1970's Ulysse Nardin Vintage Mens Automatic 36,000 BPH Watch, Stainless Steel - Officially Certified Chronometer

Ulysse Nardin

Item No. 6421

Today's offering showcases this striking mens automatic Ulysse Nardin. It has a strong retro style case and royal blue dial.

Measuring 34mm in diameter by 40mm long, it is the size of a Rolex Date model. And like a Rolex, it is powered by an automatic movement that has been officially certified as chronometer, the highest distinction given to a watch movement.

Besides being a certified chronometer, it also features a high frequency 36,000 beats per hour balance system, twice the speed of many traditional watches and the fastest beat rate of the era, insuring exceptional accuracy.

Only a few specialist models of watches from a handful of brands beat at 36,000 per hour. As both a high frequency watch and a officially certified chronometer, this watch would have been among the very best when it came to accuracy in a widely-produced watch at the time.

It presents in gorgeous condition. It has just finished a true expertly done restoration and presents as about a 9.8 out of 10. The dial has been meticulously refinished - the printing could pass as UN factory done to the naked eye. As part of the restoration, the movement has been freshly overhauled by a Master Watchmaker.

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

An over four decade old classic Ulysse Nardin chronometer that presents like new on the wrist!

Ulysse Nardin:
Ulysse Nardin is best known by many collectors for creating chronometers, extremely accurate time keeping instruments. Their marine chronometer used by ship's captains to plot and follow the correct course while at sea. By employing sextants and chronometers, a captain could track the changes in his course over time and determine the exact location of his ship, and Nardin's marine chronometers were among the most reliable and sought after.

  • Manufacturer: Ulysse Nardin
  • Country of origin: Switzerland
  • Year made: c. 1970's
  • Serial no.: 022,669
  • Model: Ref. A2640
  • Functions: Hours, Minutes, Sweep Seconds, Date
  • Designed for: Men
  • Case material: Stainless steel
  • Case markings (inside): UN logo, Stainless Steel, Swiss
  • Case condition: Presents as just short of perfect mint with light signs of polishing and a few light remants of wear to the back
  • Dimensions: 34mm wide (excluding crown - 36mm including) by 40mm long lug tip-to-tip
  • Dial: Royal blue, steel applique baton indices, outer minute track, perfect refinishing
  • Hands: Original, steel, luminous "batons"
  • Movement markings:  Ulysse Nardin, Swiss, NB 11 OU, Swiss 25 Jewels
  • Movement type: Signed Ulysse Nardin caliber NB 11 OU, rhodium, shock protected, micrometer regulator
  • Band: Leather, fully stitched, padded, brand new and unworn. We also stock lizard and a variety of others straps in various prints, skins, and colors. Please ask us if you're interested.
  • Width between lugs: 19mm
  • Crystal type: Acrylic, excellent condition
  • Serviced: Yes, freshly fully serviced by a Master Watchmaker.
  • Timing: Timed to precision on a state-of-the-art computerized system. Your watch is important to us, and we will take care of it for its lifetime. We provide the best after sale care in the business with an experienced team of watchmakers both of whom each have over forty years of experience and a large number of parts.
  • 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


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