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Piaget White Gold Onyx and Diamond Watch Ref. 93419

Piaget White Gold Onyx and Diamond Watch Ref. 93419

$15,500 USD
 

Cartier Yellow Gold Mini Obus with Enamel

Cartier Yellow Gold Mini Obus with Enamel

Sold Out

 

Cartier Two Tone Vintage Santos Ref. 2961

Cartier Two Tone Vintage Santos Ref. 2961

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Cartier Platinum Tank Asymmetric Ref. WGTA0042

Cartier Platinum Tank Asymmetric Ref. WGTA0042

Sold Out

 

Patek Philippe Yellow Gold Nautilus Ref. 3800 with Blue Diamond Dial

Patek Philippe Yellow Gold Nautilus Ref. 3800 with Blue Diamond Dial

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Cartier Yellow Gold London Travel Clock in Original Box, 1960 (Objet)

Cartier Yellow Gold London Travel Clock in Original Box, 1960 (Objet)

Cartier Yellow Gold London Travel Clock in Original Box, 1960 (Objet)

$29,500 USD
 
Patek Philippe - Patek Philippe Yellow Gold Calatrava Ref. 5022 - The Keystone Watches

Patek Philippe Yellow Gold Calatrava Ref. 5022

Patek Philippe Yellow Gold Calatrava Ref. 5022

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Patek Philippe Yellow Gold Golden Ellipse Ref. 3855

Patek Philippe Yellow Gold Golden Ellipse Ref. 3855

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Patek Philippe Rose Gold Perpetual Calendar Ref. 5940 (New Arrival)

Patek Philippe Rose Gold Perpetual Calendar Ref. 5940 (New Arrival)

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Patek Philippe Yellow Gold Calatrava Ref. 570 (New Arrival)

Patek Philippe Yellow Gold Calatrava Ref. 570 (New Arrival)

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Omega Yellow Gold Constellation Ref. 168.009

Omega Yellow Gold Constellation Ref. 168.009

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Cartier White Gold Large Model Tank Francaise Ref. WE100351

Cartier White Gold Large Model Tank Francaise Ref. WE100351

Cartier White Gold Large Model Tank Francaise Ref. WE100351

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Audemars Piguet Platinum Extra-Plat Ref. 14667 in Top Condition with Original Warranty (New Arrival)

Audemars Piguet Platinum Extra-Plat Ref. 14667 in Top Condition with Original Warranty (New Arrival)

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Rolex - Rolex Steel Submariner Ref. 5513 with Original Paper - The Keystone Watches

Rolex Steel Submariner Ref. 5513 with Original Paper

Rolex Steel Submariner Ref. 5513 with Original Paper

Sold Out

 

Patek Philippe Yellow Gold Nautilus Ref. 3800 (New Arrival)

Patek Philippe Yellow Gold Nautilus Ref. 3800 (New Arrival)

Sold Out

 

Patek Philippe Yellow Gold Ellipse Ref. 3987 (New Arrival)

Patek Philippe Yellow Gold Ellipse Ref. 3987 (New Arrival)

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Rolex Steel Datejust Ref. 1601 in Outstanding Condition (New Arrival)

Rolex Steel Datejust Ref. 1601 in Outstanding Condition (New Arrival)

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Vacheron Constantin - Vacheron Constantin Yellow Gold Rectangular Watch - The Keystone Watches

Vacheron Constantin Yellow Gold Rectangular Watch

Vacheron Constantin Yellow Gold Rectangular Watch

Sold Out

 

Cartier Yellow Gold Mechanical Paris Vendome

Cartier Yellow Gold Mechanical Paris Vendome

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Cartier White Gold Pasha de Classique Ref. 2372

Cartier White Gold Pasha de Classique Ref. 2372

Sold Out

 

Rolex Steel Sea Dweller SD4K Ref. 116600

Rolex Steel Sea Dweller SD4K Ref. 116600

Sold Out

 
Cartier - Cartier Yellow Gold Tank Louis, Circa 1966 - The Keystone Watches

Cartier Yellow Gold Tank Louis, Circa 1966

Cartier Yellow Gold Tank Louis, Circa 1966

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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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