Today's offering showcases this rare and classic Seamaster De Ville with rare caliber 560 movement of which only 3,000 examples were made.

These movements were split across nine models, making each in effect a "limited edition." The 560 was a movement made only for the U.S. market to cut down on import tariffs.

Ours has an intriguing dial that was refinished in vintage times to a very dark navy blue. Its so dark that in low light it almost looks black - in brighter light the blue comes out more.

The Seamaster De Ville, showcasing both refinement and high function, was the most important Omega line from a sales perspective from the latter part of the 1960's into the 1970's. It has a monocoque - or one piece - case which ensured water resistance and slim, elegant profile. The case when new achieved high water resistance ratings by not having a separate case back.

This pleasing example has all of its original parts down to the dial, hands, and winding crown. The only part that has been replaced is the crystal, which we replaced with a correct for this model like-new-old stock Omega one which was more challenging than expected to find.

Its case is honest. It is in excellent condition with light wear and only slight signs of previous polishing long ago. Its previously refinished dial is bright and clean.

One of our Master Watchmakers has fully serviced the watch which consists of fully disassembling the movement, carefully inspecting each part, replacing any overly worn components with genuine Omega replacements, tightening the cannon pinion, reassembling and lubricating the movement, and extensive timing testing and regulation (an $895 value). It is running very strong and true, keeping time essentially on par with a new Omega in our testing recording position.

For the finishing touch, we have equipped it with a vintage styled Connoisseur of Time leather strap and aftermarket Omega style buckle making it ready for immediate enjoyment.

We also stock lizard and a variety of other straps in various prints, skins, and colors. Please ask us if you're interested.

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

Note: Published examples of similar watches can be found in Marco Richon's work Omega: A Journey Through Time, 2007, pg. 403.

For further reading on the caliber 560 visit our friend Desmond Guilfoyle's .

The model's page on the Omega website can be .

Manufacturer: Omega
Country of origin: Switzerland
Year built: 1960's
Model: Ref. ST 166.020, Seamaster
Functions: Hours, Minutes, Automatic, Date, Sweep Seconds
Designed for: Men
Case material: Stainless steel
Case markings (outside): Seamaster with hypocampus emblem, Waterproof
Case markings (inside): Omega Watch Co., Acier Inoxydable, Swiss made, 166.020
Case condition: Honest condition. It is in excellent condition with light wear and only slight signs of previous polishing long ago.
Dimensions: 34.5mm wide (excluding crown), 40mm long lug tip-to-tip
Dial: Very dark navy blue, applied baton indexes, aperture for the date, refinished in vintage times, bright and clean
Hands: Original, steel luminous batons, surface aging, luminous is partially missing - please inquire if you would like them relumed.
Movement type: Cal. 560, copper colored, 17 jewels, straight line lever escapement, monometallic balance, shock-absorber, self-compensating flat balance-spring
Jewels: 17 rubies
Beat frequency: 19,800 BPH
Band: Vintage Horween style, brand new and unused with aftermarket Omega style buckle. We also stock lizard and a variety of other straps in various prints, skins, and colors. Please ask us if you're interested.
Width between lugs: 18mm
Crystal type: Acrylic, correct for this model like-new-old stock Omega one which was more challenging to fine than expected.
Serviced: One of our Master Watchmakers has fully serviced the watch which consists of fully disassembling the movement, carefully inspecting each part, replacing any overly worn components with genuine Omega replacements, tighening the cannon pinion, reassembling and lubricating the movement, and extensive timing testing and regulation (an $895 value).
Timing: Timed to precision on a state-of-the-art computerized system. It is running very strong and true, keeping time essentially on par with a new Omega in our testing recording position.
Warranty: 1-year international warranty. Please email [email protected] for details. 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 extremely experienced team of four Master Watchmakers all of whom each have over thirty-five years of experience and a large number of parts. One used to be the watchmaker for an authorized Rolex dealership and was given special training by Rolex at their Beverly Hills Service Center.
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