Introduced in 1954, the Longines Conquest was the brand’s first officially trademarked collection and represented its flagship automatic offering of the era. It was conceived to combine refined dress watch elegance with enhanced durability, including a screw-back waterproof case and the distinctive enamel medallion set into the caseback.

The Conquest Calendar Deluxe elevated the concept further by pairing Longines’ in-house automatic movement with a solid gold case and dial, creating a watch that was equally at home under a cuff or as a high-end daily companion. Reference 9005 is a classic expression of this vision - clean, confident, and unmistakably mid-century Swiss luxury.

Today's offering showcases this all-original Conquest Calendar Deluxe.

On the wrist, this watch has presence far beyond its dimensions. The warm tone of the heavy 18K gold case paired with the matching original 18K gold dial, 18K hands, and 18K crown, creates a depth and richness that only precious metal can deliver. The applied gold indices catch the light differently at every angle, giving the dial a subtle dimensionality that feels far more luxurious than a simple flat surface.

What makes this piece especially compelling is the combination of refinement and engineering. It's not merely a dress watch - it was designed as a waterproof automatic at a time when that claim truly meant something. The screw-back case and cloisonné enamel medallion were technical statements as much as aesthetic ones. It represents a moment when Longines was asserting itself at the very top tier of Swiss watchmaking, producing in-house movements, solid gold cases, and cohesive design language all under one roof.

Powering the watch is its original Longines automatic caliber 19ASD, movement. It is clean, correct, and properly housed within its original case. As one would expect for the movement Longines chose to power this watch, the 19ASD is one of the company's respected mid-century automatics - smooth winding, mechanically elegant, and emblematic of the Golden Era of the company when Longines movements were considered among the very fine in Switzerland.

It has all of its original parts and is a pleasing example. Its untouched original dial is just short of mint even under magnification.

Its case is in excellent condition with light wear and fairly light signs of previous polishing. It has one ding on the lower left side and light wear underneath the lugs from a previously installed metal bracelet. On the wrist, its case presents beautifully.

Unlike many Conquests, this one nearly flawlessly retains its original cloisonné enamel.

One of our Master Watchmakers has fully serviced the watch which consisted of fully disassembling the movement; carefully inspecting each part; adjusting the set level so it engaged deeper with the detent, installing correct new calendar module screws, and adjusting the upper pivot of the staff; reassembling and lubricating the movement, and extensive timing testing and regulation (a $995 value).

We have also timed it on a machine that simulates it being worn on the wrist. It is keeping very accurate time.

For the finishing touch, we have equipped it with a brand new Teju lizard strap and aftermarket Longines style buckle 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 and full-page custom printed Connoisseur of Time Certificate of Authenticity.

Note: In 2014, Longines celebrated the 60th anniversary of the Conquest with a trio of heritage releases that are very reminiscent of our vintage watch.

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 training by Rolex at their Beverly Hills Service Center.

Manufacturer: Longines
Country of origin: Switzerland
Serial no.: 11,027,337
Year built: 1960
Model: Ref. 9005, Conquest Calendar
Designed for: Men
Function: Hours, Minutes, Automatic, Sweep Seconds, Semi-Quick Set Date
Case material: 18K gold and enamel
Case markings (outside): 18K gold hallmarks; enamel Conquest medallion on back
Case condition: Its case is in excellent condition with light wear and fairly light signs of previous polishing. It has one ding on the lower left side and light wear underneath the lugs from a previously installed metal bracelet. On the wrist, its case presents beautifully.
Dimensions: 35mm wide (excluding crown), 42mm long lug tip-to-tip
Hands: Original, gold, faceted "dauphines"
Movement type: One of our Master Watchmakers has fully serviced the watch which consisted of fully disassembling the movement; carefully inspecting each part; adjusting the set level so it engaged deeper with the detent, installing correct new calendar module screws, and adjusting the upper pivot of the staff; reassembling and lubricating the movement, and extensive timing testing and regulation (a $995 value).
Jewels: 19 rubies
Width between lugs: 18mm
Crystal type: Acrylic, excellent condition
Serviced: One of our Master Watchmakers has fully serviced the watch which consisted of fully disassembling the movement; carefully inspecting each part; adjusting the set level so it engaged deeper with the detent, installing correct new calendar module screws, and adjusting the upper pivot of the staff; reassembling and lubricating the movement, and extensive timing testing and regulation (a $995 value).
Timed: Timed to precision on a computerized system. We have also timed it on a machine that simulates it being worn on the wrist. It is keeping very accurate time.
Warranty: 1-year 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. One used to be the watchmaker for an authorized Rolex dealership and was given 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
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