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Patek Philippe Yellow Gold Aquanaut Ref. 5065

Patek Philippe Yellow Gold Aquanaut Ref. 5065

Sold Out

 
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

Sold Out

 
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)

Sold Out

 

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

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

Sold Out

 

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

Sold Out

 
Patek Philippe Yellow Gold Watch Ref. 2488 Retailed by Gubelin

Patek Philippe Yellow Gold Watch Ref. 2488 Retailed by Gubelin

Patek Philippe Yellow Gold Watch Ref. 2488 Retailed by Gubelin

Sold Out

 

Patek Philippe Steel Calatrava Ref. 3579 in Outstanding Original Condition

Patek Philippe Steel Calatrava Ref. 3579 in Outstanding Original Condition

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Patek Philippe Yellow Gold Nautilus Ref. 3800/5 with Factory Diamonds

Patek Philippe Yellow Gold Nautilus Ref. 3800/5 with Factory Diamonds

Sold Out

 

Patek Philippe Platinum Perpetual Calendar Ref. 3940

Patek Philippe Platinum Perpetual Calendar Ref. 3940

Sold Out

 
Patek Philippe - Patek Philippe Rose Gold Calatrava Ref. 3919 - The Keystone Watches

Patek Philippe Rose Gold Calatrava Ref. 3919

Patek Philippe Rose Gold Calatrava Ref. 3919

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Patek Philippe - Patek Philippe Yellow Gold Vintage Jumbo Ellipse Ref. 3798/3 on JPE Chain Band - The Keystone Watches

Patek Philippe Yellow Gold Vintage Jumbo Ellipse Ref. 3798/3 on JPE Chain Band

Patek Philippe Yellow Gold Vintage Jumbo Ellipse Ref. 3798/3 on JPE Chain Band

$17,000 USD
 

Patek Philippe Platinum Gondolo Ref. 5098

Patek Philippe Platinum Gondolo Ref. 5098

Sold Out

 
Patek Philippe - Patek Philippe White Gold Travel Time Ref. 4864/2G - The Keystone Watches

Patek Philippe White Gold Travel Time Ref. 4864/2G

Patek Philippe White Gold Travel Time Ref. 4864/2G

Sold Out

 

Patek Philippe White Gold Gondolo Ref. 3761

Patek Philippe White Gold Gondolo Ref. 3761

Sold Out

 

Patek Philippe White Gold Gondolo Ref. 3567 with Original Papers

Patek Philippe White Gold Gondolo Ref. 3567 with Original Papers

Sold Out

 

Patek Philippe Yellow Gold Ladies Ellipse with JPE Bracelet Ref. 4226

Patek Philippe Yellow Gold Ladies Ellipse with JPE Bracelet Ref. 4226

Sold Out

 

Patek Philippe White Gold Jumbo Ellipse Ref. 3738

Patek Philippe White Gold Jumbo Ellipse Ref. 3738

Sold Out

 
Patek Philippe - Patek Philippe Yellow Gold and White Enamel Cufflinks (Objet) - The Keystone Watches

Patek Philippe Yellow Gold and White Enamel Cufflinks (Objet)

Patek Philippe Yellow Gold and White Enamel Cufflinks (Objet)

$3,800 USD
 

Patek Philippe Yellow Gold Lapis Lazuli Ref. 4290

Patek Philippe Yellow Gold Lapis Lazuli Ref. 4290

$38,000 USD
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New Arrivals Preview
 
Cartier Platinum Tank A Guichet Ref. WGTA0236, 2025 Edition (New Arrival)

Cartier Platinum Tank A Guichet Ref. WGTA0236, 2025 Edition (New Arrival)

Cartier Platinum Tank A Guichet Ref. WGTA0236, 2025 Edition (New Arrival)

"Price upon request"
 
Audemars Piguet Yellow Gold Coin Watch (New Arrival)

Audemars Piguet Yellow Gold Coin Watch (New Arrival)

Audemars Piguet Yellow Gold Coin Watch (New Arrival)

$9,500 USD
 
Patek Philippe White Gold Calatrava Watch Ref. 4189 (New Arrival)

Patek Philippe White Gold Calatrava Watch Ref. 4189 (New Arrival)

Patek Philippe White Gold Calatrava Watch Ref. 4189 (New Arrival)

$9,800 USD
 
Rolex Yellow Gold Day-Date Watch Ref. 1803 with Claw Dial (New Arrival)

Rolex Yellow Gold Day-Date Watch Ref. 1803 with Claw Dial (New Arrival)

Rolex Yellow Gold Day-Date Watch Ref. 1803 with Claw Dial (New Arrival)

$18,750 USD
 
Boucheron - Boucheron Yellow Gold Invisible Set Sapphire Watch (New Arrival) - The Keystone Watches

Boucheron Yellow Gold Invisible Set Sapphire Watch (New Arrival)

Boucheron Yellow Gold Invisible Set Sapphire Watch (New Arrival)

$9,500 USD
 
Rolex - Rolex Yellow Gold Cellini Watch Ref. 4014/8 with Orange Dial (New Arrival) - The Keystone Watches

Rolex Yellow Gold Cellini Watch Ref. 4014/8 with Orange Dial (New Arrival)

Rolex Yellow Gold Cellini Watch Ref. 4014/8 with Orange Dial (New Arrival)

$7,500 USD
 
Rolex Steel Submariner Ref. 5513 with Pumkin Lume (New Arrival)

Rolex Steel Submariner Ref. 5513 with Pumkin Lume (New Arrival)

Rolex Steel Submariner Ref. 5513 with Pumkin Lume (New Arrival)

$15,500 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.

Stay in touch.

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