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Patek Philippe - Patek Philippe Yellow Gold Nautilus Watch Ref. 3800 - The Keystone Watches

Patek Philippe Yellow Gold Nautilus Watch Ref. 3800

Patek Philippe Yellow Gold Nautilus Watch Ref. 3800

Sold Out

 

Patek Philippe White Gold Mechanical Watch Ref. 3566

Patek Philippe White Gold Mechanical Watch Ref. 3566

Sold Out

 
Patek Philippe - Patek Philippe White Gold Perpetual Calendar Ref. 5270 - The Keystone Watches

Patek Philippe White Gold Perpetual Calendar Ref. 5270

Patek Philippe White Gold Perpetual Calendar Ref. 5270

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Patek Philippe - Patek Philippe White Gold Bracelet Watch Ref. 3598 - The Keystone Watches

Patek Philippe White Gold Bracelet Watch Ref. 3598

Patek Philippe White Gold Bracelet Watch Ref. 3598

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Patek Philippe - Patek Philippe White Gold Hobnail Ellipse Ref. 3987 - The Keystone Watches

Patek Philippe White Gold Hobnail Ellipse Ref. 3987

Patek Philippe White Gold Hobnail Ellipse Ref. 3987

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Patek Philippe White Gold Calatrava Watch Ref. 3445 on Bracelet

Patek Philippe White Gold Calatrava Watch Ref. 3445 on Bracelet

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Patek Philippe Steel Aquanaut Ref. 5066

Patek Philippe Steel Aquanaut Ref. 5066

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Patek Philippe - Patek Philippe Yellow Gold Calatrava Ref. 2545, Gifted by the Arab American Oil Company (ARAMCO) - The Keystone Watches

Patek Philippe Yellow Gold Calatrava Ref. 2545, Gifted by the Arab American Oil Company (ARAMCO)

Patek Philippe Yellow Gold Calatrava Ref. 2545, Gifted by the Arab American Oil Company (ARAMCO)

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Patek Philippe - Patek Philippe Rose Gold Annual Calendar Chronograph Ref. 5961R with Factory Diamonds - The Keystone Watches

Patek Philippe Rose Gold Annual Calendar Chronograph Ref. 5961R with Factory Diamonds

Patek Philippe Rose Gold Annual Calendar Chronograph Ref. 5961R with Factory Diamonds

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Patek Philippe - Patek Philippe White Gold Calatrava Ref. 3601 - The Keystone Watches

Patek Philippe White Gold Calatrava Ref. 3601

Patek Philippe White Gold Calatrava Ref. 3601

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Patek Philippe - Patek Philippe Yellow Gold Ref. 3604 Retailed by Gubelin - The Keystone Watches

Patek Philippe Yellow Gold Ref. 3604 Retailed by Gubelin

Patek Philippe Yellow Gold Ref. 3604 Retailed by Gubelin

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Patek Philippe - Patek Philippe Rose Gold Annual Calendar Chronograph Ref. 5960 - The Keystone Watches

Patek Philippe Rose Gold Annual Calendar Chronograph Ref. 5960

Patek Philippe Rose Gold Annual Calendar Chronograph Ref. 5960

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Patek Philippe - Patek Philippe Yellow Gold Calatrava Ref. 2428 - The Keystone Watches

Patek Philippe Yellow Gold Calatrava Ref. 2428

Patek Philippe Yellow Gold Calatrava Ref. 2428

Sold Out

 
Patek Philippe - Patek Philippe White Gold Perpetual Calendar Watch Ref. 5136 - The Keystone Watches

Patek Philippe White Gold Perpetual Calendar Watch Ref. 5136

Patek Philippe White Gold Perpetual Calendar Watch Ref. 5136

Sold Out

 
Patek Philippe - Patek Philippe White Gold Ellipse Ref. 3788 - The Keystone Watches

Patek Philippe White Gold Ellipse Ref. 3788

Patek Philippe White Gold Ellipse Ref. 3788

Sold Out

 
Patek Philippe - Patek Philippe White Gold Square Watch Ref. 3404 - The Keystone Watches

Patek Philippe White Gold Square Watch Ref. 3404

Patek Philippe White Gold Square Watch Ref. 3404

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Patek Philippe - Patek Philippe Yellow Gold Perpetual Calendar Ref. 5039 - The Keystone Watches

Patek Philippe Yellow Gold Perpetual Calendar Ref. 5039

Patek Philippe Yellow Gold Perpetual Calendar Ref. 5039

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Patek Philippe Platinum Grand Complication Perpetual Calendar Minute Repeater Watch Ref. 5016

Patek Philippe Platinum Grand Complication Perpetual Calendar Minute Repeater Watch Ref. 5016

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Patek Philippe - Patek Philippe Yellow Gold Calatrava Ref. 3514 - The Keystone Watches

Patek Philippe Yellow Gold Calatrava Ref. 3514

Patek Philippe Yellow Gold Calatrava Ref. 3514

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Patek Philippe - Patek Philippe Yellow Gold Nautilus Ref. 3800 Retailed by Gubelin - The Keystone Watches

Patek Philippe Yellow Gold Nautilus Ref. 3800 Retailed by Gubelin

Patek Philippe Yellow Gold Nautilus Ref. 3800 Retailed by Gubelin

Sold Out

 
Patek Philippe - Patek Philippe White Gold Calatrava Ref. 570 - The Keystone Watches

Patek Philippe White Gold Calatrava Ref. 570

Patek Philippe White Gold Calatrava Ref. 570

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Patek Philippe - Patek Philippe Yellow Gold Nautilus Ref. 3800J - The Keystone Watches

Patek Philippe Yellow Gold Nautilus Ref. 3800J

Patek Philippe Yellow Gold Nautilus Ref. 3800J

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Patek Philippe - Patek Philippe White Gold Mechanical Watch - The Keystone Watches

Patek Philippe White Gold Mechanical Watch

Patek Philippe White Gold Mechanical Watch

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Patek Philippe - Patek Philippe Yellow Gold Calatrava Ref. 3919 on a Bracelet - The Keystone Watches

Patek Philippe Yellow Gold Calatrava Ref. 3919 on a Bracelet

Patek Philippe Yellow Gold Calatrava Ref. 3919 on a Bracelet

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Patek Philippe - Patek Philippe White Gold Bracelet Watch Ref. 3649 with Onyx Dial - The Keystone Watches

Patek Philippe White Gold Bracelet Watch Ref. 3649 with Onyx Dial

Patek Philippe White Gold Bracelet Watch Ref. 3649 with Onyx Dial

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Patek Philippe - Patek Philippe Platinum Annual Calendar Chronograph Ref. 5960P - The Keystone Watches

Patek Philippe Platinum Annual Calendar Chronograph Ref. 5960P

Patek Philippe Platinum Annual Calendar Chronograph Ref. 5960P

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Patek Philippe - Patek Philippe Yellow Gold Ellipse Ref. 3987 - The Keystone Watches

Patek Philippe Yellow Gold Ellipse Ref. 3987

Patek Philippe Yellow Gold Ellipse Ref. 3987

Sold Out

 
Patek Philippe - Patek Philippe Yellow Gold Calatrava Watch Ref. 565 - The Keystone Watches

Patek Philippe Yellow Gold Calatrava Watch Ref. 565

Patek Philippe Yellow Gold Calatrava Watch Ref. 565

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Patek Philippe - Patek Philippe Yellow Gold Calatrava Watch Ref. 2526 - The Keystone Watches

Patek Philippe Yellow Gold Calatrava Watch Ref. 2526

Patek Philippe Yellow Gold Calatrava Watch Ref. 2526

Sold Out

 
Patek Philippe - Patek Philippe Yellow Gold Nautilus Watch Ref. 3800/103 - The Keystone Watches

Patek Philippe Yellow Gold Nautilus Watch Ref. 3800/103

Patek Philippe Yellow Gold Nautilus Watch Ref. 3800/103

Sold Out

 
Patek Philippe - Patek Philippe White Gold Elliipse Watch Ref. 3548 - The Keystone Watches

Patek Philippe White Gold Elliipse Watch Ref. 3548

Patek Philippe White Gold Elliipse Watch Ref. 3548

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Patek Philippe - Patek Philippe Ellipse Skeleton - The Keystone Watches

Patek Philippe Ellipse Skeleton

Patek Philippe Ellipse Skeleton

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Patek Philippe - Patek Philippe Yellow Gold Vintage Watch Ref. 3858 - The Keystone Watches

Patek Philippe Yellow Gold Vintage Watch Ref. 3858

Patek Philippe Yellow Gold Vintage Watch Ref. 3858

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Patek Philippe - Patek Philippe White Gold Chronograph Ref. 5170G - The Keystone Watches

Patek Philippe White Gold Chronograph Ref. 5170G

Patek Philippe White Gold Chronograph Ref. 5170G

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

Patek Philippe Platinum Perpetual Calendar Chronograph Watch Ref. 5970

Patek Philippe Platinum Perpetual Calendar Chronograph Watch Ref. 5970

Sold Out

 
Patek Philippe - Patek Philippe Yellow Gold Nautilus Ref. 3800 with Factory Diamond and Ruby Dial - The Keystone Watches

Patek Philippe Yellow Gold Nautilus Ref. 3800 with Factory Diamond and Ruby Dial

Patek Philippe Yellow Gold Nautilus Ref. 3800 with Factory Diamond and Ruby Dial

Sold Out

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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)

$150,000 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
 
Patek Philiipe White Gold Calatrava Watch Ref. 3919 (New Arrival)

Patek Philiipe White Gold Calatrava Watch Ref. 3919 (New Arrival)

Patek Philiipe White Gold Calatrava Watch Ref. 3919 (New Arrival)

$15,000 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.

Stay in touch.

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