The superior original automatic IWC showcased in today's offering is powered by the Albert Pellaton designed Caliber 8531 movement. This mechanism's automatic winding system is a technical masterpiece, earning it high praise - Gisbert Brunner and Christian Pfeiffer-Belli in their work, Wristwatches Armbanduhren Montres-bracelets, proclaimed the 8531 "one of the best automatic movements ever built in Switzerland."

And the famous watchmaker Donald de Carle, in his book Complicated Watches and their Repair, stated that IWC's special automatic winding mechanism was "a simple and ingenious system, well constructed and beautifully finished."

IWC built it in 1963 at the same they were building their famous Ingenieur line. These dress watches were more elegant than the pragmatic Ingenieur but shared the high-performance timekeeping qualities in normal wearing conditions. And compared to an Ingenieur, because they do not have a second inner back, the cases are thinner and lighter on the wrist.

It is 100% original down it dial, hands, and fish signed winding crown and in pleasing original condition. The case has never been polished - it has crisp lines and its original satin finish on the back.

Its silver dial is original and in excellent condition. It has begun to lightly warm to a sepia tone, giving it a true vintage look.

And its movement has been freshly cleaned and oiled and is running very true.

For the finishing touch we have installed a new crocodile band making it ready for immediate enjoyment.

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

• Manufacturer: IWC
• City of origin: Schaffhausen, Switzerland
• Serial no.: 1,705,083
• Year built: 1963
• Functions: Hours, Minutes, Automatic, Sweep Seconds, Date
• Designed for: Men 
• Dimensions: 35mm wide (without crown), 42mm lugs tip-to-tip
• Case condition: Pleasing condition with crisp lines. It has never been polished and the back retains a strong satin finish. Light scratches and wear on the sides of the lugs and small groove at the place where the case opens.
• Case markings (inside): International Watch Co., Swiss, Acier Inoxydable Staybrite, 1620783
• Dial: Silver, Signed International Watch Co. Schaffhausen and AUTOMATIC, baton indexes, outer minute track, original, excellent condition with even surface aging throughout and light toning to a sepia color
• Hands: Original, steel batons
• Jewels: 21 rubies
• Band: Crocodile, fully stitched, padded, brand new and unworn
• Crystal type: Acrylic, excellent condition
• Movement: IWC caliber 8531, self-winding, rhodium plated and decorated, 21 jewels, Breguet hairspring, shock resistant, precision regulator
• Serviced: Yes, fully freshly cleaned and oiled.
• 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 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