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Breguet Platinum and Rose Gold Tourbillon Ref. 3457 (New Arrival)

Breguet Platinum and Rose Gold Tourbillon Ref. 3457 (New Arrival)

Breguet Platinum and Rose Gold Tourbillon Ref. 3457 (New Arrival)

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Breguet Yellow Gold Peseux 260 Empire Watch, Circa 1951

Breguet Yellow Gold Peseux 260 Empire Watch, Circa 1951

Breguet Yellow Gold Peseux 260 Empire Watch, Circa 1951

"Price upon request"
 
Breguet Platinum Skeleton Tourbillon Watch Ref. 3355 (New Arrival)

Breguet Platinum Skeleton Tourbillon Watch Ref. 3355 (New Arrival)

Breguet Platinum Skeleton Tourbillon Watch Ref. 3355 (New Arrival)

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Audemars Piguet Platinum Quantieme Perpetual Ref. 25548 with Rare Silver Dial (New Arrival)

Audemars Piguet Platinum Quantieme Perpetual Ref. 25548 with Rare Silver Dial (New Arrival)

Audemars Piguet Platinum Quantieme Perpetual Ref. 25548 with Rare Silver Dial (New Arrival)

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Patek Philippe Tropical Dial Nautilus Ref. 3700 with Original Box and Papers

Patek Philippe Tropical Dial Nautilus Ref. 3700 with Original Box and Papers

Patek Philippe Tropical Dial Nautilus Ref. 3700 with Original Box and Papers

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Rolex Paul Newman Daytona Ref. 6239

Rolex Paul Newman Daytona Ref. 6239

Rolex Paul Newman Daytona Ref. 6239

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Cartier Yellow Gold London Cintree Large, 1972

Cartier Yellow Gold London Cintree Large, 1972

Cartier Yellow Gold London Cintree Large, 1972

"Price upon request"
 
Audemars Piguet White Gold Watch with Baguette Diamonds and Onyx Dial

Audemars Piguet White Gold Watch with Baguette Diamonds and Onyx Dial

Audemars Piguet White Gold Watch with Baguette Diamonds and Onyx Dial

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Cartier Yellow Gold Tank Cintree Watch

Cartier Yellow Gold Tank Cintree Watch

Cartier Yellow Gold Tank Cintree Watch

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Rolex White Gold Day-Date Ref. 19019

Rolex White Gold Day-Date Ref. 19019

Rolex White Gold Day-Date Ref. 19019

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Rolex Yellow Gold Day-Date Ref. 1803 with Original Warranty, Circa 1976

Rolex Yellow Gold Day-Date Ref. 1803 with Original Warranty, Circa 1976

Rolex Yellow Gold Day-Date Ref. 1803 with Original Warranty, Circa 1976

Sold Out

 
Rolex Steel Daytona Big Red Ref. 6263 in Incredible Original Condition

Rolex Steel Daytona Big Red Ref. 6263 in Incredible Original Condition

Rolex Steel Daytona Big Red Ref. 6263 in Incredible Original Condition

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Cartier Yellow Gold Mini Tank, Circa 1970s

Cartier Yellow Gold Mini Tank, Circa 1970s

Cartier Yellow Gold Mini Tank, Circa 1970s

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Audemars Piguet Yellow Gold Coin Watch (New Arrival)

Audemars Piguet Yellow Gold Coin Watch (New Arrival)

Audemars Piguet Yellow Gold Coin Watch (New Arrival)

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Patek Philippe White Gold Gondolo Ref. 3553

Patek Philippe White Gold Gondolo Ref. 3553

Patek Philippe White Gold Gondolo Ref. 3553

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Cartier Yellow Gold Tank with Paris Dial

Cartier Yellow Gold Tank with Paris Dial

Cartier Yellow Gold Tank with Paris Dial

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A. Lange & Sohne Platinum Langematik Perpetual Calendar Ref. 310.025

A. Lange & Sohne Platinum Langematik Perpetual Calendar Ref. 310.025

A. Lange & Sohne Platinum Langematik Perpetual Calendar Ref. 310.025

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Cartier White Gold Tank Watch Ref. 78086

Cartier White Gold Tank Watch Ref. 78086

Cartier White Gold Tank Watch Ref. 78086

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Breguet Yellow Gold Classique Watch Ref. 5930

Breguet Yellow Gold Classique Watch Ref. 5930

Breguet Yellow Gold Classique Watch Ref. 5930

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Cartier Yellow Gold Pasha Chronograph Ref. W3014051

Cartier Yellow Gold Pasha Chronograph Ref. W3014051

Cartier Yellow Gold Pasha Chronograph Ref. W3014051

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Audemars Piguet Yellow Gold Quantieme Perpetual Ref. 5548

Audemars Piguet Yellow Gold Quantieme Perpetual Ref. 5548

Audemars Piguet Yellow Gold Quantieme Perpetual Ref. 5548

Sold Out

 
Cartier Yellow Gold Tonneau Watch, Paris 1991

Cartier Yellow Gold Tonneau Watch, Paris 1991

Cartier Yellow Gold Tonneau Watch, Paris 1991

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New Arrivals Preview
 
Cartier Tank Coussin Bamboo Ref. 78102 (New Arrival)

Cartier Tank Coussin Bamboo Ref. 78102 (New Arrival)

Cartier Tank Coussin Bamboo Ref. 78102 (New Arrival)

$125,000 USD
 
Cartier Tank Allongee Elongated, Circa 1940 (New Arrival)

Cartier Tank Allongee Elongated, Circa 1940 (New Arrival)

Cartier Tank Allongee Elongated, Circa 1940 (New Arrival)

$62,000 USD
 
Patek Philippe White Gold Rectangular Art Deco Watch (New Arrival)

Patek Philippe White Gold Rectangular Art Deco Watch (New Arrival)

Patek Philippe White Gold Rectangular Art Deco Watch (New Arrival)

$55,000 USD
 
Cartier Platinum Tank Watch Ref. 16111 (New Arrival)

Cartier Platinum Tank Watch Ref. 16111 (New Arrival)

Cartier Platinum Tank Watch Ref. 16111 (New Arrival)

$21,000 USD
 
Patek Philippe Yellow Gold Chronograph Watch Ref. 591, Incredible Original Condition (New Arrival)

Patek Philippe Yellow Gold Chronograph Watch Ref. 591, Incredible Original Condition (New Arrival)

Patek Philippe Yellow Gold Chronograph Watch Ref. 591, Incredible Original Condition (New Arrival)

$175,000 USD
 
Patek Philippe Yellow Gold Enamel Dial Calatrava Watch Ref. 2526 (New Arrival)

Patek Philippe Yellow Gold Enamel Dial Calatrava Watch Ref. 2526 (New Arrival)

Patek Philippe Yellow Gold Enamel Dial Calatrava Watch Ref. 2526 (New Arrival)

$70,000 USD
 
Piaget Yellow Gold Lapis Lazuli & Jade Cuff Watch (New Arrivals)

Piaget Yellow Gold Lapis Lazuli & Jade Cuff Watch (New Arrivals)

Piaget Yellow Gold Lapis Lazuli & Jade Cuff Watch (New Arrivals)

$48,000 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.

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