Today's offering showcases this classic and rare ladies Constellation. It presents in gorgeous restored condition.

We believe that this model was likely a national production model made exclusively for the Japanese market and have only found photos of one other example in our extensive research.

Powering the watch is Omega's caliber 620 series movement. Its ultra-thin handwound movement measures only 2.5mm thick and was one of Omega's ultra slim models.

It is fully Omega and presents in true expertly restored condition. The dial has been meticulously refinished - the printing could pass as Omega factory done to the naked eye.

The only other example that our research turned up had an appliqe star. This one has a painted star and no hole visible from the top, so it is presumably correct.

It was fully overhauled by a Master Watchmaker and is keeping very accurate time.

For the finishing touch a new leather strap has been installed making it ready for immediate enjoyment.

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

Omega Constellations:
Omega's flagship line for decades, the Constellation represents style, luxury, attention to detail, robust function, and most all, superior precision. Elegant and stately, it is suitable for both casual and professional dress.

Worn on the wrists of Michael Schumacher, Pierce Brosnan, Michael Phelps, Ernie Els, Omega watches rank with those from Rolex.

• Manufacturer: Omega
• Country of origin: Switzerland, we believe it was likely made exclusively for the Japanese market
• Serial no.: 36,002,772
• Year built: c. 1973
• Model: Constellation, Ref. 511.257
• Functions: Hour, Minutes
• Designed for: Ladies
• Case material: Stainless steel
• Case condition: Mint - very slight wear on the bottom of the lugs
• Dial: Royal blue, whitened steel baton indices, expertly refinished
• Dimensions: 20mm wide (excluding crown - 22mm including), 31.5mm long lug tip to tip
• Hands: Original, whitened steel batons
• Movement type: Caliber 620, 17 jewels, copper colored, handwound, shock resistant
• Jewels: 17 rubies
• Band: Leather, fully stitched, padded, brand new and unworn. For the finishing touch we have equipped it with a brand new crocodile strap making it ready for immediate enjoyment.
• Width between lugs: 12mm
• Crystal: Acrylic, appears original (no longer signed/unsigned), excellent condition
• Serviced: Yes, overhauled 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