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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 Paris White Gold Diamond Tank Watch, Movement by Vacheron Constantin

Cartier Paris White Gold Diamond Tank Watch, Movement by Vacheron Constantin

Cartier Paris White Gold Diamond Tank Watch, Movement by Vacheron Constantin

$37,500 USD
 
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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Cartier - Cartier Yellow Gold Tank Americaine Ref. W26001C9 - The Keystone Watches

Cartier Yellow Gold Tank Americaine Ref. W26001C9

Cartier Yellow Gold Tank Americaine Ref. W26001C9

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Cartier Steel Santos Dumont Black Enamel Ref. WSSA0046

Cartier Steel Santos Dumont Black Enamel Ref. WSSA0046

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Cartier - Cartier Rose Gold Baignoire Allongee Ref. WGBA0009 - The Keystone Watches

Cartier Rose Gold Baignoire Allongee Ref. WGBA0009

Cartier Rose Gold Baignoire Allongee Ref. WGBA0009

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Cartier - Cartier Yellow Gold Santos Dumont Ref. 821053 - The Keystone Watches

Cartier Yellow Gold Santos Dumont Ref. 821053

Cartier Yellow Gold Santos Dumont Ref. 821053

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Cartier Vendome 78090 18k YG Excellent Condition with Very Minor Wear Unisex 18k YG White with Roman Numerals 33 mm Manual Blue Watch Only

Cartier Yellow Gold Vendome Ref. 78090

Cartier Yellow Gold Vendome Ref. 78090

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Cartier - Cartier Yellow Gold Santos Carree Auto Ref. 2960 in Superb Condition (New Arrival) - The Keystone Watches

Cartier Yellow Gold Santos Carree Auto Ref. 2960 in Superb Condition (New Arrival)

Cartier Yellow Gold Santos Carree Auto Ref. 2960 in Superb Condition (New Arrival)

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New Arrivals Preview
 
Patek Philippe Pink Gold Concealed Gay Freres Watch (New Arrival)

Patek Philippe Pink Gold Concealed Gay Freres Watch (New Arrival)

Patek Philippe Pink Gold Concealed Gay Freres Watch (New Arrival)

$29,500 USD
 
Vacheron Constantin Yellow Gold Ref. 57003 Pocket Watch (New Arrival)

Vacheron Constantin Yellow Gold Ref. 57003 Pocket Watch (New Arrival)

Vacheron Constantin Yellow Gold Ref. 57003 Pocket Watch (New Arrival)

$9,500 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
 
Cartier Yellow Gold Santos Ref. 81736781 with Sapphire Bezel and Bracelet (New Arrival)

Cartier Yellow Gold Santos Ref. 81736781 with Sapphire Bezel and Bracelet (New Arrival)

Cartier Yellow Gold Santos Ref. 81736781 with Sapphire Bezel and Bracelet (New Arrival)

$55,000 USD
 
Patek Philippe - Patek Philippe White Gold Golden Ellipse Ref. 3546 (New Arrival) - The Keystone Watches

Patek Philippe White Gold Golden Ellipse Ref. 3546 (New Arrival)

Patek Philippe White Gold Golden Ellipse Ref. 3546 (New Arrival)

$15,500 USD
 
Uti Paris Yellow Gold Watch, Retailed by Spritzer & Furhmann (New Arrival)

Uti Paris Yellow Gold Watch, Retailed by Spritzer & Furhmann (New Arrival)

Uti Paris Yellow Gold Watch, Retailed by Spritzer & Furhmann (New Arrival)

$9,200 USD
 
Cartier - Cartier Yellow Gold Enamel Clip Watch with Royal Thames Yacht Club Enamel Emblem (New Arrival) - The Keystone Watches

Cartier Yellow Gold Enamel Clip Watch with Royal Thames Yacht Club Enamel Emblem (New Arrival)

Cartier Yellow Gold Enamel Clip Watch with Royal Thames Yacht Club Enamel Emblem (New Arrival)

$35,000 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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