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Patek Philippe - Patek Philippe White Gold Gondolo Trapeze Ref. 5489G - The Keystone Watches

Patek Philippe White Gold Gondolo Trapeze Ref. 5489G

Patek Philippe White Gold Gondolo Trapeze Ref. 5489G

Sold Out

 
Patek Philippe - Patek Philippe Yellow Gold Nautilus Ref. 4700 - The Keystone Watches

Patek Philippe Yellow Gold Nautilus Ref. 4700

Patek Philippe Yellow Gold Nautilus Ref. 4700

$50,000 USD
 
Patek Philippe Yellow Gold Calatrava Watch Ref. 2593, Retailed by Tiffany & Co.

Patek Philippe Yellow Gold Calatrava Watch Ref. 2593, Retailed by Tiffany & Co.

Patek Philippe Yellow Gold Calatrava Watch Ref. 2593, Retailed by Tiffany & Co.

$12,000 USD
 
Patek Philippe - Patek Philippe White Gold Vintage Ladies Watch Ref. 4217 - The Keystone Watches

Patek Philippe White Gold Vintage Ladies Watch Ref. 4217

Patek Philippe White Gold Vintage Ladies Watch Ref. 4217

Sold Out

 
Patek White Gold Vintage Ellipse with Original Diamonds Ref. 4177

Patek White Gold Vintage Ellipse with Original Diamonds Ref. 4177

Patek White Gold Vintage Ellipse with Original Diamonds Ref. 4177

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Patek Philippe - Patek Philippe White Gold Calatrava Ref. 3468 with Original Warranty - The Keystone Watches

Patek Philippe White Gold Calatrava Ref. 3468 with Original Warranty

Patek Philippe White Gold Calatrava Ref. 3468 with Original Warranty

Sold Out

 
Patek Philippe Rose Gold Nautilus Chronograph Watch Ref. 5980, Tiffany & Co., 2018

Patek Philippe Rose Gold Nautilus Chronograph Watch Ref. 5980, Tiffany & Co., 2018

Patek Philippe Rose Gold Nautilus Chronograph Watch Ref. 5980, Tiffany & Co., 2018

Sold Out

 
Patek Philippe White Gold Perpetual Calendar Watch Ref. 5040

Patek Philippe White Gold Perpetual Calendar Watch Ref. 5040

Patek Philippe White Gold Perpetual Calendar Watch Ref. 5040

$44,000 USD
 
Patek Philippe - Patek Philippe Yellow Gold Nautilus Watch Ref. 3700 - The Keystone Watches

Patek Philippe Yellow Gold Nautilus Watch Ref. 3700

Patek Philippe Yellow Gold Nautilus Watch Ref. 3700

Sold Out

 
Patek Philippe Yellow Gold Neptune Moonphase Power Reserve Ref. 5085

Patek Philippe Yellow Gold Neptune Moonphase Power Reserve Ref. 5085

Patek Philippe Yellow Gold Neptune Moonphase Power Reserve Ref. 5085

Sold Out

 
Patek Philippe Yellow Gold World Time Watch Ref. 1415

Patek Philippe Yellow Gold World Time Watch Ref. 1415

Patek Philippe Yellow Gold World Time Watch Ref. 1415

"Price upon request"
 

Patek Philippe White Gold Annual Calendar Ref. 5146

Patek Philippe White Gold Annual Calendar Ref. 5146

Sold Out

 
Patek Philippe White Gold Annual Calendar Ref. 5146

Patek Philippe White Gold Annual Calendar Ref. 5146

Patek Philippe White Gold Annual Calendar Ref. 5146

Sold Out

 
Patek Philippe - Patek Philippe Yellow Gold Vintage Watch Ref. 3319 Retailed by Tiffany & Co. - The Keystone Watches

Patek Philippe Yellow Gold Vintage Watch Ref. 3319 Retailed by Tiffany & Co.

Patek Philippe Yellow Gold Vintage Watch Ref. 3319 Retailed by Tiffany & Co.

Sold Out

 
Patek Philippe - Patek Philippe Yellow Gold Nautilus Original Diamonds Watch Ref. 3900 - The Keystone Watches

Patek Philippe Yellow Gold Nautilus Original Diamonds Watch Ref. 3900

Patek Philippe Yellow Gold Nautilus Original Diamonds Watch Ref. 3900

Sold Out

 
Patek Philippe White Gold Ellipse Diamond Ref. 3377

Patek Philippe White Gold Ellipse Diamond Ref. 3377

Patek Philippe White Gold Ellipse Diamond Ref. 3377

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 - Patek Philippe Yellow Gold Annual Calendar Watch Ref. 5035J - The Keystone Watches

Patek Philippe Yellow Gold Annual Calendar Watch Ref. 5035J

Patek Philippe Yellow Gold Annual Calendar Watch Ref. 5035J

Sold Out

 
Patek Philippe White Gold Backwind Calatrava Ref. 3563 with Original Warranty

Patek Philippe White Gold Backwind Calatrava Ref. 3563 with Original Warranty

Patek Philippe White Gold Backwind Calatrava Ref. 3563 with Original Warranty

Sold Out

 

Patek Philippe Yellow Gold Gondolo Ref. 5014

Patek Philippe Yellow Gold Gondolo Ref. 5014

Sold Out

 
Patek Philippe - Patek Philippe White Gold Perpetual Calendar Chronograph Ref. 3970 (New Arrival) - The Keystone Watches

Patek Philippe White Gold Perpetual Calendar Chronograph Ref. 3970 (New Arrival)

Patek Philippe White Gold Perpetual Calendar Chronograph Ref. 3970 (New Arrival)

Sold Out

 

Patek Philippe Yellow Gold Ellipse Ref. 3738

Patek Philippe Yellow Gold Ellipse Ref. 3738

Sold Out

 
Patek Philippe - Patek Philippe Yellow Gold Tasti Tondi Chronograph Watch Ref. 1463 on Gay Freres Bracelet - The Keystone Watches

Patek Philippe Yellow Gold Tasti Tondi Chronograph Watch Ref. 1463 on Gay Freres Bracelet

Patek Philippe Yellow Gold Tasti Tondi Chronograph Watch Ref. 1463 on Gay Freres Bracelet

$185,000 USD
 
Patek Philippe - Patek Philippe Yellow Gold Perpetual Calendar Minute Repeater Ref. 5013 - The Keystone Watches

Patek Philippe Yellow Gold Perpetual Calendar Minute Repeater Ref. 5013

Patek Philippe Yellow Gold Perpetual Calendar Minute Repeater Ref. 5013

Sold Out

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

Patek Philippe Yellow Gold Nautilus Ref. 3800 with Diamond Bezel and Ceramic Dial

Patek Philippe Yellow Gold Nautilus Ref. 3800 with Diamond Bezel and Ceramic Dial

Sold Out

 
Patek Philippe - Patek Philippe Yellow Gold Watch Ref. 4890 - The Keystone Watches

Patek Philippe Yellow Gold Watch Ref. 4890

Patek Philippe Yellow Gold Watch Ref. 4890

Sold Out

 
Patek Philippe - Patek Philippe Yellow Gold Mini Calatrava Ref. 3276 - The Keystone Watches

Patek Philippe Yellow Gold Mini Calatrava Ref. 3276

Patek Philippe Yellow Gold Mini Calatrava Ref. 3276

Sold Out

 
Patek Philippe - Patek Philippe Platinum Perpetual Calendar Watch Ref. 5040 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Watch Ref. 5040

Patek Philippe Platinum Perpetual Calendar Watch Ref. 5040

$55,000 USD
 
Patek Philippe - Patek Philippe Ellipse Blue Cufflinks and Tie Clip Set (Objet) - The Keystone Watches

Patek Philippe Ellipse Blue Cufflinks and Tie Clip Set (Objet)

Patek Philippe Ellipse Blue Cufflinks and Tie Clip Set (Objet)

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Patek Philippe - Patek Philippe White Gold Vintage Square Watch Ref. 4222 - The Keystone Watches

Patek Philippe White Gold Vintage Square Watch Ref. 4222

Patek Philippe White Gold Vintage Square Watch Ref. 4222

Sold Out

 
Patek Philippe Steel Aquanaut Ref. 5060 with Original Papers

Patek Philippe Steel Aquanaut Ref. 5060 with Original Papers

Patek Philippe Steel Aquanaut Ref. 5060 with Original Papers

$46,500 USD
 
Patek Philippe - Patek Philippe Yellow Gold Vintage Automatic Watch Ref. 3861/02 with Papers - The Keystone Watches

Patek Philippe Yellow Gold Vintage Automatic Watch Ref. 3861/02 with Papers

Patek Philippe Yellow Gold Vintage Automatic Watch Ref. 3861/02 with Papers

Sold Out

 
Patek Philippe - Patek Philippe White Gold Ellipse Ref. 4175 with Khanjar Dial - The Keystone Watches

Patek Philippe White Gold Ellipse Ref. 4175 with Khanjar Dial

Patek Philippe White Gold Ellipse Ref. 4175 with Khanjar Dial

$10,500 USD
 
Patek Philippe White Gold Backwind Calatrava Ref. 3563

Patek Philippe White Gold Backwind Calatrava Ref. 3563

Patek Philippe White Gold Backwind Calatrava Ref. 3563

$16,000 USD
 
Patek Philippe - Patek Philippe White Gold Annual Calendar Ref. 5396G-014 - The Keystone Watches

Patek Philippe White Gold Annual Calendar Ref. 5396G-014

Patek Philippe White Gold Annual Calendar Ref. 5396G-014

Sold Out

 
Patek Philippe - Patek Philippe White Gold Golden Ellipse Ref. 3566 - The Keystone Watches

Patek Philippe White Gold Golden Ellipse Ref. 3566

Patek Philippe White Gold Golden Ellipse Ref. 3566

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)

"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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