⭐ ROLEX Chronometer Ref. 4139 – 14K Gold (c. 1943–1946)

An exceptionally rare early Rolex Chronometer from the pre-Oyster era – a witness to the brand’s greatest precision victories.

This extremely scarce Rolex Chronometer Ref. 4139 in 14-karat gold represents one of the most fascinating chapters in early Rolex history. Produced in the mid-1940s, during the height of Rolex’s achievements in Swiss Observatory competitions, it embodies the brand’s uncompromising pursuit of accuracy long before sports models like the Submariner or Daytona existed.

🔶 A Case from the Era of Precision Victories

Inside the caseback appears one of the most iconic inscriptions used by Rolex between the 1930s and 1946:

“31 Victoires de Haute Précision – Genève, Suisse”

Only watches produced at the very peak of Rolex’s observatory success carry this engraving. Rolex had just achieved 31 chronometric records, a milestone that helped establish the company’s reputation as the world leader in wristwatch accuracy. After 1946 the marking was discontinued, which makes surviving examples from this period especially desirable among collectors.

🔶 High-Grade Chronometer Movement with Superbalance

The watch houses a beautiful hand-wound Rolex movement featuring:

• 17 jewels
• “Chronometer” marking on the bridge
• Rolex’s patented Superbalance – an innovative balance-wheel design introduced in 1935–1938 to improve stability and performance in wristwatch-sized movements

The Superbalance was a major achievement of the pre-war years and is directly connected to Rolex’s observatory competition domination. Watches equipped with this improvement were considered top-grade, precision-built instruments.

🔶 Period-Correct Dial Aesthetics

The dial features an elegant arrangement of Roman numerals and central seconds – a style documented on multiple 1940s Rolex chronometer references (e.g., Ref. 4134, 8094, 2764, 3131). Such Roman-numeral chronometer layouts were characteristic of Rolex dress watches from this era, bridging the aesthetics of traditional observatory dials with the refined appearance of post-war chronometers.

In our opinion the dial has been professionally restored in the past, following the original layout and period-correct style.

🔶 34 mm Gold Case – Large for Its Era

With a 34 mm diameter, the watch would have been considered oversized in the 1940s, offering outstanding wrist presence even today. The slim, curved lugs and polished 14k case give it an unmistakably elegant silhouette reminiscent of early Patek Philippe and Vacheron dress watches.

🔶 Historical & Collectible Significance

What makes this reference truly special?

1. Produced at the height of Rolex’s chronometry triumphs
   This is a tangible artifact from the era when Rolex built the foundation of its modern prestige—not through marketing, but by beating competitors at the world’s most demanding timing competitions.
2. Rare reference with very low survival rate
   Ref. 4139 surfaces extremely rarely at auctions. The few known examples (gold or steel) show that production was limited, and that most pieces have not survived in such condition.
3. Early chronometer with central seconds
   Most Rolex chronometers of the 1930s–40s featured small seconds. Central seconds on a chronometer movement of this age is significantly less common and highly attractive to collectors.
4. Exceptional case engraving no longer used after 1946
   The “31 Victoires” inscription is a major collectible point by itself—featured also on legendary references like the ref. 4113 split-seconds chronograph.
5. A piece of real, pre-Oyster Rolex history
   Before the mass-market dominance of Oyster Perpetuals, Rolex produced a short line of non-Oyster chronometers distinguished by craftsmanship and precision. This watch belongs to that lost era.

⭐ In Summary

This Rolex Chronometer Ref. 4139 is far more than a vintage watch—it’s a historically significant artifact from what many collectors call “the golden age of Rolex precision.”

Its combination of:

• 14k gold case
• chronometer-grade Superbalance movement
• period-correct Roman dial layout
• rare case engraving celebrating Rolex’s observatory victories
• excellent preservation

makes it a highly desirable and extremely hard-to-find collector’s piece from the 1940s.

A beautiful opportunity to acquire a refined, elegant, and historically meaningful Rolex that pre-dates the modern Oyster dynasty and carries the DNA of the brand’s earliest achievements.

📦 What’s Included

Box/Case: Secure black travel watch case.

Documents: Invoice and our service certificate worth €738 — included free of charge

🚚 Shipping, Returns

Insured worldwide shipping. 14-day inspection (unused, seals intact). Pro packing with tracking.

🛎️ Call-to-Action

Questions or an offer? Click “Negotiate Your Price.” Serious collector inquiries welcome.

🔧 Included Service Benefits

💰 If you ever decide to sell the watch, a documented service will significantly enhance its market appeal and resale value.

🛠️ A professional service worth €738 — included free of charge.

The service includes:

Full disassembly, ultrasonic cleaning, and lubrication using Moebius synthetic oils

Regulation and timing adjustment

Ultrasonic case and bracelet cleaning (if applicable)

Final technical & aesthetic inspection

📄 An official service certificate is provided, listing key technical and identifying details — ideal for insurance, provenance, or future resale.

🛡️ This ensures peace of mind and removes the need for servicing for the next 3–5 years.