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Patek Philippe White Gold Annual Calendar Ref. 5205

Patek Philippe White Gold Annual Calendar Ref. 5205

Sold Out

 
Patek Philippe Yellow Gold Calatrava Ref. 3796

Patek Philippe Yellow Gold Calatrava Ref. 3796

Patek Philippe Yellow Gold Calatrava Ref. 3796

Sold Out

 

Patek Philippe Yellow Gold Watch Ref. 3506

Patek Philippe Yellow Gold Watch Ref. 3506

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Patek Philippe - Patek Philippe White Gold Ellipse Ref. 4223 - The Keystone Watches

Patek Philippe White Gold Ellipse Ref. 4223

Patek Philippe White Gold Ellipse Ref. 4223

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Patek Philippe - Patek Philippe White Gold Mini Ellipse Ref. 3349 - The Keystone Watches

Patek Philippe White Gold Mini Ellipse Ref. 3349

Patek Philippe White Gold Mini Ellipse Ref. 3349

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Patek Philippe - Patek Philippe White Gold Ellipse Ref. 3546 - The Keystone Watches

Patek Philippe White Gold Ellipse Ref. 3546

Patek Philippe White Gold Ellipse Ref. 3546

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Patek Philippe - Patek Philippe Platinum Calatrava Watch Ref. 570 with Archive - The Keystone Watches

Patek Philippe Platinum Calatrava Watch Ref. 570 with Archive

Patek Philippe Platinum Calatrava Watch Ref. 570 with Archive

$165,000 USD
 
Patek Philippe - Patek Philippe Steel Aquanaut Ref. 5065 (New Arrival) - The Keystone Watches

Patek Philippe Steel Aquanaut Ref. 5065 (New Arrival)

Patek Philippe Steel Aquanaut Ref. 5065 (New Arrival)

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Patek Philippe - Patek Philippe Rose Gold Calatrava Ref. 5022 on Bracelet - The Keystone Watches

Patek Philippe Rose Gold Calatrava Ref. 5022 on Bracelet

Patek Philippe Rose Gold Calatrava Ref. 5022 on Bracelet

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Patek Philippe White Gold Ellipse Ref. 3544 with JPE Bracelet

Patek Philippe White Gold Ellipse Ref. 3544 with JPE Bracelet

Patek Philippe White Gold Ellipse Ref. 3544 with JPE Bracelet

Sold Out

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

Patek Philippe White Gold Calatrava Ref. 3919

Patek Philippe White Gold Calatrava Ref. 3919

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Retrograde Ref. 5059P (New Arrival) - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Retrograde Ref. 5059P (New Arrival)

Patek Philippe Platinum Perpetual Calendar Retrograde Ref. 5059P (New Arrival)

Sold Out

 

Patek Philippe Yellow Gold Automatic Ellipse Ref. 3738

Patek Philippe Yellow Gold Automatic Ellipse Ref. 3738

Sold Out

 
Patek Philippe Rose Gold Square Watch Ref. 2472 with Ribbed Fluted Case and Bracelet

Patek Philippe Rose Gold Square Watch Ref. 2472 with Ribbed Fluted Case and Bracelet

Patek Philippe Rose Gold Square Watch Ref. 2472 with Ribbed Fluted Case and Bracelet

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Patek Philippe - Patek Philippe White Gold Annual Calendar Ref. 5396 - The Keystone Watches

Patek Philippe White Gold Annual Calendar Ref. 5396

Patek Philippe White Gold Annual Calendar Ref. 5396

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Patek Philippe - Patek Philippe Steel Aquanaut Ref. 5066 with Box and Papers (New Arrival) - The Keystone Watches

Patek Philippe Steel Aquanaut Ref. 5066 with Box and Papers (New Arrival)

Patek Philippe Steel Aquanaut Ref. 5066 with Box and Papers (New Arrival)

Sold Out

 

Patek Philippe Steel Nautilus Ref. 3800

Patek Philippe Steel Nautilus Ref. 3800

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Patek Philippe - Patek Philippe Yellow Gold Calatrava Ref. 96 - The Keystone Watches

Patek Philippe Yellow Gold Calatrava Ref. 96

Patek Philippe Yellow Gold Calatrava Ref. 96

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Patek Philippe - Patek Philippe Yellow Gold Chronograph Watch Ref. 5070 with Archive - The Keystone Watches

Patek Philippe Yellow Gold Chronograph Watch Ref. 5070 with Archive

Patek Philippe Yellow Gold Chronograph Watch Ref. 5070 with Archive

Sold Out

 
Patek Philippe - Patek Philippe White Gold Ellipse Ref. 4179 - The Keystone Watches

Patek Philippe White Gold Ellipse Ref. 4179

Patek Philippe White Gold Ellipse Ref. 4179

Sold Out

 
Patek Philippe - Patek Philippe White Gold Ellipse Ref. 3798 - The Keystone Watches

Patek Philippe White Gold Ellipse Ref. 3798

Patek Philippe White Gold Ellipse Ref. 3798

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Patek Philippe - Patek Philippe White Gold Calatrava Ref. 3588 with Breguet Numerals - The Keystone Watches

Patek Philippe White Gold Calatrava Ref. 3588 with Breguet Numerals

Patek Philippe White Gold Calatrava Ref. 3588 with Breguet Numerals

$15,500 USD
 
Patek Philippe - Patek Philippe Rose Gold Calatrava Watch Ref. 96 - The Keystone Watches

Patek Philippe Rose Gold Calatrava Watch Ref. 96

Patek Philippe Rose Gold Calatrava Watch Ref. 96

Sold Out

 

Patek White Gold Pocket Watch with Diamond Bezel (New Arrival)

Patek White Gold Pocket Watch with Diamond Bezel (New Arrival)

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Patek Philippe - Patek Philippe White Gold World Time Enamel Watch Ref. 5231 - The Keystone Watches

Patek Philippe White Gold World Time Enamel Watch Ref. 5231

Patek Philippe White Gold World Time Enamel Watch Ref. 5231

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Patek Philippe Yellow Gold Annual Calendar Ref. 5146

Patek Philippe Yellow Gold Annual Calendar Ref. 5146

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Patek Philippe - Patek Philippe Platinum World Time Ref. 5130, Dubai Edition - The Keystone Watches

Patek Philippe Platinum World Time Ref. 5130, Dubai Edition

Patek Philippe Platinum World Time Ref. 5130, Dubai Edition

Sold Out

 

Patek Philippe Yellow Gold Calatrava Ref. 5035 with Original Box and Papers

Patek Philippe Yellow Gold Calatrava Ref. 5035 with Original Box and Papers

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Patek Philippe - Patek Philippe Platinum Annual Calendar Chronograph Ref. 5960 with Original Box and Papers - The Keystone Watches

Patek Philippe Platinum Annual Calendar Chronograph Ref. 5960 with Original Box and Papers

Patek Philippe Platinum Annual Calendar Chronograph Ref. 5960 with Original Box and Papers

Sold Out

 
Patek Philippe - Patek Philippe White Gold Perpetual Calendar Chronograph Watch Ref. 5270G-013 with Original Box and Papers - The Keystone Watches

Patek Philippe White Gold Perpetual Calendar Chronograph Watch Ref. 5270G-013 with Original Box and Papers

Patek Philippe White Gold Perpetual Calendar Chronograph Watch Ref. 5270G-013 with Original Box and Papers

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Patek Philippe - Patek Philippe White Gold Annual Calendar Tiffany & Co Watch. Ref. 5396G-012 - The Keystone Watches

Patek Philippe White Gold Annual Calendar Tiffany & Co Watch. Ref. 5396G-012

Patek Philippe White Gold Annual Calendar Tiffany & Co Watch. Ref. 5396G-012

Sold Out

 
Patek Philippe - Patek Philippe Yellow Gold Chronograph Ref. 3970, Fourth Series - The Keystone Watches

Patek Philippe Yellow Gold Chronograph Ref. 3970, Fourth Series

Patek Philippe Yellow Gold Chronograph Ref. 3970, Fourth Series

Sold Out

 
Patek Philippe Yellow Gold Pocket Watch Minute Repeater, Circa 1905

Patek Philippe Yellow Gold Pocket Watch Minute Repeater, Circa 1905

Patek Philippe Yellow Gold Pocket Watch Minute Repeater, Circa 1905

$28,000 USD
 
Patek Philippe - Patek Philippe Platinum Perpetual Calendar Minute Repeater Ref. 5074, Single Sealed - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Minute Repeater Ref. 5074, Single Sealed

Patek Philippe Platinum Perpetual Calendar Minute Repeater Ref. 5074, Single Sealed

"Price upon request"
 
Patek Philippe - Patek Philippe Yellow Gold Perpetual Calendar Ref. 5040J - The Keystone Watches

Patek Philippe Yellow Gold Perpetual Calendar Ref. 5040J

Patek Philippe Yellow Gold Perpetual Calendar Ref. 5040J

Sold Out

 

Patek Philippe Yellow Gold Ellipse Ref. 3738

Patek Philippe Yellow Gold Ellipse Ref. 3738

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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