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Cartier - Cartier Yellow Gold Cabriolet Reversible Watch - The Keystone Watches

Cartier Yellow Gold Cabriolet Reversible Watch

Cartier Yellow Gold Cabriolet Reversible Watch

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Cartier - Cartier Yellow Gold Tank Mechanical Watch on a Bracelet - The Keystone Watches

Cartier Yellow Gold Tank Mechanical Watch on a Bracelet

Cartier Yellow Gold Tank Mechanical Watch on a Bracelet

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Cartier - Cartier Yellow Gold Leather Watch, As Seen in George Gordons Cartier Book - The Keystone Watches

Cartier Yellow Gold Leather Watch, As Seen in George Gordons Cartier Book

Cartier Yellow Gold Leather Watch, As Seen in George Gordons Cartier Book

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Cartier - Cartier Yellow Gold Jumbo Tank Gondole Watch - The Keystone Watches

Cartier Yellow Gold Jumbo Tank Gondole Watch

Cartier Yellow Gold Jumbo Tank Gondole Watch

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Cartier - Cartier Yellow Gold Tank Chinoise Watch, 1970s - The Keystone Watches

Cartier Yellow Gold Tank Chinoise Watch, 1970s

Cartier Yellow Gold Tank Chinoise Watch, 1970s

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Cartier - Cartier Yellow Gold Tank Cintree Watch, 1930s - The Keystone Watches

Cartier Yellow Gold Tank Cintree Watch, 1930s

Cartier Yellow Gold Tank Cintree Watch, 1930s

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Piaget - Piaget White Gold Diamond & Ruby Bracelet Watch - The Keystone Watches

Piaget White Gold Diamond & Ruby Bracelet Watch

Piaget White Gold Diamond & Ruby Bracelet Watch

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Gubelin - Gubelin Yellow Gold Lapis Watch - The Keystone Watches

Gubelin Yellow Gold Lapis Watch

Gubelin Yellow Gold Lapis Watch

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Cartier - Cartier Platinum Santos Watch, Circa 1920s - The Keystone Watches

Cartier Platinum Santos Watch, Circa 1920s

Cartier Platinum Santos Watch, Circa 1920s

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Piaget - Piaget White Gold Onyx Bracelet Watch - The Keystone Watches

Piaget White Gold Onyx Bracelet Watch

Piaget White Gold Onyx Bracelet Watch

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Piaget - Piaget White Gold Lapis Link Bracelet Watch - The Keystone Watches

Piaget White Gold Lapis Link Bracelet Watch

Piaget White Gold Lapis Link Bracelet Watch

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Cartier - Cartier Yellow Gold Tank Normale Watch, Famously Popularized by Jackie Onassis - The Keystone Watches

Cartier Yellow Gold Tank Normale Watch, Famously Popularized by Jackie Onassis

Cartier Yellow Gold Tank Normale Watch, Famously Popularized by Jackie Onassis

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Cartier - Cartier White Gold Tank Watch, Circa 1970s - The Keystone Watches

Cartier White Gold Tank Watch, Circa 1970s

Cartier White Gold Tank Watch, Circa 1970s

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Jaeger LeCoultre - Jaeger LeCoultre Rose Gold Grand Reverso Ultra Thin 1931 Watch - The Keystone Watches

Jaeger LeCoultre Rose Gold Grand Reverso Ultra Thin 1931 Watch

Jaeger LeCoultre Rose Gold Grand Reverso Ultra Thin 1931 Watch

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Cartier - Cartier Yellow Gold Tank Jumbo Automatic Watch - The Keystone Watches

Cartier Yellow Gold Tank Jumbo Automatic Watch

Cartier Yellow Gold Tank Jumbo Automatic Watch

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H. Moser & Cie - H. Moser & Cie Endeavor Concept Tourbillon Watch - The Keystone Watches

H. Moser & Cie Endeavor Concept Tourbillon Watch

H. Moser & Cie Endeavor Concept Tourbillon Watch

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Cartier - Cartier Platinum Tank Cintree Medium Watch, 1920s - The Keystone Watches

Cartier Platinum Tank Cintree Medium Watch, 1920s

Cartier Platinum Tank Cintree Medium Watch, 1920s

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Cartier - Cartier Platinum Asymmetrical Tank Watch, Piece Unique - The Keystone Watches

Cartier Platinum Asymmetrical Tank Watch, Piece Unique

Cartier Platinum Asymmetrical Tank Watch, Piece Unique

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Bulova - Bulova Two-Tone Royal Oak Automatic Watch - The Keystone Watches

Bulova Two-Tone Royal Oak Automatic Watch

Bulova Two-Tone Royal Oak Automatic Watch

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Piaget - Piaget White Gold Mystery Diamond Watch - The Keystone Watches

Piaget White Gold Mystery Diamond Watch

Piaget White Gold Mystery Diamond Watch

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Piaget - Piaget White Gold Diamond & Onyx Automatic Watch - The Keystone Watches

Piaget White Gold Diamond & Onyx Automatic Watch

Piaget White Gold Diamond & Onyx Automatic Watch

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Cartier - Cartier Yellow Gold Tortue Watch, Circa 1970s - The Keystone Watches

Cartier Yellow Gold Tortue Watch, Circa 1970s

Cartier Yellow Gold Tortue Watch, Circa 1970s

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IWC - IWC Ingenieur Automatic Watch Ref. 666 - The Keystone Watches

IWC Ingenieur Automatic Watch Ref. 666

IWC Ingenieur Automatic Watch Ref. 666

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Cartier - Cartier White Gold Tortue Monopoussoir Chronograph Watch Ref. 2396 - The Keystone Watches

Cartier White Gold Tortue Monopoussoir Chronograph Watch Ref. 2396

Cartier White Gold Tortue Monopoussoir Chronograph Watch Ref. 2396

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A. Lange & Sohne - A. Lange & Sohne White Gold Dual TIme Watch, Ref. 386.026 - The Keystone Watches

A. Lange & Sohne White Gold Dual TIme Watch, Ref. 386.026

A. Lange & Sohne White Gold Dual TIme Watch, Ref. 386.026

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Piaget - Piaget Yellow Gold Opal Diamond Watch - The Keystone Watches

Piaget Yellow Gold Opal Diamond Watch

Piaget Yellow Gold Opal Diamond Watch

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Piaget - Piaget White Gold Dual Time Watch - The Keystone Watches

Piaget White Gold Dual Time Watch

Piaget White Gold Dual Time Watch

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Cartier - Cartier Yellow Gold Santos Watch in New Old Stock Condition - The Keystone Watches

Cartier Yellow Gold Santos Watch in New Old Stock Condition

Cartier Yellow Gold Santos Watch in New Old Stock Condition

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Breguet - Breguet Yellow Gold Classique Watch, Retailed by Chaumet Paris - The Keystone Watches

Breguet Yellow Gold Classique Watch, Retailed by Chaumet Paris

Breguet Yellow Gold Classique Watch, Retailed by Chaumet Paris

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Laurent Ferrier - Laurent Ferrier Steel Grand Sport Tourbillon Watch, Limited to 12 Pieces - The Keystone Watches

Laurent Ferrier Steel Grand Sport Tourbillon Watch, Limited to 12 Pieces

Laurent Ferrier Steel Grand Sport Tourbillon Watch, Limited to 12 Pieces

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Cartier - Cartier Yellow Gold Tank Louis Bracelet Watch with Original Box and Warranty - The Keystone Watches

Cartier Yellow Gold Tank Louis Bracelet Watch with Original Box and Warranty

Cartier Yellow Gold Tank Louis Bracelet Watch with Original Box and Warranty

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Corum - Corum White Gold Golden Bridge Napoleon Watch - The Keystone Watches

Corum White Gold Golden Bridge Napoleon Watch

Corum White Gold Golden Bridge Napoleon Watch

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Corum - Corum Rose Gold Golden Bridge Adam & Eve Watch - The Keystone Watches

Corum Rose Gold Golden Bridge Adam & Eve Watch

Corum Rose Gold Golden Bridge Adam & Eve Watch

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Ulysse Nardin - Ulysse Nardin Platinum San Marco Kremlin Cloisonne Dial Watch - The Keystone Watches

Ulysse Nardin Platinum San Marco Kremlin Cloisonne Dial Watch

Ulysse Nardin Platinum San Marco Kremlin Cloisonne Dial Watch

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Cartier - Cartier White Gold Tortue Monopoussoir Chronograph Watch Ref. 2396 with Original Box and Paper - The Keystone Watches

Cartier White Gold Tortue Monopoussoir Chronograph Watch Ref. 2396 with Original Box and Paper

Cartier White Gold Tortue Monopoussoir Chronograph Watch Ref. 2396 with Original Box and Paper

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Roger Dubuis - Roger Dubuis White Gold Hommage Perpetual Calendar Watch - The Keystone Watches

Roger Dubuis White Gold Hommage Perpetual Calendar Watch

Roger Dubuis White Gold Hommage Perpetual Calendar Watch

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New Arrivals Preview
 
Gerald Genta Fantasy Retro M.10 MOP Mickey Mouse for Hong Kong Disney Watch (New Arrival)

Gerald Genta Fantasy Retro M.10 MOP Mickey Mouse for Hong Kong Disney Watch (New Arrival)

Gerald Genta Fantasy Retro M.10 MOP Mickey Mouse for Hong Kong Disney Watch (New Arrival)

$23,750 USD
 
Vacheron Constantin - Vacheron Constantin Yellow Gold Grand Complication Pocket Watch (NEW ARRIVAL) - The Keystone Watches

Vacheron Constantin Yellow Gold Grand Complication Pocket Watch (NEW ARRIVAL)

Vacheron Constantin Yellow Gold Grand Complication Pocket Watch (NEW ARRIVAL)

$155,000 USD
 
Cartier Yellow Gold Tank Obus Ref. 1630 with Black Enamel (New Arrival)

Cartier Yellow Gold Tank Obus Ref. 1630 with Black Enamel (New Arrival)

Cartier Yellow Gold Tank Obus Ref. 1630 with Black Enamel (New Arrival)

$14,500 USD
 
Patek Philippe Steel Automatic UFO Ref. 3580 (New Arrival)

Patek Philippe Steel Automatic UFO Ref. 3580 (New Arrival)

Patek Philippe Steel Automatic UFO Ref. 3580 (New Arrival)

$13,250 USD
 
Patek Philiipe Rose Gold Calatrava Watch Ref. 3796 (New Arrival)

Patek Philiipe Rose Gold Calatrava Watch Ref. 3796 (New Arrival)

Patek Philiipe Rose Gold Calatrava Watch Ref. 3796 (New Arrival)

$16,500 USD
 

Piaget White Gold Altiplano Ref. 90122 with Diamonds and Sapphires (New Arrival)

Piaget White Gold Altiplano Ref. 90122 with Diamonds and Sapphires (New Arrival)

$17,750 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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