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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

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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

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Cartier Yellow Gold London Cintree Large, 1972

Cartier Yellow Gold London Cintree Large, 1972

Cartier Yellow Gold London Cintree Large, 1972

"Price upon request"
 
Cartier Yellow Gold Crash, 1991 Paris Edition

Cartier Yellow Gold Crash, 1991 Paris Edition

Cartier Yellow Gold Crash, 1991 Paris Edition

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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

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Patek Philippe Yellow Gold Diamond & Turquoise Cover Watch Ref. 3006 with Archives

Patek Philippe Yellow Gold Diamond & Turquoise Cover Watch Ref. 3006 with Archives

Patek Philippe Yellow Gold Diamond & Turquoise Cover Watch Ref. 3006 with Archives

Sold Out

 
Patek Philippe Platinum Calatrava Watch Ref. 570 with Archive Paper

Patek Philippe Platinum Calatrava Watch Ref. 570 with Archive Paper

Patek Philippe Platinum Calatrava Watch Ref. 570 with Archive Paper

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IWC Yellow Gold Turquoise & Diamond Watch

IWC Yellow Gold Turquoise & Diamond Watch

IWC Yellow Gold Turquoise & Diamond Watch

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Patek Philippe Onyx, Malachite & Diamond Watch Ref. 4282

Patek Philippe Onyx, Malachite & Diamond Watch Ref. 4282

Patek Philippe Onyx, Malachite & Diamond Watch Ref. 4282

$60,000 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

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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.

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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

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Cartier Yellow Gold Tank Cintree Watch

Cartier Yellow Gold Tank Cintree Watch

Cartier Yellow Gold Tank Cintree Watch

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A. Lange & Sohne White Gold Saxonia Ref. 878.038 (New Arrival)

A. Lange & Sohne White Gold Saxonia Ref. 878.038 (New Arrival)

A. Lange & Sohne White Gold Saxonia Ref. 878.038 (New Arrival)

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A. Lange & Sohne White Gold Lange 1 Ref. 101.039

A. Lange & Sohne White Gold Lange 1 Ref. 101.039

A. Lange & Sohne White Gold Lange 1 Ref. 101.039

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Rolex White Gold Day-Date Ref. 19019

Rolex White Gold Day-Date Ref. 19019

Rolex White Gold Day-Date Ref. 19019

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Rolex Steel Daytona Big Red Ref. 6263 in Incredible Original Condition

Rolex Steel Daytona Big Red Ref. 6263 in Incredible Original Condition

Rolex Steel Daytona Big Red Ref. 6263 in Incredible Original Condition

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Cartier Platinum Tank Obus European Watch & Clock, 1926

Cartier Platinum Tank Obus European Watch & Clock, 1926

Cartier Platinum Tank Obus European Watch & Clock, 1926

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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)

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Audemars Piguet Yellow Gold Royal Oak Ref. 56343 with Baguette Diamonds and Rubies

Audemars Piguet Yellow Gold Royal Oak Ref. 56343 with Baguette Diamonds and Rubies

Audemars Piguet Yellow Gold Royal Oak Ref. 56343 with Baguette Diamonds and Rubies

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New Arrivals Preview
 
Rolex Yellow Gold Queen Midas Watch Ref. 4314 with Lapis and Diamond Dial (New Arrival)

Rolex Yellow Gold Queen Midas Watch Ref. 4314 with Lapis and Diamond Dial (New Arrival)

Rolex Yellow Gold Queen Midas Watch Ref. 4314 with Lapis and Diamond Dial (New Arrival)

$38,000 USD
 
Patek Philippe White Gold Baguette Diamond Watch Ref. 3540 (New Arrival)

Patek Philippe White Gold Baguette Diamond Watch Ref. 3540 (New Arrival)

Patek Philippe White Gold Baguette Diamond Watch Ref. 3540 (New Arrival)

$30,000 USD
 
Vacheron Constantin Yellow Gold Chronograph Watch Ref. 4178 with Important Provenance (New Arrival)

Vacheron Constantin Yellow Gold Chronograph Watch Ref. 4178 with Important Provenance (New Arrival)

Vacheron Constantin Yellow Gold Chronograph Watch Ref. 4178 with Important Provenance (New Arrival)

$60,000 USD
 
Breguet Cushion Shaped Diver 200m Watch (New Arrival)

Breguet Cushion Shaped Diver 200m Watch (New Arrival)

Breguet Cushion Shaped Diver 200m Watch (New Arrival)

$58,000 USD
 
Audemars Piguet White Gold Rectangular Watch with Lapis Watch (New Arrival)

Audemars Piguet White Gold Rectangular Watch with Lapis Watch (New Arrival)

Audemars Piguet White Gold Rectangular Watch with Lapis Watch (New Arrival)

$18,000 USD
 
Cartier Yellow Gold Tank Normale Bracelet Watch  Ref. 78092 (New Arrival)

Cartier Yellow Gold Tank Normale Bracelet Watch Ref. 78092 (New Arrival)

Cartier Yellow Gold Tank Normale Bracelet Watch Ref. 78092 (New Arrival)

$36,000 USD
 
Cartier - Cartier Yellow Gold Tank Reverso (New Arrival) - The Keystone Watches

Cartier Yellow Gold Tank Reverso (New Arrival)

Cartier Yellow Gold Tank Reverso (New Arrival)

$34,500 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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