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Cartier Yellow Gold Tank Obus Ref. 1630 with Black Enamel

Cartier Yellow Gold Tank Obus Ref. 1630 with Black Enamel

Cartier Yellow Gold Tank Obus Ref. 1630 with Black Enamel

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Cartier Yellow Gold Extra Plate Tank Ref. 96065

Cartier Yellow Gold Extra Plate Tank Ref. 96065

Cartier Yellow Gold Extra Plate Tank Ref. 96065

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Cartier - Cartier Yellow Gold Ceinture Onyx & Diamond Watch - The Keystone Watches

Cartier Yellow Gold Ceinture Onyx & Diamond Watch

Cartier Yellow Gold Ceinture Onyx & Diamond Watch

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Cartier Yellow Gold Tank Obus Ref. 1630

Cartier Yellow Gold Tank Obus Ref. 1630

Cartier Yellow Gold Tank Obus Ref. 1630

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Cartier - Cartier White Gold Monopoussir Chronograph Watch Ref. 2396 (New Arrival) - The Keystone Watches

Cartier White Gold Monopoussir Chronograph Watch Ref. 2396 (New Arrival)

Cartier White Gold Monopoussir Chronograph Watch Ref. 2396 (New Arrival)

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Cartier - Cartier Yellow Gold Santos Dumont Ref. 96053 - The Keystone Watches

Cartier Yellow Gold Santos Dumont Ref. 96053

Cartier Yellow Gold Santos Dumont Ref. 96053

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Cartier - Cartier Yellow Gold Mini Tonneau Watch Ref. 2563 - The Keystone Watches

Cartier Yellow Gold Mini Tonneau Watch Ref. 2563

Cartier Yellow Gold Mini Tonneau Watch Ref. 2563

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Cartier - Cartier Platinum Tank Louis Ref. 1601 - The Keystone Watches

Cartier Platinum Tank Louis Ref. 1601

Cartier Platinum Tank Louis Ref. 1601

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Cartier - Cartier Platinum Santos Dumont Ref. 1575 - The Keystone Watches

Cartier Platinum Santos Dumont Ref. 1575

Cartier Platinum Santos Dumont Ref. 1575

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Cartier Vintage Platinum Tonneau Mecanique Watch

Cartier Vintage Platinum Tonneau Mecanique Watch

Cartier Vintage Platinum Tonneau Mecanique Watch

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Cartier - Cartier Two Tone Santos Ref. 2961 with Godron Bracelet - The Keystone Watches

Cartier Two Tone Santos Ref. 2961 with Godron Bracelet

Cartier Two Tone Santos Ref. 2961 with Godron Bracelet

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Cartier Yellow Gold Baignoire Bangle Watch Ref. WGBA0021

Cartier Yellow Gold Baignoire Bangle Watch Ref. WGBA0021

Cartier Yellow Gold Baignoire Bangle Watch Ref. WGBA0021

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Cartier - Cartier Yellow Gold Tank Normale Watch Ref. 78902 with Rare Dial - The Keystone Watches

Cartier Yellow Gold Tank Normale Watch Ref. 78902 with Rare Dial

Cartier Yellow Gold Tank Normale Watch Ref. 78902 with Rare Dial

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Cartier - Cartier Yellow Gold Mini Baignoire on Bracelet Ref. 2960 - The Keystone Watches

Cartier Yellow Gold Mini Baignoire on Bracelet Ref. 2960

Cartier Yellow Gold Mini Baignoire on Bracelet Ref. 2960

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Cartier White Gold Tortue Ref. WGTO0003 with Original Baguette Diamonds

Cartier White Gold Tortue Ref. WGTO0003 with Original Baguette Diamonds

Cartier White Gold Tortue Ref. WGTO0003 with Original Baguette Diamonds

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Cartier - Cartier Yellow Gold Vintage Ladies Tank - The Keystone Watches

Cartier Yellow Gold Vintage Ladies Tank

Cartier Yellow Gold Vintage Ladies Tank

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Cartier - Cartier Rose Gold Ballon Bleu Ref. W69002Z2 - The Keystone Watches

Cartier Rose Gold Ballon Bleu Ref. W69002Z2

Cartier Rose Gold Ballon Bleu Ref. W69002Z2

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Cartier Steel and Gold Santos Ref. 2961 with Original Paper

Cartier Steel and Gold Santos Ref. 2961 with Original Paper

Cartier Steel and Gold Santos Ref. 2961 with Original Paper

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Cartier Yellow Gold Diamond Cover Watch

Cartier Yellow Gold Diamond Cover Watch

Cartier Yellow Gold Diamond Cover Watch

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Cartier Yellow Gold Santos Dumont Ref. 96061

Cartier Yellow Gold Santos Dumont Ref. 96061

Cartier Yellow Gold Santos Dumont Ref. 96061

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Cartier White Gold Panther Mini Ref. WF3244F3

Cartier White Gold Panther Mini Ref. WF3244F3

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Cartier - Cartier Ladies White Gold Diamond Panthere Ref. WF3118FK - The Keystone Watches

Cartier Ladies White Gold Diamond Panthere Ref. WF3118FK

Cartier Ladies White Gold Diamond Panthere Ref. WF3118FK

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New Arrivals Preview
 
Rolex Steel Oyster Perpetual Ref. 6050 (New Arrival)

Rolex Steel Oyster Perpetual Ref. 6050 (New Arrival)

Rolex Steel Oyster Perpetual Ref. 6050 (New Arrival)

$8,500 USD
 
Audemard Piguet Octagon White Gold Bracelet Watch (New Arrival)

Audemard Piguet Octagon White Gold Bracelet Watch (New Arrival)

Audemard Piguet Octagon White Gold Bracelet Watch (New Arrival)

$20,000 USD
 
Patek Philippe Yellow Gold Calatrava Ref. 3919J (New Arrival)

Patek Philippe Yellow Gold Calatrava Ref. 3919J (New Arrival)

Patek Philippe Yellow Gold Calatrava Ref. 3919J (New Arrival)

$128,000 USD
 
Patek Philippe Pink Gold Watch Ref. 2488 (New Arrival)

Patek Philippe Pink Gold Watch Ref. 2488 (New Arrival)

Patek Philippe Pink Gold Watch Ref. 2488 (New Arrival)

$17,500 USD
 
Patek Philippe White Gold Bracelet Watch Ref. 3430 (New Arrival)

Patek Philippe White Gold Bracelet Watch Ref. 3430 (New Arrival)

Patek Philippe White Gold Bracelet Watch Ref. 3430 (New Arrival)

$15,000 USD
 
Patek Philippe Yellow Gold Cioccolatone Watch Ref. 2486 (New Arrival)

Patek Philippe Yellow Gold Cioccolatone Watch Ref. 2486 (New Arrival)

Patek Philippe Yellow Gold Cioccolatone Watch Ref. 2486 (New Arrival)

$19,500 USD
 
Vacheron Constantin White Gold Toledo Ref. 47300 (New Arrival)

Vacheron Constantin White Gold Toledo Ref. 47300 (New Arrival)

Vacheron Constantin White Gold Toledo Ref. 47300 (New Arrival)

$17,000 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.

Stay in touch.

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