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Piaget White Gold Emperador Ref. 9131 with Diamonds and Sapphires

Piaget White Gold Emperador Ref. 9131 with Diamonds and Sapphires

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Audemars Piguet - Audemars Piguet Yellow Gold Moonphase Watch on Bracelet - The Keystone Watches

Audemars Piguet Yellow Gold Moonphase Watch on Bracelet

Audemars Piguet Yellow Gold Moonphase Watch on Bracelet

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Audemars Piguet - Audemars Piguet White Gold Royal Oak Ref. 56175 - The Keystone Watches

Audemars Piguet White Gold Royal Oak Ref. 56175

Audemars Piguet White Gold Royal Oak Ref. 56175

$29,000 USD
 
Rolex - Rolex Yellow Gold Daytona Ref. 6265 with Two Dials and Extensive Service Records - The Keystone Watches

Rolex Yellow Gold Daytona Ref. 6265 with Two Dials and Extensive Service Records

Rolex Yellow Gold Daytona Ref. 6265 with Two Dials and Extensive Service Records

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Patek Philippe - Patek Philippe White Gold Ellipse Ref. 4716 with Factory Diamonds Bracelet - The Keystone Watches

Patek Philippe White Gold Ellipse Ref. 4716 with Factory Diamonds Bracelet

Patek Philippe White Gold Ellipse Ref. 4716 with Factory Diamonds Bracelet

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Piaget White Gold Lapis Watch Diamond Ref. 9706

Piaget White Gold Lapis Watch Diamond Ref. 9706

Piaget White Gold Lapis Watch Diamond Ref. 9706

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Vacheron Constantin - Vacheron Constantin White Gold Bracelet Watch 160mm bracelet 86.5g - The Keystone Watches

Vacheron Constantin White Gold Bracelet Watch 160mm bracelet 86.5g

Vacheron Constantin White Gold Bracelet Watch 160mm bracelet 86.5g

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Cartier - Cartier White Gold Tank Americaine Tourbillon Watch Ref. 3199 - The Keystone Watches

Cartier White Gold Tank Americaine Tourbillon Watch Ref. 3199

Cartier White Gold Tank Americaine Tourbillon Watch Ref. 3199

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Minute Repeater Watch Ref. 5374 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Minute Repeater Watch Ref. 5374

Patek Philippe Platinum Perpetual Calendar Minute Repeater Watch Ref. 5374

$875,000 USD
 
Patek Philippe - Patek Philippe Platinum Grand Complications Minute Repeater Watch Ref. 5207 - The Keystone Watches

Patek Philippe Platinum Grand Complications Minute Repeater Watch Ref. 5207

Patek Philippe Platinum Grand Complications Minute Repeater Watch Ref. 5207

"Price upon request"
 

Patek Philippe Steel Neptune Watch Ref. 5080 with Salmon Dial

Patek Philippe Steel Neptune Watch Ref. 5080 with Salmon Dial

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Rolex Yellow Gold Submariner Ref. 16618

Rolex Yellow Gold Submariner Ref. 16618

Rolex Yellow Gold Submariner Ref. 16618

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Audemars Piguet - Audemars Piguet White Gold Vintage Bracelet Watch - The Keystone Watches

Audemars Piguet White Gold Vintage Bracelet Watch

Audemars Piguet White Gold Vintage Bracelet Watch

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Cartier - Cartier Yellow Gold Gouvernail Helm Watch, European Watch & Clock Circa 1954 - The Keystone Watches

Cartier Yellow Gold Gouvernail Helm Watch, European Watch & Clock Circa 1954

Cartier Yellow Gold Gouvernail Helm Watch, European Watch & Clock Circa 1954

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Jaeger LeCoultre - Jaeger LeCoultre Yellow Gold Chronograph Valjoux 72 - The Keystone Watches

Jaeger LeCoultre Yellow Gold Chronograph Valjoux 72

Jaeger LeCoultre Yellow Gold Chronograph Valjoux 72

$18,500 USD
 

Rolex Yellow Gold GMT Master II Ref. 126718

Rolex Yellow Gold GMT Master II Ref. 126718

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F.P. Journe Repetition Souverain Minute Repeater Watch

F.P. Journe Repetition Souverain Minute Repeater Watch

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Cartier - Cartier Two-Tone Panthere Ref. W25028B6 - The Keystone Watches

Cartier Two-Tone Panthere Ref. W25028B6

Cartier Two-Tone Panthere Ref. W25028B6

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Patek Philippe - Patek Philippe Steel Tonneau Watch Ref. 3574 - The Keystone Watches

Patek Philippe Steel Tonneau Watch Ref. 3574

Patek Philippe Steel Tonneau Watch Ref. 3574

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Rolex Steel Datejust Ref. 6305 with Honeycomb Dial

Rolex Steel Datejust Ref. 6305 with Honeycomb Dial

Rolex Steel Datejust Ref. 6305 with Honeycomb Dial

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Cartier - Cartier Rose Gold Ronde Louis Ref. WGRN011 - The Keystone Watches

Cartier Rose Gold Ronde Louis Ref. WGRN011

Cartier Rose Gold Ronde Louis Ref. WGRN011

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Patek Philippe Yellow Gold Gondolo Ref. 5014

Patek Philippe Yellow Gold Gondolo Ref. 5014

Sold Out

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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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