Today's offering showcases this wonderful all-original ref. 3131 Bubbleback made circa 1946. Produced from 1939 to 1946, these exclusive watches are very fine and desirable.

Housed in one of Rolex's first water-tight Oyster cases, this wristwatch originally offered its owner complete protection against water and dust. Inside the ruggedly elegant case Rolex place an early self-winding Perpetual movement, keeping the watch powered by movements of the wrist.

Equipped with nineteen jewels, a self-compensating Breguet mainspring, and the company's patented Super-Balance system for greater accuracy, this fine watch the timekeeping standards of discriminating owners.

What separates this watch from other Bubblebacks its it beautiful all original condition. It is fully original down to the dial, all hands, and Oyster Patent winding crown, which still screws down well.

The case has very nice thick lugs which have not been polished significantly. It's a very well-preserved Bubbleback. Our photos couldn't do it justice. The high-grade Rolex Perpetual movement is clean.

Our watchmaker has just freshly cleaned and oiled the movement which winds very smoothly and is running strong and true.

Included with the purchase is a one-year C.O.T. international warranty on the movement and its function, a custom printed Connoisseur of Time Certificate of Authenticity, and a new timing certificate.

Please note: A published example of this model can be found in Osvaldo Patrizzi's work Rolex, Collecting Wristwatches, 2001 Edition, Guido Mondani editor, Vol. 1, p. 214.

• Manufacturer: Rolex
• Country of origin: Switzerland
• Year built: c. 1946
• Serial no.: 412,510
• Model: Reference 3131
• Functions: Hours, Minutes, Automatic, Sweep seconds
• Designed for: Men
• Case material: 14K yellow gold
• Case markings (inside): Rolex, 3131, 14K Gold, Geneve Swiss, Patented
• Case condition: Better than near mint with light signs of polishing.
• Dimensions: Mens size, 32mm wide (excluding crown), 39mm long lug tip-to-tip, 14mm thick
• Dial: Eggshell white warmed to a light sepia, gold roman numeral and dart indexes, signed Rolex Oyster Perpetual Officially Certified Chronometer, original, better than excellent condition
• Hands: Original, gold, "feuille" hour and minute hands, blue steel center seconds hand, pleasing condition
• Movement type: High quality, genuine Rolex, self-winding, self-compensating Breguet hairspring, Super-Balance system
• Movement markings: Rolex Perpetual, Chronometer, Super-Balance, Swiss Made, Patented
• Jewels: 19 rubies
• Band: Crocodile, fully stitched, padded, brand new and unworn
• Width between lugs: 18mm
• Crystal type: Acrylic, excellent condition
• Serviced: Yes. freshly cleaned and oiled.
• Timing: Timed to precision on a state-of-the-art computerized system.
• Warranty: 1-year international warranty. Please email concierge@cotwatches.com for details.
• Box/Papers: BOX - Connoisseur of Time watch presentation box; PAPERS - Custom printed Connoisseur of Time Certificate of Authenticity; New timing certificate
• Returns: 7 days full refund. 100% satisfaction guarantee

We offer a 100% satisfaction guarantee for all of our watches. If you are in any way unsatisfied with the watch we will fully refund the purchase price anytime within 7 days after the watch has been received. Our goal is to exceed our client's expectations throughout the buying experience.

All watches are packaged carefully and mailed double boxed in specially constructed, reinforced shipping boxes designed for high value items. All watches are sent fully insured with signature required. Most of our domestic shipping is done through FedEx. At times we will also use USPS Express Mail, and we can accommodate most requests for your preferred carrier. International shipments are sent USPS International Express Mail or FedEx.

The purchase price will be the declared value of the merchandise on any required customs forms. The payment of all customs duties, tariffs, and taxes are the responsibility of the buyer.

Also note that water resistance of vintage watches can no longer be guaranteed and is not covered under the watch's warranty. We do not recommend getting a vintage watch wet, even one that was originally designed to be waterproof.

To get an idea of how this watch will look on the wrist, please use the Watch Sizing Guide