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Patek Philippe Yellow Gold Calatrava Watch Ref. 1578 (New Arrival)

Patek Philippe Yellow Gold Calatrava Watch Ref. 1578 (New Arrival)

Patek Philippe Yellow Gold Calatrava Watch Ref. 1578 (New Arrival)

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Vacheron Constantin Yellow Gold Opal Dial Bracelet Watch Ref. 33030

Vacheron Constantin Yellow Gold Opal Dial Bracelet Watch Ref. 33030

Vacheron Constantin Yellow Gold Opal Dial Bracelet Watch Ref. 33030

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Cartier Yellow Gold NSO Crash Watch with Blue Numerals

Cartier Yellow Gold NSO Crash Watch with Blue Numerals

Cartier Yellow Gold NSO Crash Watch with Blue Numerals

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Franck Muller - Franck Muller Platinum Perpetual Calendar Retrograde Tachymeter Chronograph - The Keystone Watches

Franck Muller Platinum Perpetual Calendar Retrograde Tachymeter Chronograph

Franck Muller Platinum Perpetual Calendar Retrograde Tachymeter Chronograph

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Patek Philippe White Gold Perpetual Calendar Ref. 5041, Single Sealed (New Arrival)

Patek Philippe White Gold Perpetual Calendar Ref. 5041, Single Sealed (New Arrival)

Patek Philippe White Gold Perpetual Calendar Ref. 5041, Single Sealed (New Arrival)

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Patek Philippe Platinum Perpetual Calendar Watch Ref. 5040P, Single Sealed (New Arrival)

Patek Philippe Platinum Perpetual Calendar Watch Ref. 5040P, Single Sealed (New Arrival)

Patek Philippe Platinum Perpetual Calendar Watch Ref. 5040P, Single Sealed (New Arrival)

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Cartier White Gold Diamond & Sapphire Panthere Watch Ref. 8669

Cartier White Gold Diamond & Sapphire Panthere Watch Ref. 8669

Cartier White Gold Diamond & Sapphire Panthere Watch Ref. 8669

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Audemars Piguet - Audemars Piguet Platinum Skeletonized Perpetual Calendar Diamond Dial Bracelet Watch Ref. 25669PT, One of Three Made - The Keystone Watches

Audemars Piguet Platinum Skeletonized Perpetual Calendar Diamond Dial Bracelet Watch Ref. 25669PT, One of Three Made

Audemars Piguet Platinum Skeletonized Perpetual Calendar Diamond Dial Bracelet Watch Ref. 25669PT, One of Three Made

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Patek Philippe Perpetual Calendar Watch Ref. 3448, Late Series with Sapphire Crystal

Patek Philippe Perpetual Calendar Watch Ref. 3448, Late Series with Sapphire Crystal

Patek Philippe Perpetual Calendar Watch Ref. 3448, Late Series with Sapphire Crystal

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Cartier Yellow Gold Diamond Flower Cover Watch

Cartier Yellow Gold Diamond Flower Cover Watch

Cartier Yellow Gold Diamond Flower Cover Watch

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Rolex - Rolex Yellow Gold Herringbone Diamond Dial Decagon Bracelet Watch Ref. 4953 - The Keystone Watches

Rolex Yellow Gold Herringbone Diamond Dial Decagon Bracelet Watch Ref. 4953

Rolex Yellow Gold Herringbone Diamond Dial Decagon Bracelet Watch Ref. 4953

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Patek Philippe Platinum Perpetual Calendar Black Dial Watch Ref. 3970

Patek Philippe Platinum Perpetual Calendar Black Dial Watch Ref. 3970

Patek Philippe Platinum Perpetual Calendar Black Dial Watch Ref. 3970

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Rolex Yellow Gold Day-Date Ref. 18238 with Howlite Dial

Rolex Yellow Gold Day-Date Ref. 18238 with Howlite Dial

Rolex Yellow Gold Day-Date Ref. 18238 with Howlite Dial

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Patek Philippe Pink Gold Perpetual Calendar Chronograph Watch Ref. 5970 (Archive and Second Caseback)

Patek Philippe Pink Gold Perpetual Calendar Chronograph Watch Ref. 5970 (Archive and Second Caseback)

Patek Philippe Pink Gold Perpetual Calendar Chronograph Watch Ref. 5970 (Archive and Second Caseback)

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Rolex Steel Oyster Cosmograph Daytona Ref. 6265 with Black Dial

Rolex Steel Oyster Cosmograph Daytona Ref. 6265 with Black Dial

Rolex Steel Oyster Cosmograph Daytona Ref. 6265 with Black Dial

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Audemars Piguet - Audemars Piguet Yellow Gold Disco Volante with Concentric Case, Dial and Integrated Bracelet - The Keystone Watches

Audemars Piguet Yellow Gold Disco Volante with Concentric Case, Dial and Integrated Bracelet

Audemars Piguet Yellow Gold Disco Volante with Concentric Case, Dial and Integrated Bracelet

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Rolex Steel Paul Newman Daytona Ref. 6239

Rolex Steel Paul Newman Daytona Ref. 6239

Rolex Steel Paul Newman Daytona Ref. 6239

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Rolex Yellow Gold Oyster Perpetual Day-Date Ref. 1803

Rolex Yellow Gold Oyster Perpetual Day-Date Ref. 1803

Rolex Yellow Gold Oyster Perpetual Day-Date Ref. 1803

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Patek Philippe Rare White Gold Cloisonne Middle Ages Set of 4 Watches Ref. 5075

Patek Philippe Rare White Gold Cloisonne Middle Ages Set of 4 Watches Ref. 5075

Patek Philippe Rare White Gold Cloisonne Middle Ages Set of 4 Watches Ref. 5075

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Berneron Yellow Gold Mirage with Tigers Eye Dial

Berneron Yellow Gold Mirage with Tigers Eye Dial

Berneron Yellow Gold Mirage with Tigers Eye Dial

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Rolex Steel Oyster Perpetual Red Submariner Ref. 1680

Rolex Steel Oyster Perpetual Red Submariner Ref. 1680

Rolex Steel Oyster Perpetual Red Submariner Ref. 1680

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Patek Philippe Yellow Gold Calatrava Watch Ref. 3520, Retailed by Tiffany & Co.

Patek Philippe Yellow Gold Calatrava Watch Ref. 3520, Retailed by Tiffany & Co.

Patek Philippe Yellow Gold Calatrava Watch Ref. 3520, Retailed by Tiffany & Co.

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New Arrivals Preview
 
Cartier Platinum Santos Vendome Diamond Watch (New Arrival)

Cartier Platinum Santos Vendome Diamond Watch (New Arrival)

Cartier Platinum Santos Vendome Diamond Watch (New Arrival)

$45,000 USD
 
Patek Philippe Platinum Calatrava Ref. 5196 with Original Hang Tag (New Arrival)

Patek Philippe Platinum Calatrava Ref. 5196 with Original Hang Tag (New Arrival)

Patek Philippe Platinum Calatrava Ref. 5196 with Original Hang Tag (New Arrival)

$32,000 USD
 
Patek Philippe White Gold Ref. 2592 (New Arrival)

Patek Philippe White Gold Ref. 2592 (New Arrival)

Patek Philippe White Gold Ref. 2592 (New Arrival)

$11,000 USD
 
Audemars Piguet Round UFO-Style Bracelet Watch (New Arrival)

Audemars Piguet Round UFO-Style Bracelet Watch (New Arrival)

Audemars Piguet Round UFO-Style Bracelet Watch (New Arrival)

$10,500 USD
 
Tissot Steel Chronograph with Black Gilt Dial (New Arrival)

Tissot Steel Chronograph with Black Gilt Dial (New Arrival)

Tissot Steel Chronograph with Black Gilt Dial (New Arrival)

$16,000 USD
 
Vacheron Constantin - Vacheron Constantin Yellow Gold Chronograph Watch Ref. 4178 with Important Provenance (New Arrival) - The Keystone Watches

Vacheron Constantin Yellow Gold Chronograph Watch Ref. 4178 with Important Provenance (New Arrival)

Vacheron Constantin Yellow Gold Chronograph Watch Ref. 4178 with Important Provenance (New Arrival)

$60,000 USD
 
Chopard Yellow Gold Happy Diamonds Sapphire & Diamonds Ref. 27/6258-23 (New Arrival)

Chopard Yellow Gold Happy Diamonds Sapphire & Diamonds Ref. 27/6258-23 (New Arrival)

Chopard Yellow Gold Happy Diamonds Sapphire & Diamonds Ref. 27/6258-23 (New Arrival)

$11,500 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.

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