Today's offering showcases this beautiful all-original chronodato with moonphase Aristo chronograph with exceptional Valjoux 88 movement.

It features a large aviator-style chronograph look that also possesses capabilities that track the date, day of the week, month, and even phases of the moon.

Powering this fine chronograph is the important Valjoux caliber 88 mechanism equipped with a crown wheel and carrying arm, and a self-compensating flat balance spring. Built from 1947 until 1974, the Valjoux 88 ranks among the iconic chronograph movements because of the beauty of its design and components and is the most complicated iteration of the base 72 and 72C that powered famous Dato Compox watches like the six-figure Rolex 6036.

A truly complicated watch, it features seven hands and three windows on the dial, plus four pushers and a crown around the edge:

• Central hour hand
• Central minute hand
• Central chronograph seconds hand
• Central date by pointer
• 30 minute counter at 3:00
• 12 hour counter at 6:00
• Moon phase disc at 6:00
• Running small seconds at 9:00
• Day window at 11:30
• Month window at 12:30

Ulysse Nardin, Heuer, Eberhard, Baume & Mercier, Longines, and Universal Genève, among others all used the Valjoux 88 for some of their very complicated watches, and Heuer made certain watches for Aristo. The most famous of all Valjoux 88 powered watches is of course the Patek 2499, which added a perpetual feature to the calendar.

A true legend, a 2499 sold at Sotheby's in 2018 for $3,915,000.

Dato Compax watches have continued to increase in popularity. But the ones from the most prestigious makers have a big drawback for most collectors - they carry six-figure and in the case of the Patek even a seven figure price tag.

Which is why affordable Dato-Compaxes with moonphases like this Aristo are becoming more and more desirable.

It has all of its original parts. Its case is in excellent condition still retaining nice lines. Its untouched original silver, three color dial shows only fairly light aging. And its movement is clean.

One of our watchmakers has disassembled it down to its last screw and cleaned and oiled it. It's very fine movement is very clean. Photos of the inside available upon request.

A link to an interesting article about the Patek 2499 can be found here.

For the finishing touch we have equipped it with a brand new Italian calfskin strap making it ready for immediate enjoyment.

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.

• Retailer: Aristo
• Country of origin: Switzerland
• Year built: c. 1950's
• Functions: Hours, Minutes, Day, Date, Month, Chronograph, Moonphase, Subsidiary Seconds
• Designed for: Men
• Case material: Stainless steel
• Dimensions: 35mm diameter (excluding crown), 43mm long lug tip-to-tip, 13.5mm thick
• Case condition: Better than near mint with only light wear and very light signs of previous polishing
• Dial: Silver, signed Aristo Incastar Shock-Protected, gold painted Arabic indexes, auxiliary dials for seconds and 30-minute, and 12-hour registers, outer graduation for the days of the month, apertures for the day of the week, the month, and phases of the moon, original, excellent condition with light toning and fairly mild aging
• Hands: Original, gold "batons", blue steel chrono hand, red date hand, and blue steel lozenge register hands
• Movement type: Valjoux caliber 88, very complicated, crown wheel and carrying arm, fully jeweled, shock protected, rhodium plated, capable of timing events up to 12 hours in duration
• Band: Italian calfskin, fully stitched, padded for comfort, brand new and unworn
• Width between lugs: 18mm
• Crystal type: Acrylic, excellent condition
• Serviced: One of our watchmakers has disassembled it down to its last screw and cleaned and oiled it making it ready for immediate enjoyment. 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.
• Timing: Timed to precision on a state-of-the-art computerized system.
• Warranty: 1-year C.O.T. international warranty.
• 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