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Audemars Piguet - Audemars Piguet Royal Oak Brown Dial Watch, Ref. 56175 - The Keystone Watches

Audemars Piguet Royal Oak Brown Dial Watch, Ref. 56175

Audemars Piguet Royal Oak Brown Dial Watch, Ref. 56175

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Audemars Piguet - Audemars Piguet Yellow Gold Royal Oak Automatic Watch - The Keystone Watches

Audemars Piguet Yellow Gold Royal Oak Automatic Watch

Audemars Piguet Yellow Gold Royal Oak Automatic Watch

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Audemars Piguet - Audemars Piguet Yellow Gold Skeleton Watch - The Keystone Watches

Audemars Piguet Yellow Gold Skeleton Watch

Audemars Piguet Yellow Gold Skeleton Watch

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Patek Philippe - Patek Philippe White Gold Nautilus Diamond Emerald Watch Ref. 3800 - The Keystone Watches

Patek Philippe White Gold Nautilus Diamond Emerald Watch Ref. 3800

Patek Philippe White Gold Nautilus Diamond Emerald Watch Ref. 3800

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Cartier - Cartier White Gold Baignoire Red Numbers Watch - The Keystone Watches

Cartier White Gold Baignoire Red Numbers Watch

Cartier White Gold Baignoire Red Numbers Watch

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IWC - IWC Platinum Calibre 853 Mechanical Wind Watch - The Keystone Watches

IWC Platinum Calibre 853 Mechanical Wind Watch

IWC Platinum Calibre 853 Mechanical Wind Watch

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Vacheron Constantin - Vacheron Constantin Yellow Gold Mechanical Wind Watch, 1950s - The Keystone Watches

Vacheron Constantin Yellow Gold Mechanical Wind Watch, 1950s

Vacheron Constantin Yellow Gold Mechanical Wind Watch, 1950s

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Cartier - Cartier Rose Gold Tank Americaine Watch with Original Box and Papers - The Keystone Watches

Cartier Rose Gold Tank Americaine Watch with Original Box and Papers

Cartier Rose Gold Tank Americaine Watch with Original Box and Papers

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Jaeger LeCoultre - Jaeger LeCoultre Grande Reverso Ultra-Thin Tribute to 1931 Watch, with Original Box and Papers - The Keystone Watches

Jaeger LeCoultre Grande Reverso Ultra-Thin Tribute to 1931 Watch, with Original Box and Papers

Jaeger LeCoultre Grande Reverso Ultra-Thin Tribute to 1931 Watch, with Original Box and Papers

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FP Journe - F.P Journe Platinum Octa Automatique Diamond Watch - The Keystone Watches

F.P Journe Platinum Octa Automatique Diamond Watch

F.P Journe Platinum Octa Automatique Diamond Watch

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Cartier - Cartier Yellow Gold Carree Obus Skeleton Watch, Limited to 100 - The Keystone Watches

Cartier Yellow Gold Carree Obus Skeleton Watch, Limited to 100

Cartier Yellow Gold Carree Obus Skeleton Watch, Limited to 100

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Rolex - Rolex Yellow Gold Cosmograph Floating Daytona Watch Ref. 16528 - The Keystone Watches

Rolex Yellow Gold Cosmograph Floating Daytona Watch Ref. 16528

Rolex Yellow Gold Cosmograph Floating Daytona Watch Ref. 16528

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Patek Philippe - Patek Philippe White Gold Nautilus Diamond Watch Ref. 5719 - The Keystone Watches

Patek Philippe White Gold Nautilus Diamond Watch Ref. 5719

Patek Philippe White Gold Nautilus Diamond Watch Ref. 5719

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Patek Philippe - Patek Philippe White Gold World Time Ref. 5130, with Original Box and Papers - The Keystone Watches

Patek Philippe White Gold World Time Ref. 5130, with Original Box and Papers

Patek Philippe White Gold World Time Ref. 5130, with Original Box and Papers

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Patek Philippe - Patek Philippe Platinum Minute Repeater Watch Ref. 5033 - The Keystone Watches

Patek Philippe Platinum Minute Repeater Watch Ref. 5033

Patek Philippe Platinum Minute Repeater Watch Ref. 5033

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Patek Philippe - Patek Philippe White Gold Calatrava Watch, Ref. 3520 Retailed by Tiffany & Co. - The Keystone Watches

Patek Philippe White Gold Calatrava Watch, Ref. 3520 Retailed by Tiffany & Co.

Patek Philippe White Gold Calatrava Watch, Ref. 3520 Retailed by Tiffany & Co.

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Rolex - Rolex Datejust Black Gilt Watch Ref. 1601 - The Keystone Watches

Rolex Datejust Black Gilt Watch Ref. 1601

Rolex Datejust Black Gilt Watch Ref. 1601

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Patek Philippe - Patek Philippe Rose Gold Chronograph Watch Ref. 5070, Completely Unworn - The Keystone Watches

Patek Philippe Rose Gold Chronograph Watch Ref. 5070, Completely Unworn

Patek Philippe Rose Gold Chronograph Watch Ref. 5070, Completely Unworn

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Patek Philippe - Patek Philippe White Gold World Time Cloisonne Watch Ref. 5131 - The Keystone Watches

Patek Philippe White Gold World Time Cloisonne Watch Ref. 5131

Patek Philippe White Gold World Time Cloisonne Watch Ref. 5131

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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

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Vacheron Constantin - Vacheron Constantin Yellow Gold Jumbo 222 Diamond Watch Ref. 44518 - The Keystone Watches

Vacheron Constantin Yellow Gold Jumbo 222 Diamond Watch Ref. 44518

Vacheron Constantin Yellow Gold Jumbo 222 Diamond Watch Ref. 44518

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Patek Philippe - Patek Philippe Rose Gold 10-Day Tourbillon Watch, Ref. 5101 - The Keystone Watches

Patek Philippe Rose Gold 10-Day Tourbillon Watch, Ref. 5101

Patek Philippe Rose Gold 10-Day Tourbillon Watch, Ref. 5101

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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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