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Patek Philippe - Patek Philippe Yellow Gold Nautilus Diamond Watch with Original Box and Papers - The Keystone Watches

Patek Philippe Yellow Gold Nautilus Diamond Watch with Original Box and Papers

Patek Philippe Yellow Gold Nautilus Diamond Watch with Original Box and Papers

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

Audemars Piguet Yellow Gold Royal Oak Diamond Watch

Audemars Piguet Yellow Gold Royal Oak Diamond Watch

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Cartier White Gold Tank Louis Skeleton Watch Ref. W5310012

Cartier White Gold Tank Louis Skeleton Watch Ref. W5310012

Cartier White Gold Tank Louis Skeleton Watch Ref. W5310012

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Patek Philippe - Patek Philippe White Gold Lapis Bracelet Watch Ref. 3578, with Original Hang Tag - The Keystone Watches

Patek Philippe White Gold Lapis Bracelet Watch Ref. 3578, with Original Hang Tag

Patek Philippe White Gold Lapis Bracelet Watch Ref. 3578, with Original Hang Tag

Sold Out

 
Rolex - Rolex Platinum Cosmograph Daytona Watch Ref. 116576 - The Keystone Watches

Rolex Platinum Cosmograph Daytona Watch Ref. 116576

Rolex Platinum Cosmograph Daytona Watch Ref. 116576

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Rolex - Rolex White Gold Day-Date Mother of Pearl Diamond Watch Ref. 118209 - The Keystone Watches

Rolex White Gold Day-Date Mother of Pearl Diamond Watch Ref. 118209

Rolex White Gold Day-Date Mother of Pearl Diamond Watch Ref. 118209

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Audemars Piguet - Audemars Piguet Steel Royal Oak Watch Ref. 14790 - The Keystone Watches

Audemars Piguet Steel Royal Oak Watch Ref. 14790

Audemars Piguet Steel Royal Oak Watch Ref. 14790

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Rolex - Rolex GMT-Master Pepsi Watch Ref. 16700 - The Keystone Watches

Rolex GMT-Master Pepsi Watch Ref. 16700

Rolex GMT-Master Pepsi Watch Ref. 16700

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Cartier - Cartier Yellow Gold Jumbo TV Shaped Watch - The Keystone Watches

Cartier Yellow Gold Jumbo TV Shaped Watch

Cartier Yellow Gold Jumbo TV Shaped Watch

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Vacheron Constantin - Vacheron Constantin White Gold Strap Watch - The Keystone Watches

Vacheron Constantin White Gold Strap Watch

Vacheron Constantin White Gold Strap Watch

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Cartier - Cartier White Gold Asymmetrical Diamond Watch with Original Box and Paper - The Keystone Watches

Cartier White Gold Asymmetrical Diamond Watch with Original Box and Paper

Cartier White Gold Asymmetrical Diamond Watch with Original Box and Paper

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Patek Philippe - Patek Philippe White Gold Tonneau Watch from 1927 - The Keystone Watches

Patek Philippe White Gold Tonneau Watch from 1927

Patek Philippe White Gold Tonneau Watch from 1927

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

Patek Philippe Rose Gold Cloisonne World Time Ref. 5131

Patek Philippe Rose Gold Cloisonne World Time Ref. 5131

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Rolex - Rolex Precision Strap Watch, Circa 1976 - The Keystone Watches

Rolex Precision Strap Watch, Circa 1976

Rolex Precision Strap Watch, Circa 1976

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Audemars Piguet - Audemars Piguet Yellow Gold Ultra-Thin Strap Watch - The Keystone Watches

Audemars Piguet Yellow Gold Ultra-Thin Strap Watch

Audemars Piguet Yellow Gold Ultra-Thin Strap Watch

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Audemars Piguet - Audemars Piguet White Gold Diamond Watch - The Keystone Watches

Audemars Piguet White Gold Diamond Watch

Audemars Piguet White Gold Diamond Watch

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Patek Philippe - Patek Philippe White Gold Ellipse Watch Ref. 3648, Retailed by Somazzi - The Keystone Watches

Patek Philippe White Gold Ellipse Watch Ref. 3648, Retailed by Somazzi

Patek Philippe White Gold Ellipse Watch Ref. 3648, Retailed by Somazzi

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Patek Philippe - Patek Philippe White Gold Unsual Strap Watch Ref. 4183 - The Keystone Watches

Patek Philippe White Gold Unsual Strap Watch Ref. 4183

Patek Philippe White Gold Unsual Strap Watch Ref. 4183

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Cartier - Cartier Platinum Jumbo Tank Americaine Mechanique Watch - The Keystone Watches

Cartier Platinum Jumbo Tank Americaine Mechanique Watch

Cartier Platinum Jumbo Tank Americaine Mechanique Watch

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Audemars Piguet - Audemars Piguet Yellow Gold Ultra-Thin Strap Watch, Retailed by Turler - The Keystone Watches

Audemars Piguet Yellow Gold Ultra-Thin Strap Watch, Retailed by Turler

Audemars Piguet Yellow Gold Ultra-Thin Strap Watch, Retailed by Turler

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Rolex - Rolex Yellow Gold Day-Date Masterpiece Green Watch Ref. 18948 - The Keystone Watches

Rolex Yellow Gold Day-Date Masterpiece Green Watch Ref. 18948

Rolex Yellow Gold Day-Date Masterpiece Green Watch Ref. 18948

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Patek Philippe - Patek Philippe Yellow Gold Lapis Bracelet Watch Ref. 3578 - The Keystone Watches

Patek Philippe Yellow Gold Lapis Bracelet Watch Ref. 3578

Patek Philippe Yellow Gold Lapis Bracelet Watch Ref. 3578

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New Arrivals Preview
 
Cartier Platinum Tank A Guichet Ref. WGTA0236, 2025 Edition (New Arrival)

Cartier Platinum Tank A Guichet Ref. WGTA0236, 2025 Edition (New Arrival)

Cartier Platinum Tank A Guichet Ref. WGTA0236, 2025 Edition (New Arrival)

$150,000 USD
 
Patek Philippe White Gold Calatrava Watch Ref. 4189 (New Arrival)

Patek Philippe White Gold Calatrava Watch Ref. 4189 (New Arrival)

Patek Philippe White Gold Calatrava Watch Ref. 4189 (New Arrival)

$9,800 USD
 
Rolex Yellow Gold Day-Date Watch Ref. 1803 with Claw Dial (New Arrival)

Rolex Yellow Gold Day-Date Watch Ref. 1803 with Claw Dial (New Arrival)

Rolex Yellow Gold Day-Date Watch Ref. 1803 with Claw Dial (New Arrival)

$18,750 USD
 
Boucheron - Boucheron Yellow Gold Invisible Set Sapphire Watch (New Arrival) - The Keystone Watches

Boucheron Yellow Gold Invisible Set Sapphire Watch (New Arrival)

Boucheron Yellow Gold Invisible Set Sapphire Watch (New Arrival)

$9,500 USD
 
Rolex - Rolex Yellow Gold Cellini Watch Ref. 4014/8 with Orange Dial (New Arrival) - The Keystone Watches

Rolex Yellow Gold Cellini Watch Ref. 4014/8 with Orange Dial (New Arrival)

Rolex Yellow Gold Cellini Watch Ref. 4014/8 with Orange Dial (New Arrival)

$7,500 USD
 
Rolex Steel Submariner Ref. 5513 with Pumkin Lume (New Arrival)

Rolex Steel Submariner Ref. 5513 with Pumkin Lume (New Arrival)

Rolex Steel Submariner Ref. 5513 with Pumkin Lume (New Arrival)

$15,500 USD
 
Patek Philiipe White Gold Calatrava Watch Ref. 3919 (New Arrival)

Patek Philiipe White Gold Calatrava Watch Ref. 3919 (New Arrival)

Patek Philiipe White Gold Calatrava Watch Ref. 3919 (New Arrival)

$15,000 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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