The beautiful and very fine pocket watch showcased in today's offering is an original example of one of Patek's late key wind watches. It features a Patek caliber with moustache counterpoise, frosted gilt finishing, and unusual plate layout.

It is original with a numbers matching case and is in pleasing condition.

Its porcelain dial is in excellent original condition, and its case is in honest original condition with a few flat spots around the band.

One of our watchmakers has disassembled it down to its last screw and cleaned and oiled it making it ready for immediate enjoyment. Its extremely fine original movement is running amazingly true - after more than 140 years it continues to keep chronometer grade time in four testing positions.

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

Accompanying the watch is a period correct fitted box from "Bennet, Watchmaker to the Royal Observatory" that the watch was in when we acquired it.

Please inquire if you would like a Patek extract for the watch.

Patek Philippe:
Patek Philippe bears the standard of the finest watch manufacturer in the world and holds world records for the most expensive watches in the world.

During the 1860's and '70's, Patek Philippe produced only fewer than approximately twenty watches per day (contrast this with Omega and other fine watch manufacturers that produced 500 - 1,200 pieces per day) making original examples very rare and collectable.

• Manufacturer: Patek Philippe
• Country of origin: Switzerland
• Serial no.: 41,037
• Year built: c. 1870's
• Functions: Hours, Minutes, Subsidiary Seconds
• Designed for: Men
• Case material: 18K gold
• Case markings: No. 41037 (case number stamped on both cuvette and case back), Patek Philippe & Co., Geneve, Aiguilles - the word "Ayer" has been lightly inscribed on the cuvette and is stamped on the inside of the back
• Case condition: Honest original condition with a few flat spots/indentions around the case band. Case spring has lost its zest but opens just fine. The inner stamping protrudes just a bit through the outside of the case. Overall it presents honestly with no personalization on the outside. It doesn't appear to have been overly polished and has nice normal engine turning detail
• Dimensions: 50mm diameter
• Dial: Porcelain, black painted Roman numerals and minute track, sunk subsidiary seconds, signed Patek Philippe Geneve, excellent condition with one short scratch near three and wear around the seconds bit, original and untouched
• Hands: Original, blue steel, "spades"
• Movement type: Extremely high grade Patek Philippe pocket chronometer, unusual plate layour, moustache counterpoise, index regulator slightly shortened at tip, setting arbor escutcheon not present which doesn't affect the watch, key wound and key set
• Movement markings: It is correctly unsigned for the period.
• Crystal type: Acrylic, excellent condition
• Timing: Timed to precision on a state-of-the-art computerized system - after more than 140 years it continues to keep chronometer grade time in four testing positions. 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 - Period correct "Bennet, Watchmaker to the Royal Observatory" that the watch was in when we acquired it. 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