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Piaget - Piaget Yellow Gold Diamond Watch Ref. 9814 - The Keystone Watches

Piaget Yellow Gold Diamond Watch Ref. 9814

Piaget Yellow Gold Diamond Watch Ref. 9814

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Audemars Piguet - Audemars Piguet Two-Tone Royal Oak Ref. 56303 - The Keystone Watches

Audemars Piguet Two-Tone Royal Oak Ref. 56303

Audemars Piguet Two-Tone Royal Oak Ref. 56303

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Piaget White Gold Watch Ref. 9806 with Onyx & Mother of Pearl

Piaget White Gold Watch Ref. 9806 with Onyx & Mother of Pearl

Piaget White Gold Watch Ref. 9806 with Onyx & Mother of Pearl

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Chopard Yellow Gold Ref. 410430 with Onyx and Diamond Bezel

Chopard Yellow Gold Ref. 410430 with Onyx and Diamond Bezel

Chopard Yellow Gold Ref. 410430 with Onyx and Diamond Bezel

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Omega Yellow Gold DeVille Watch Ref. 7257 with Turquoise Dial

Omega Yellow Gold DeVille Watch Ref. 7257 with Turquoise Dial

Omega Yellow Gold DeVille Watch Ref. 7257 with Turquoise Dial

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Jean Ete Yellow Gold Watch with Lapis and Nephrite Jade

Jean Ete Yellow Gold Watch with Lapis and Nephrite Jade

Jean Ete Yellow Gold Watch with Lapis and Nephrite Jade

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Cartier Yellow Gold Santos Dumont Ref. 96061

Cartier Yellow Gold Santos Dumont Ref. 96061

Cartier Yellow Gold Santos Dumont Ref. 96061

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Audemars Piguet Yellow Gold Ladies Watch with Original Diamonds

Audemars Piguet Yellow Gold Ladies Watch with Original Diamonds

Audemars Piguet Yellow Gold Ladies Watch with Original Diamonds

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Piaget - Piaget Square Polo Ref. 7131 - The Keystone Watches

Piaget Square Polo Ref. 7131

Piaget Square Polo Ref. 7131

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Cartier White Gold Panther Mini Ref. WF3244F3

Cartier White Gold Panther Mini Ref. WF3244F3

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Audemars Piguet - Audemars Piguet White Gold Vintage Watch with Original Diamonds - The Keystone Watches

Audemars Piguet White Gold Vintage Watch with Original Diamonds

Audemars Piguet White Gold Vintage Watch with Original Diamonds

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Rolex Steel Submariner Ref. 5513

Rolex Steel Submariner Ref. 5513

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Patek Philippe - Patek Philippe White Gold Vintage Square Watch Ref. 4222 - The Keystone Watches

Patek Philippe White Gold Vintage Square Watch Ref. 4222

Patek Philippe White Gold Vintage Square Watch Ref. 4222

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Piaget - Piaget Yellow Gold Emperador Ref. 9131 - The Keystone Watches

Piaget Yellow Gold Emperador Ref. 9131

Piaget Yellow Gold Emperador Ref. 9131

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Ulysse Nardin - Ulysse Nardin Yellow Gold San Marco Ref. 131-77-9 with Cloisonne Ship Dial - The Keystone Watches

Ulysse Nardin Yellow Gold San Marco Ref. 131-77-9 with Cloisonne Ship Dial

Ulysse Nardin Yellow Gold San Marco Ref. 131-77-9 with Cloisonne Ship Dial

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Cartier - Cartier Ladies White Gold Diamond Panthere Ref. WF3118FK - The Keystone Watches

Cartier Ladies White Gold Diamond Panthere Ref. WF3118FK

Cartier Ladies White Gold Diamond Panthere Ref. WF3118FK

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Rolex - Rolex White Gold Day-Date Ref. 18239 - The Keystone Watches

Rolex White Gold Day-Date Ref. 18239

Rolex White Gold Day-Date Ref. 18239

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Rolex Steel GMT Master Ref. 16700 with Punched Papers

Rolex Steel GMT Master Ref. 16700 with Punched Papers

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Rolex - Rolex White Gold Day-Date Ref. 1803 - The Keystone Watches

Rolex White Gold Day-Date Ref. 1803

Rolex White Gold Day-Date Ref. 1803

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Audemars Piguet Yellow Gold Automatic Bracelet Watch

Audemars Piguet Yellow Gold Automatic Bracelet Watch

Audemars Piguet Yellow Gold Automatic Bracelet Watch

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Patek Philippe - Patek Philippe Yellow Gold Vintage Automatic Watch Ref. 3861/02 with Papers - The Keystone Watches

Patek Philippe Yellow Gold Vintage Automatic Watch Ref. 3861/02 with Papers

Patek Philippe Yellow Gold Vintage Automatic Watch Ref. 3861/02 with Papers

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Rolex - Rolex Steel Explorer Ref. 114270 with Z serial - The Keystone Watches

Rolex Steel Explorer Ref. 114270 with Z serial

Rolex Steel Explorer Ref. 114270 with Z serial

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New Arrivals Preview
 
Patek Philippe Yellow Gold Tonneau Ref. 2469 (New Arrival)

Patek Philippe Yellow Gold Tonneau Ref. 2469 (New Arrival)

Patek Philippe Yellow Gold Tonneau Ref. 2469 (New Arrival)

$19,800 USD
 
Tissot Steel Chronograph with Black Gilt Dial (New Arrival)

Tissot Steel Chronograph with Black Gilt Dial (New Arrival)

Tissot Steel Chronograph with Black Gilt Dial (New Arrival)

$16,000 USD
 
Breguet Steel Chronograph Watch, 1940s (New Arrival)

Breguet Steel Chronograph Watch, 1940s (New Arrival)

Breguet Steel Chronograph Watch, 1940s (New Arrival)

$75,000 USD
 
Cartier Yellow Gold Bracelet Watch (New Arrival)

Cartier Yellow Gold Bracelet Watch (New Arrival)

Cartier Yellow Gold Bracelet Watch (New Arrival)

$30,000 USD
 
Patek Philippe Yellow Gold Calatrava Breguet Numerals Ref. 2533 (New Arrival)

Patek Philippe Yellow Gold Calatrava Breguet Numerals Ref. 2533 (New Arrival)

Patek Philippe Yellow Gold Calatrava Breguet Numerals Ref. 2533 (New Arrival)

$105,000 USD
 
Vacheron Constantin - Vacheron Constantin Yellow Gold Chronograph Watch Ref. 4178 with Important Provenance (New Arrival) - The Keystone Watches

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
 
Audemars Piguet - Audemars Piguet White Gold Rectangular Watch with Lapis Watch (New Arrival) - The Keystone Watches

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
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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