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Patek Philippe - Patek Philippe Annual Calendar Chronograph Watch Ref. 5905 - The Keystone Watches

Patek Philippe Annual Calendar Chronograph Watch Ref. 5905

Patek Philippe Annual Calendar Chronograph Watch Ref. 5905

Sold Out

 
Cartier - Cartier White Gold Tortue Monopoussoir Chronograph Watch Ref. 2762 - The Keystone Watches

Cartier White Gold Tortue Monopoussoir Chronograph Watch Ref. 2762

Cartier White Gold Tortue Monopoussoir Chronograph Watch Ref. 2762

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Breitling - Breitling Steel Chronograph Ref. 815, also Known as the Long Playing Chronograph - The Keystone Watches

Breitling Steel Chronograph Ref. 815, also Known as the Long Playing Chronograph

Breitling Steel Chronograph Ref. 815, also Known as the Long Playing Chronograph

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Rolex - Rolex Oyster Chronograph Jean Claude Killy Watch, Ref. 6236 - The Keystone Watches

Rolex Oyster Chronograph Jean Claude Killy Watch, Ref. 6236

Rolex Oyster Chronograph Jean Claude Killy Watch, Ref. 6236

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Patek Philippe - Patek Philippe Platinum Annual Calendar Chronograph Watch, Ref. 5960 - The Keystone Watches

Patek Philippe Platinum Annual Calendar Chronograph Watch, Ref. 5960

Patek Philippe Platinum Annual Calendar Chronograph Watch, Ref. 5960

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Rolex - Rolex Oyster Chronograph Anti-Magnetic Watch Ref. 6234 - The Keystone Watches

Rolex Oyster Chronograph Anti-Magnetic Watch Ref. 6234

Rolex Oyster Chronograph Anti-Magnetic Watch Ref. 6234

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Patek Philippe - Patek Philippe White Gold Chronograph Watch Ref. 5070 - The Keystone Watches

Patek Philippe White Gold Chronograph Watch Ref. 5070

Patek Philippe White Gold Chronograph Watch Ref. 5070

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Patek Philippe - Patek Philippe Platinum Chronograph Watch Ref. 5170 - The Keystone Watches

Patek Philippe Platinum Chronograph Watch Ref. 5170

Patek Philippe Platinum Chronograph Watch Ref. 5170

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Heuer - Heuer Bundeswehr Military Chronograph Watch Ref. 1550 - The Keystone Watches

Heuer Bundeswehr Military Chronograph Watch Ref. 1550

Heuer Bundeswehr Military Chronograph Watch Ref. 1550

Sold Out

 
Audemars Piguet - Audemars Piguet Royal Oak Chronograph Watch Ref. 26320 - The Keystone Watches

Audemars Piguet Royal Oak Chronograph Watch Ref. 26320

Audemars Piguet Royal Oak Chronograph Watch Ref. 26320

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Patek Philippe - Patek Philippe Rose Gold Perpetual Calendar Chronograph Watch Ref. 5970 - The Keystone Watches

Patek Philippe Rose Gold Perpetual Calendar Chronograph Watch Ref. 5970

Patek Philippe Rose Gold Perpetual Calendar Chronograph Watch Ref. 5970

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Cartier - Cartier White Gold Tortue Monopoussoir Chronograph Watch Ref. 2396 - The Keystone Watches

Cartier White Gold Tortue Monopoussoir Chronograph Watch Ref. 2396

Cartier White Gold Tortue Monopoussoir Chronograph Watch Ref. 2396

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Patek Philippe - Patek Philippe Platinum Chronograph Watch Ref. 5070, Retailed by Tiffany & Co. - The Keystone Watches

Patek Philippe Platinum Chronograph Watch Ref. 5070, Retailed by Tiffany & Co.

Patek Philippe Platinum Chronograph Watch Ref. 5070, Retailed by Tiffany & Co.

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

Patek Philippe Rose Gold Chronograph Watch Ref. 5070

Patek Philippe Rose Gold Chronograph Watch Ref. 5070

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Patek Philippe - Patek Philippe Platinum Chronograph Watch Ref. 5070 - The Keystone Watches

Patek Philippe Platinum Chronograph Watch Ref. 5070

Patek Philippe Platinum Chronograph Watch Ref. 5070

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Audemars Piguet - Audemars Piguet Royal Oak Chronograph Watch Ref. 26315 - The Keystone Watches

Audemars Piguet Royal Oak Chronograph Watch Ref. 26315

Audemars Piguet Royal Oak Chronograph Watch Ref. 26315

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Cartier - Cartier White Gold Tortue Monopoussoir Chronograph Watch Ref. 2396 with Original Box and Paper - The Keystone Watches

Cartier White Gold Tortue Monopoussoir Chronograph Watch Ref. 2396 with Original Box and Paper

Cartier White Gold Tortue Monopoussoir Chronograph Watch Ref. 2396 with Original Box and Paper

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Patek Philippe - Patek Philippe Yellow Gold Perpetual Calendar Chronograph Watch Ref. 3970 - The Keystone Watches

Patek Philippe Yellow Gold Perpetual Calendar Chronograph Watch Ref. 3970

Patek Philippe Yellow Gold Perpetual Calendar Chronograph Watch Ref. 3970

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Chronograph Watch Ref. 5270 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Chronograph Watch Ref. 5270

Patek Philippe Platinum Perpetual Calendar Chronograph Watch Ref. 5270

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Chronograph Watch Ref. 5970 Unworn and in Original Seal - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Chronograph Watch Ref. 5970 Unworn and in Original Seal

Patek Philippe Platinum Perpetual Calendar Chronograph Watch Ref. 5970 Unworn and in Original Seal

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Audemars Piguet - Audemars Piguet Royal Oak Offshore Chronograph Watch Ref. 26470 - The Keystone Watches

Audemars Piguet Royal Oak Offshore Chronograph Watch Ref. 26470

Audemars Piguet Royal Oak Offshore Chronograph Watch Ref. 26470

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Patek Philippe - Patek Philippe Nautilus Chronograph Watch Ref. 5990 - The Keystone Watches

Patek Philippe Nautilus Chronograph Watch Ref. 5990

Patek Philippe Nautilus Chronograph Watch Ref. 5990

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New Arrivals Preview
 
Patek Philippe White Gold Perpetual Calendar Ref. 5940 (New Arrival)

Patek Philippe White Gold Perpetual Calendar Ref. 5940 (New Arrival)

Patek Philippe White Gold Perpetual Calendar Ref. 5940 (New Arrival)

$50,000 USD
 
Rolex Cosmograph Daytona Big Red Ref. 6265 Box and Papers (New Arrival)

Rolex Cosmograph Daytona Big Red Ref. 6265 Box and Papers (New Arrival)

Rolex Cosmograph Daytona Big Red Ref. 6265 Box and Papers (New Arrival)

$97,500 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
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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