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Patek Philippe - Patek Philippe Yellow Gold Calatrava Ref. 3893 - The Keystone Watches

Patek Philippe Yellow Gold Calatrava Ref. 3893

Patek Philippe Yellow Gold Calatrava Ref. 3893

Sold Out

 
Patek Philippe Yellow Gold and Enamel Pocket Watch, Circa 1904

Patek Philippe Yellow Gold and Enamel Pocket Watch, Circa 1904

Patek Philippe Yellow Gold and Enamel Pocket Watch, Circa 1904

$9,750 USD
 

Patek Steel UFO Automatic Backwind Watch Ref. 3580 with Blue Dial (New Arrival)

Patek Steel UFO Automatic Backwind Watch Ref. 3580 with Blue Dial (New Arrival)

Sold Out

 
Patek Philippe Yellow Gold Pocket Watch with Guilloche Dial

Patek Philippe Yellow Gold Pocket Watch with Guilloche Dial

Patek Philippe Yellow Gold Pocket Watch with Guilloche Dial

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Patek Philippe Platinum Annual Calendar Chronograph Watch Ref. 5960

Patek Philippe Platinum Annual Calendar Chronograph Watch Ref. 5960

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Patek Philippe - Patek Philippe Rose Gold World Time Cloisonne Watch Ref. 5131 - The Keystone Watches

Patek Philippe Rose Gold World Time Cloisonne Watch Ref. 5131

Patek Philippe Rose Gold World Time Cloisonne Watch Ref. 5131

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Patek Philippe Annual Calendar Chronograph Watch Ref. 5960

Patek Philippe Annual Calendar Chronograph Watch Ref. 5960

Patek Philippe Annual Calendar Chronograph Watch Ref. 5960

Sold Out

 

Patek Philippe Rose Gold Perpetual Calendar Split Seconds Chronograph Watch Ref. 5204

Patek Philippe Rose Gold Perpetual Calendar Split Seconds Chronograph Watch Ref. 5204

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Patek Philippe White Gold Gondolo Ref. 5010

Patek Philippe White Gold Gondolo Ref. 5010

Patek Philippe White Gold Gondolo Ref. 5010

Sold Out

 

Patek Philippe White Gold World Time Ref. 5110

Patek Philippe White Gold World Time Ref. 5110

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Patek Philippe - Patek Philippe White Gold Grand Complication Minute Repeater Watch Ref. 5213 - The Keystone Watches

Patek Philippe White Gold Grand Complication Minute Repeater Watch Ref. 5213

Patek Philippe White Gold Grand Complication Minute Repeater Watch Ref. 5213

Sold Out

 

Patek Philippe White Gold Ellipse Ref. 3598

Patek Philippe White Gold Ellipse Ref. 3598

Sold Out

 
Patek Philippe - Patek Philippe Platinum Perpetual Calendar Chronograph Ref. 5970 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Chronograph Ref. 5970

Patek Philippe Platinum Perpetual Calendar Chronograph Ref. 5970

Sold Out

 

Patek Philippe Yellow Gold Nautilus Ref. 3800 with Blue Diamond Dial

Patek Philippe Yellow Gold Nautilus Ref. 3800 with Blue Diamond Dial

Sold Out

 
Patek Philippe - Patek Philippe Yellow Gold Calatrava Ref. 5022 - The Keystone Watches

Patek Philippe Yellow Gold Calatrava Ref. 5022

Patek Philippe Yellow Gold Calatrava Ref. 5022

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Patek Philippe Yellow Gold Golden Ellipse Ref. 3855

Patek Philippe Yellow Gold Golden Ellipse Ref. 3855

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Patek Philippe Rose Gold Perpetual Calendar Ref. 5940 (New Arrival)

Patek Philippe Rose Gold Perpetual Calendar Ref. 5940 (New Arrival)

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Patek Philippe Yellow Gold Calatrava Ref. 570 (New Arrival)

Patek Philippe Yellow Gold Calatrava Ref. 570 (New Arrival)

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Patek Philippe Yellow Gold Nautilus Ref. 3800 (New Arrival)

Patek Philippe Yellow Gold Nautilus Ref. 3800 (New Arrival)

Sold Out

 

Patek Philippe Yellow Gold Ellipse Ref. 3987 (New Arrival)

Patek Philippe Yellow Gold Ellipse Ref. 3987 (New Arrival)

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Patek Philippe White Gold Gondolo Ref. 3571 with Textured Blue Dial and JPE Bracelet

Patek Philippe White Gold Gondolo Ref. 3571 with Textured Blue Dial and JPE Bracelet

Patek Philippe White Gold Gondolo Ref. 3571 with Textured Blue Dial and JPE Bracelet

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Patek Philippe Steel Calatrava Ref. 3579 in Outstanding Original Condition

Patek Philippe Steel Calatrava Ref. 3579 in Outstanding Original Condition

Sold Out

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New Arrivals Preview
 
Breguet Platinum and Rose Gold Tourbillon Ref. 3457 (New Arrival)

Breguet Platinum and Rose Gold Tourbillon Ref. 3457 (New Arrival)

Breguet Platinum and Rose Gold Tourbillon Ref. 3457 (New Arrival)

$68,500 USD
 
Cartier Tank Coussin Bamboo Ref. 78102 (New Arrival)

Cartier Tank Coussin Bamboo Ref. 78102 (New Arrival)

Cartier Tank Coussin Bamboo Ref. 78102 (New Arrival)

$125,000 USD
 
Cartier Tank Allongee Elongated, Circa 1940 (New Arrival)

Cartier Tank Allongee Elongated, Circa 1940 (New Arrival)

Cartier Tank Allongee Elongated, Circa 1940 (New Arrival)

$62,000 USD
 
Patek Philippe White Gold Rectangular Art Deco Watch (New Arrival)

Patek Philippe White Gold Rectangular Art Deco Watch (New Arrival)

Patek Philippe White Gold Rectangular Art Deco Watch (New Arrival)

$55,000 USD
 
Cartier Platinum Tank Watch Ref. 16111 (New Arrival)

Cartier Platinum Tank Watch Ref. 16111 (New Arrival)

Cartier Platinum Tank Watch Ref. 16111 (New Arrival)

$21,000 USD
 
Patek Philippe Yellow Gold Chronograph Watch Ref. 591, Incredible Original Condition (New Arrival)

Patek Philippe Yellow Gold Chronograph Watch Ref. 591, Incredible Original Condition (New Arrival)

Patek Philippe Yellow Gold Chronograph Watch Ref. 591, Incredible Original Condition (New Arrival)

$175,000 USD
 
Patek Philippe Yellow Gold Enamel Dial Calatrava Watch Ref. 2526 (New Arrival)

Patek Philippe Yellow Gold Enamel Dial Calatrava Watch Ref. 2526 (New Arrival)

Patek Philippe Yellow Gold Enamel Dial Calatrava Watch Ref. 2526 (New Arrival)

$70,000 USD
Shop all New Arrivals Preview

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Guarantee

Our watches go through a rigorous authentication process in which seasoned experts examine and evaluate the watches. These experts have decades of experience and have authenticated thousands of watches in their lifetime. We guarantee every piece of the watches we offer are 100% authentic. 

CONTACT US

You can reach us by emailing hello@thekeystone.com or call 213-632-9061

We are based in West Hollywood, CA. Please contact us for appointments to view a watch in person. 

We are not authorized sellers of the brands listed on our site. We sell vintage and pre-owned product.

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