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Patek Philippe Tropical Dial Nautilus Ref. 3700 with Original Box and Papers

Patek Philippe Tropical Dial Nautilus Ref. 3700 with Original Box and Papers

Patek Philippe Tropical Dial Nautilus Ref. 3700 with Original Box and Papers

$145,000 USD
 
Audemars Piguet Yellow Gold Cobra Watch Ref. 5403 with Khanjar Emblem Dial

Audemars Piguet Yellow Gold Cobra Watch Ref. 5403 with Khanjar Emblem Dial

Audemars Piguet Yellow Gold Cobra Watch Ref. 5403 with Khanjar Emblem Dial

$65,000 USD
 
Rolex Paul Newman Daytona Ref. 6239

Rolex Paul Newman Daytona Ref. 6239

Rolex Paul Newman Daytona Ref. 6239

Sold Out

 
Cartier Yellow Gold London Cintree Large, 1972

Cartier Yellow Gold London Cintree Large, 1972

Cartier Yellow Gold London Cintree Large, 1972

"Price upon request"
 

Audemars Piguet White Gold Automatic Bracelet Watch with Lapis Lazuli Dial

Audemars Piguet White Gold Automatic Bracelet Watch with Lapis Lazuli Dial

$30,000 USD
 
Cartier Yellow Gold Crash, 1991 Paris Edition

Cartier Yellow Gold Crash, 1991 Paris Edition

Cartier Yellow Gold Crash, 1991 Paris Edition

$345,000 USD
 
Audemars Piguet White Gold Diamond & Sapphire Watch Ref. 14781 with Original Warranty

Audemars Piguet White Gold Diamond & Sapphire Watch Ref. 14781 with Original Warranty

Audemars Piguet White Gold Diamond & Sapphire Watch Ref. 14781 with Original Warranty

$58,000 USD
 
Patek Philippe Rose Gold Calatrava Ref. 565 Retailed by Hausmann & Co. with Original Certificate from 1953

Patek Philippe Rose Gold Calatrava Ref. 565 Retailed by Hausmann & Co. with Original Certificate from 1953

Patek Philippe Rose Gold Calatrava Ref. 565 Retailed by Hausmann & Co. with Original Certificate from 1953

$105,000 USD
 
Patek Philippe White Gold Perpetual Calendar Ref. 3448

Patek Philippe White Gold Perpetual Calendar Ref. 3448

Patek Philippe White Gold Perpetual Calendar Ref. 3448

"Price upon request"
 
Cartier White Gold Baignoire Allongee with Diamond and Sapphire Pave Dial Ref. 2514

Cartier White Gold Baignoire Allongee with Diamond and Sapphire Pave Dial Ref. 2514

Cartier White Gold Baignoire Allongee with Diamond and Sapphire Pave Dial Ref. 2514

$65,000 USD
 
Audemars Piguet White Gold Royal Oak Ref. 56343 with Diamonds, Sapphires and Baguette Diamond

Audemars Piguet White Gold Royal Oak Ref. 56343 with Diamonds, Sapphires and Baguette Diamond

Audemars Piguet White Gold Royal Oak Ref. 56343 with Diamonds, Sapphires and Baguette Diamond

$90,000 USD
 
Patek Philippe Yellow Gold Tasti Tondi Chronograph Watch Ref. 1463 on Gay Freres Bracelet

Patek Philippe Yellow Gold Tasti Tondi Chronograph Watch Ref. 1463 on Gay Freres Bracelet

Patek Philippe Yellow Gold Tasti Tondi Chronograph Watch Ref. 1463 on Gay Freres Bracelet

$185,000 USD
 

Audemars Piguet White Gold Cobra Aventurine Dial Watch Ref. 5403

Audemars Piguet White Gold Cobra Aventurine Dial Watch Ref. 5403

$75,000 USD
 
Patek Philippe Platinum Calatrava Watch Ref. 570 with Archive

Patek Philippe Platinum Calatrava Watch Ref. 570 with Archive

Patek Philippe Platinum Calatrava Watch Ref. 570 with Archive

$165,000 USD
 

IWC Yellow Gold Turquoise & Diamond Watch

IWC Yellow Gold Turquoise & Diamond Watch

$65,000 USD
 

Patek Philippe Onyx, Malachite & Diamond Watch Ref. 4282

Patek Philippe Onyx, Malachite & Diamond Watch Ref. 4282

$60,000 USD
 

Patek Philippe Yellow Gold Golden Circle Ref. 3544 Retailed by Cartier

Patek Philippe Yellow Gold Golden Circle Ref. 3544 Retailed by Cartier

$30,000 USD
 
Patek Philippe Yellow Gold Perpetual Calendar Ref. 3448 on a Bracelet

Patek Philippe Yellow Gold Perpetual Calendar Ref. 3448 on a Bracelet

Patek Philippe Yellow Gold Perpetual Calendar Ref. 3448 on a Bracelet

$450,000 USD
 
Patek Philippe Yellow Gold Chronograph Tasti Tondi Watch Ref. 1463, Retailed by Tiffany & Co.

Patek Philippe Yellow Gold Chronograph Tasti Tondi Watch Ref. 1463, Retailed by Tiffany & Co.

Patek Philippe Yellow Gold Chronograph Tasti Tondi Watch Ref. 1463, Retailed by Tiffany & Co.

$295,000 USD
 
Rolex Platinum and Diamond Cover Watch

Rolex Platinum and Diamond Cover Watch

Rolex Platinum and Diamond Cover Watch

$65,000 USD
 
Cartier Platinum Salmon Dial Watch Ref. 1611

Cartier Platinum Salmon Dial Watch Ref. 1611

Cartier Platinum Salmon Dial Watch Ref. 1611

$35,000 USD
 
Audemars Piguet White Gold Watch with Baguette Diamonds and Onyx Dial

Audemars Piguet White Gold Watch with Baguette Diamonds and Onyx Dial

Audemars Piguet White Gold Watch with Baguette Diamonds and Onyx Dial

$55,000 USD
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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.

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