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A. Lange & Sohne Yellow Gold Saxonia Ref. 105.001 with a Wellendorff Bracelet

A. Lange & Sohne Yellow Gold Saxonia Ref. 105.001 with a Wellendorff Bracelet

A. Lange & Sohne Yellow Gold Saxonia Ref. 105.001 with a Wellendorff Bracelet

$82,000 USD
 
Cartier Platinum Diamond Bracelet Watch with Sector Dial

Cartier Platinum Diamond Bracelet Watch with Sector Dial

Cartier Platinum Diamond Bracelet Watch with Sector Dial

$31,000 USD
 
Piaget Yellow Gold Diamond and Ruby Bracelet Watch Ref. 49141

Piaget Yellow Gold Diamond and Ruby Bracelet Watch Ref. 49141

Piaget Yellow Gold Diamond and Ruby Bracelet Watch Ref. 49141

$95,000 USD
 
Piaget Yellow Gold Belt Style Bracelet Watch

Piaget Yellow Gold Belt Style Bracelet Watch

Piaget Yellow Gold Belt Style Bracelet Watch

$25,000 USD
 
Patek Philippe Yellow Gold First Series Perpetual Calendar Chronograph, Ref. 2499, Made in 1952

Patek Philippe Yellow Gold First Series Perpetual Calendar Chronograph, Ref. 2499, Made in 1952

Patek Philippe Yellow Gold First Series Perpetual Calendar Chronograph, Ref. 2499, Made in 1952

$5,000,000 USD
 
Rolex Yellow Gold Ref. 6517 with State of Qatar Emblem and Gay Freres Bracelet

Rolex Yellow Gold Ref. 6517 with State of Qatar Emblem and Gay Freres Bracelet

Rolex Yellow Gold Ref. 6517 with State of Qatar Emblem and Gay Freres Bracelet

$25,000 USD
 
Rolex White Gold Datejust Ref. 6917 with Pink Stella

Rolex White Gold Datejust Ref. 6917 with Pink Stella

Rolex White Gold Datejust Ref. 6917 with Pink Stella

$28,500 USD
 
Audemars Piguet White Gold Falcons Eye Dial Automatic

Audemars Piguet White Gold Falcons Eye Dial Automatic

Audemars Piguet White Gold Falcons Eye Dial Automatic

$19,500 USD
 
Audemars Piguet White Gold Bracelet Watch

Audemars Piguet White Gold Bracelet Watch

Audemars Piguet White Gold Bracelet Watch

$8,200 USD
 
Rolex White Gold Day-Date Green Stella Watch Ref. 1803

Rolex White Gold Day-Date Green Stella Watch Ref. 1803

Rolex White Gold Day-Date Green Stella Watch Ref. 1803

$150,000 USD
 
Patek Philippe Steel Ref. 3900/1A with Original Paper

Patek Philippe Steel Ref. 3900/1A with Original Paper

Patek Philippe Steel Ref. 3900/1A with Original Paper

$54,000 USD
 
Cartier Yellow Gold Baignoire Watch with Baguette Diamond Bezel, Limited Edition

Cartier Yellow Gold Baignoire Watch with Baguette Diamond Bezel, Limited Edition

Cartier Yellow Gold Baignoire Watch with Baguette Diamond Bezel, Limited Edition

Sold Out

 
Rolex White Gold Day-Date Blue Stella Watch Ref. 1803

Rolex White Gold Day-Date Blue Stella Watch Ref. 1803

Rolex White Gold Day-Date Blue Stella Watch Ref. 1803

$185,000 USD
 
Patek Philippe Yellow Gold Chronograph Ref. 130 with Tropical Sector Dial

Patek Philippe Yellow Gold Chronograph Ref. 130 with Tropical Sector Dial

Patek Philippe Yellow Gold Chronograph Ref. 130 with Tropical Sector Dial

Sold Out

 
Patek Philippe Yellow Gold Chronograph Ref. 130, Retailed by Yard

Patek Philippe Yellow Gold Chronograph Ref. 130, Retailed by Yard

Patek Philippe Yellow Gold Chronograph Ref. 130, Retailed by Yard

Sold Out

 
Patek Philippe Yellow Gold Chronograph Two-Tone Dial, Ref. 530 Outstanding Original Condition

Patek Philippe Yellow Gold Chronograph Two-Tone Dial, Ref. 530 Outstanding Original Condition

Patek Philippe Yellow Gold Chronograph Two-Tone Dial, Ref. 530 Outstanding Original Condition

Sold Out

 
Rolex Yellow Gold GMT-Master Ref. 6542 with Bakelite Bezel

Rolex Yellow Gold GMT-Master Ref. 6542 with Bakelite Bezel

Rolex Yellow Gold GMT-Master Ref. 6542 with Bakelite Bezel

Sold Out

 
Patek Philippe Pink Gold Watch Ref. 2488

Patek Philippe Pink Gold Watch Ref. 2488

Patek Philippe Pink Gold Watch Ref. 2488

Sold Out

 
Patek Philippe White Gold Perpetual Calendar Ref. 5139

Patek Philippe White Gold Perpetual Calendar Ref. 5139

Patek Philippe White Gold Perpetual Calendar Ref. 5139

$42,000 USD
 
Daniel Roth Steel Small Seconds Automatic Watch Ref. 0257

Daniel Roth Steel Small Seconds Automatic Watch Ref. 0257

Daniel Roth Steel Small Seconds Automatic Watch Ref. 0257

Sold Out

 
Rolex Rose Gold Oyster Perpetual Datejust Ref. 1601

Rolex Rose Gold Oyster Perpetual Datejust Ref. 1601

Rolex Rose Gold Oyster Perpetual Datejust Ref. 1601

$35,000 USD
 
Rolex Yellow Gold Midsize Datejust Ref. 68258 with Pyramid and Diamond Bezel

Rolex Yellow Gold Midsize Datejust Ref. 68258 with Pyramid and Diamond Bezel

Rolex Yellow Gold Midsize Datejust Ref. 68258 with Pyramid and Diamond Bezel

Sold Out

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New Arrivals Preview
 
Rolex Yellow Gold Oyster Perpetual Day-Date Ref. 1803/8 with Claw Dial (New Arrival)

Rolex Yellow Gold Oyster Perpetual Day-Date Ref. 1803/8 with Claw Dial (New Arrival)

Rolex Yellow Gold Oyster Perpetual Day-Date Ref. 1803/8 with Claw Dial (New Arrival)

$10,800 USD
 
Patek Philippe White Gold Ref. 2592 (New Arrival)

Patek Philippe White Gold Ref. 2592 (New Arrival)

Patek Philippe White Gold Ref. 2592 (New Arrival)

$11,000 USD
 
Audemars Piguet Round UFO-Style Bracelet Watch (New Arrival)

Audemars Piguet Round UFO-Style Bracelet Watch (New Arrival)

Audemars Piguet Round UFO-Style Bracelet Watch (New Arrival)

$10,500 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
 
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
 
Chopard Yellow Gold Happy Diamonds Sapphire & Diamonds Ref. 27/6258-23 (New Arrival)

Chopard Yellow Gold Happy Diamonds Sapphire & Diamonds Ref. 27/6258-23 (New Arrival)

Chopard Yellow Gold Happy Diamonds Sapphire & Diamonds Ref. 27/6258-23 (New Arrival)

$11,500 USD
 
Cartier Pink Gold Tank on Bracelet Mecanique WGTA0010 with Warranty Card (New Arrival)

Cartier Pink Gold Tank on Bracelet Mecanique WGTA0010 with Warranty Card (New Arrival)

Cartier Pink Gold Tank on Bracelet Mecanique WGTA0010 with Warranty Card (New Arrival)

$26,000 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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