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Patek Philippe - Patek Philippe Yellow Gold Mini Calatrava Ref. 3276 - The Keystone Watches

Patek Philippe Yellow Gold Mini Calatrava Ref. 3276

Patek Philippe Yellow Gold Mini Calatrava Ref. 3276

Sold Out

 
Patek Philippe - Patek Philippe Platinum Perpetual Calendar Watch Ref. 5040 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Watch Ref. 5040

Patek Philippe Platinum Perpetual Calendar Watch Ref. 5040

$55,000 USD
 
Piaget - Piaget White Gold Bracelet Watch Ref. 9431A6 - The Keystone Watches

Piaget White Gold Bracelet Watch Ref. 9431A6

Piaget White Gold Bracelet Watch Ref. 9431A6

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Piaget - Piaget White Gold and Diamond Watch Ref. 8056 with Opal and Onyx Dial - The Keystone Watches

Piaget White Gold and Diamond Watch Ref. 8056 with Opal and Onyx Dial

Piaget White Gold and Diamond Watch Ref. 8056 with Opal and Onyx Dial

$18,000 USD
 
Audemars Piguet Yellow Gold Watch

Audemars Piguet Yellow Gold Watch

Audemars Piguet Yellow Gold Watch

Sold Out

 

Rolex Steel Datejust Ref. 1601 in NOS with Punched Paper (New Arrival)

Rolex Steel Datejust Ref. 1601 in NOS with Punched Paper (New Arrival)

Sold Out

 
Audemars Piguet - Audemars Piguet Two-Tone Royal Oak Ref. 56303 - The Keystone Watches

Audemars Piguet Two-Tone Royal Oak Ref. 56303

Audemars Piguet Two-Tone Royal Oak Ref. 56303

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Audemars Piguet - Audemars Piguet White Gold Royal Oak Watch Ref. 14813 with Mother of Pearl Dial - The Keystone Watches

Audemars Piguet White Gold Royal Oak Watch Ref. 14813 with Mother of Pearl Dial

Audemars Piguet White Gold Royal Oak Watch Ref. 14813 with Mother of Pearl Dial

Sold Out

 
Audemars Piguet - Audemars Piguet Rose Gold and Tantalum Royal Oak Ref. 56175 - The Keystone Watches

Audemars Piguet Rose Gold and Tantalum Royal Oak Ref. 56175

Audemars Piguet Rose Gold and Tantalum Royal Oak Ref. 56175

Sold Out

 
Piaget - Piaget Yellow Gold Diamond Watch Ref. 9814 - The Keystone Watches

Piaget Yellow Gold Diamond Watch Ref. 9814

Piaget Yellow Gold Diamond Watch Ref. 9814

Sold Out

 
Audemars Piguet - Audemars Piguet Two-Tone Royal Oak Ref. 56303 - The Keystone Watches

Audemars Piguet Two-Tone Royal Oak Ref. 56303

Audemars Piguet Two-Tone Royal Oak Ref. 56303

Sold Out

 
Piaget White Gold Watch Ref. 9806 with Onyx & Mother of Pearl

Piaget White Gold Watch Ref. 9806 with Onyx & Mother of Pearl

Piaget White Gold Watch Ref. 9806 with Onyx & Mother of Pearl

Sold Out

 
Chopard Yellow Gold Ref. 410430 with Onyx and Diamond Bezel

Chopard Yellow Gold Ref. 410430 with Onyx and Diamond Bezel

Chopard Yellow Gold Ref. 410430 with Onyx and Diamond Bezel

Sold Out

 
Omega Yellow Gold DeVille Watch Ref. 7257 with Turquoise Dial

Omega Yellow Gold DeVille Watch Ref. 7257 with Turquoise Dial

Omega Yellow Gold DeVille Watch Ref. 7257 with Turquoise Dial

Sold Out

 
Jean Ete Yellow Gold Watch with Lapis and Nephrite Jade

Jean Ete Yellow Gold Watch with Lapis and Nephrite Jade

Jean Ete Yellow Gold Watch with Lapis and Nephrite Jade

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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

Sold Out

 
Piaget - Piaget Square Polo Ref. 7131 - The Keystone Watches

Piaget Square Polo Ref. 7131

Piaget Square Polo Ref. 7131

Sold Out

 

Cartier White Gold Panther Mini Ref. WF3244F3

Cartier White Gold Panther Mini Ref. WF3244F3

Sold Out

 
Audemars Piguet - Audemars Piguet White Gold Vintage Watch with Original Diamonds - The Keystone Watches

Audemars Piguet White Gold Vintage Watch with Original Diamonds

Audemars Piguet White Gold Vintage Watch with Original Diamonds

Sold Out

 

Rolex Steel Submariner Ref. 5513

Rolex Steel Submariner Ref. 5513

Sold Out

 
Patek Philippe - Patek Philippe White Gold Vintage Square Watch Ref. 4222 - The Keystone Watches

Patek Philippe White Gold Vintage Square Watch Ref. 4222

Patek Philippe White Gold Vintage Square Watch Ref. 4222

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Piaget - Piaget Yellow Gold Emperador Ref. 9131 - The Keystone Watches

Piaget Yellow Gold Emperador Ref. 9131

Piaget Yellow Gold Emperador Ref. 9131

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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.

Stay in touch.

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