1960 Vacheron Constantin Patrimony Ultra Flat Watch 18K Gold 33mm - Cal. 1003 - Ref. 6338

Watch Overview

Offered here is an exceptionally elegant and highly collectible timepiece: a vintage Vacheron Constantin Patrimony Ultra-Thin, reference 6338, crafted in solid 18K yellow gold and dating to circa 1960 based on its serial number.

At the heart of this watch is the legendary Vacheron Constantin Caliber 1003 — one of the most celebrated ultra-thin movements in horological history. Measuring just 9 lignes (21.05 mm) in diameter and an astonishing 1.64 mm in thickness, it was introduced as one of the world’s thinnest mechanical hand-wound movements. Composed of approximately 120 components, this extraordinary caliber became a benchmark in ultra-thin watchmaking and was used to power some of the thinnest wristwatches ever produced during its era. Even today, the Caliber 1003 remains one of the most important and respected ultra-flat movements ever created.

This manually wound movement features 17 jewels, operates at 18,000 vibrations per hour, and offers approximately 31 hours of power reserve. It was adjusted for precision timekeeping in multiple positions, temperature, and isochronism — reflecting the high standards of Geneva watchmaking during the period.

The watch is fitted with a refined white dial accented by applied gold/black stick hour markers and matching gold hands, embodying the understated elegance for which the Patrimony line is known. The slim 33mm round case, crafted in solid 18K yellow gold, measures approximately 4mm in thickness, giving the watch its distinctive ultra-flat profile. It is paired with a black leather two-piece strap, completing its timeless dress look.

Fully inspected and authenticated by our in-house watchmaker, this timepiece is running accurately and is ready to be worn and appreciated.

Product Details

General Specifications

• Brand: Vacheron Constantin
• Type: Wristwatch
• Model: Patrimony Ultra Flat
• Reference: 6338
• Year / Era: 1960 - Vintage
• Gender: Men's
• Country of Manufacture: Switzerland

Dial & Display

• Display: Analog
• Color: White
• Features: Stick hour markers

Movement

• Type: Manual-wind
• Caliber: 1003
• Jewels: 17
• Movement Functions:
  • Adjusted for accuracy in five positions, temperature and isochronism
• Power Reserve: 31 hours
• Frequency: 18,000 vph

Case & Band

• Material: 18K yellow gold
• Case Shape: Round
• Bezel: Fixed, smooth
• Back: Snap
• Crown: Push-pull
• Band Type: Black leather two-piece strap
• Case Back Markings: Vacheron Constantin 18K 375791 6338

Case Measurements (mm)

• Case Size: 33
• Case Diameter w/Crown: 34.5
• Case Lug to Lug: 3.5
• Case Thickness: 4
• Lug Width: 18
• Band Width: 18

Additional Info

• Box & Papers: NO
• Condition: The watch is in good condition, some signs of wear consistent with use and aged, a solid case, bezel and dial.
• Extras: Fully inspected and authenticated by our in-house watchmaker, confirming that it runs accurately.

History & Legacy of Vacheron Constantin

Founded in 1755 in Geneva by Jean-Marc Vacheron, Vacheron Constantin holds the distinction of being the oldest watch manufacture in the world in continuous operation. For more than 260 years, the Maison has created timepieces without interruption, preserving a legacy rooted in technical mastery, artistic craftsmanship, and a relentless pursuit of excellence. From its earliest hand-finished movements to its most sophisticated complications, the brand has consistently balanced innovation with tradition, shaping the very foundations of Swiss haute horlogerie.

Throughout its long history, Vacheron Constantin has achieved remarkable milestones, including the creation of the Reference 57260 — a pocket watch featuring 57 complications and recognized as one of the most complex mechanical watches ever produced by a single manufacture. This achievement reflects the brand’s enduring commitment to pushing the boundaries of mechanical watchmaking while honoring centuries-old craftsmanship. Today, Vacheron Constantin remains a symbol of refinement, precision, and prestige among the world’s most discerning collectors.

About Second Hand Horology

At SECOND HAND HOROLOGY, we offer a curated selection of watches ranging from vintage to modern, including both brand-new and pre-owned timepieces. We’re committed to quality, accuracy, and integrity. Our listings feature:

Professional, unedited photography and clear, transparent descriptions. Every watch is thoroughly inspected and securely packaged to ensure a confident, seamless buying experience.

We also warmly invite you to visit our physical shop and explore the collection in person.

Contact Us

We appreciate you checking out our listing! Don’t hesitate to reach out with questions, offers, or just to talk watches — we love what we do and enjoy connecting with fellow enthusiasts.

Thank you for your business—we truly appreciate your support and look forward to serving you again in the future!

WA-6631