

  • Octagonal bezel made of yellow gold
  • Champagne linen dial with printed green Khanjar
  • Integrated two-tone H-link bracelet
  • Crown features fish logo

Research qualifications

  • Authenticity of the green Khanjar print requires independent evaluation
  • Condition and functionality of the electronic quartz circuit require verification

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

Consulted source

IWC Yacht-Club II in Steel and Yellow gold Oman Green Khanjar Linen Dial ref. 4512 from Original Owner Family

Reviewed 2026-11-02 · Record 881a81d66b

Terms in this record

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

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