Encased in platinum, the most expensive precious metal of its day, and made by one of the premier watchmakers in the world, Audemars Piguet, this special piece was one of the company's top-tier offerings, made for the U.S. market.

It was made at a time when wristwatches were just beginning to catch on, and many if not most men hadn't transitioned yet from carrying a pocket watch.

We previously owned the same watch made by AP for sale through Tiffany & Co., with a Tiffany branded dial. A photo of it is in the listing.

This high-grade watch was equipped with Audemar's Piguets masterful ultra thin movement. Incredibly the complete watch with crystal measures a mere 5.4mm thick! Ultra thin watches have always captured my admiration because the watchmaking skill and extra care needed to make them are extraordinary. The tolerances are so small that each one is a horological achievement itself. This watch posseses a lot of technical sophistication and luxury for a timepiece in this price range.

The aesthetic centerpiece of the watch is is wonderful silver dial with 18K gold Breguet numerals. Depending on the angle of viewing it can appear either quite light or quite dark.

It has all of its original parts, down to all hands, the crown, and even the mineral glass crystal appears original!

Adding to its allure, it comes with what appears to be its original associated 18K white gold chain with very elegantly done with much hand-engraved detail. The chain is 14 inches long and the spring ring has previously been replaced with a sturdy one done in 14K white gold.

It is in very pleasing condition. Its original case, made for AP by A. Wittnauer, is in excellent condition with only light wear.

Its dial, with applied white gold Breguet numerals, presents as better than near mint. Its finish may be original or it may have been perfectly reprinted in vintage times. It high-grade AP movement is keeping time.??? Please inquire if you would like photos of the inside of the watch.

One of our Master Watchmakers, who used to be the watchmaker for an authorized Rolex dealer and was given special training by Rolex at their Beverly Hills Service Center to be an authorized Rolex watchmaker, has fully serviced the watch which consists of fully disassembling the ultra-thin movement, carefully inspecting each part, installing a new mainspring, reassembling and lubricating the movement, and extensive timing testing and regulation (a $795 value).

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.

• Maker: Audemars Piguet
• Country of Manufacture: Switzerland, made for the U.S. market
• Serial no.: 24,521
• Year built: c. mid-1920's
• Functions: Hours and minutes
• Designed for: Men
• Case style: Open face
• Setting type: Stem wind, stem set
• Case material: Platinum
• Case condition: Excellent with only light wear
• Case markings (inside): A.W. (for A. Wittnauer, one of AP's U.S. contract case makers), platinum, 42271
• Dimensions: 42mm diameter
• Dial: Brushed silver - it can appear either quite light or quite dark depending on the angle of viewing, white gold applied Breguet numeral indexes. Its finish may be original or it may have been perfectly reprinted in vintage times. It is better than near mint with only very slight aging around the periphery.
• Hands: Original, white gold "cathedrals"
• Movement type: Extremely high grade, Audemars Piguet, manually wound, sever adjustments for precision timekeeping, rhodium plated, fausses cotes decoration, lever escapement, bimetallic compensation balance, self-compensating flat balance spring
• Serviced: One of our Master Watchmakers, who used to be the watchmaker for an authorized Rolex dealer and was given special training by Rolex at their Beverly Hills Service Center to be an authorized Rolex watchmaker, has fully serviced the watch which consists of fully disassembling the ultra-thin movement, carefully inspecting each part, installing a new mainspring, reassembling and lubricating the movement, and extensive timing testing and regulation (a $795 value).
• Timing: Timed to precision on a state-of-the-art computerized system.
• Warranty: 1-year international warranty. Please email concierge@cotwatches.com 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.
• 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