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Patek Philippe Platinum Perpetual Calendar Black Dial Watch Ref. 3970

Patek Philippe Platinum Perpetual Calendar Black Dial Watch Ref. 3970

Patek Philippe Platinum Perpetual Calendar Black Dial Watch Ref. 3970

$295,000 USD
 
Breguet Yellow Gold Classique Heures Sautantes Jump Hour Ref. 3420

Breguet Yellow Gold Classique Heures Sautantes Jump Hour Ref. 3420

Breguet Yellow Gold Classique Heures Sautantes Jump Hour Ref. 3420

$55,000 USD
 
Vacheron Constantin Yellow Gold Pocket Watch

Vacheron Constantin Yellow Gold Pocket Watch

Vacheron Constantin Yellow Gold Pocket Watch

$7,600 USD
 
Patek Philippe White Gold Bracelet Watch Ref. 3528

Patek Philippe White Gold Bracelet Watch Ref. 3528

Patek Philippe White Gold Bracelet Watch Ref. 3528

$14,500 USD
 
Patek Philippe Yellow Gold Calatrava Ref. 1589 with Dore Dial and Portuguese Hallmarks

Patek Philippe Yellow Gold Calatrava Ref. 1589 with Dore Dial and Portuguese Hallmarks

Patek Philippe Yellow Gold Calatrava Ref. 1589 with Dore Dial and Portuguese Hallmarks

$39,500 USD
 
Patek Philippe Yellow Gold Enamel Dial Calatrava Watch Ref. 2526

Patek Philippe Yellow Gold Enamel Dial Calatrava Watch Ref. 2526

Patek Philippe Yellow Gold Enamel Dial Calatrava Watch Ref. 2526

$75,000 USD
 
Rolex - Rolex Yellow Gold Day-Date Ref. 18238 with Howlite Dial - The Keystone Watches

Rolex Yellow Gold Day-Date Ref. 18238 with Howlite Dial

Rolex Yellow Gold Day-Date Ref. 18238 with Howlite Dial

$50,000 USD
 
Rolex Yellow Gold Day-Date Watch Ref. 18238 with 6/9 Diamond Cachalong Stone Dial

Rolex Yellow Gold Day-Date Watch Ref. 18238 with 6/9 Diamond Cachalong Stone Dial

Rolex Yellow Gold Day-Date Watch Ref. 18238 with 6/9 Diamond Cachalong Stone Dial

$75,000 USD
 
Rolex - Rolex Pink Gold Square Bracelet Watch Ref. 9800 - The Keystone Watches

Rolex Pink Gold Square Bracelet Watch Ref. 9800

Rolex Pink Gold Square Bracelet Watch Ref. 9800

$19,500 USD
 
Rolex Yellow Gold Bracelet Watch, Made in England

Rolex Yellow Gold Bracelet Watch, Made in England

Rolex Yellow Gold Bracelet Watch, Made in England

$32,000 USD
 
Patek Philippe Pink Gold Perpetual Calendar Chronograph Watch Ref. 5970 (Archive and Second Caseback)

Patek Philippe Pink Gold Perpetual Calendar Chronograph Watch Ref. 5970 (Archive and Second Caseback)

Patek Philippe Pink Gold Perpetual Calendar Chronograph Watch Ref. 5970 (Archive and Second Caseback)

Sold Out

 
Rolex Steel Oyster Cosmograph Daytona Ref. 6265 with Black Dial

Rolex Steel Oyster Cosmograph Daytona Ref. 6265 with Black Dial

Rolex Steel Oyster Cosmograph Daytona Ref. 6265 with Black Dial

$82,000 USD
 
Vacheron Constantin Yellow Gold Manual-wind Watch Ref. 4600

Vacheron Constantin Yellow Gold Manual-wind Watch Ref. 4600

Vacheron Constantin Yellow Gold Manual-wind Watch Ref. 4600

$9,500 USD
 
Audemars Piguet Mini Cobra Hexagon with Lapis Dial

Audemars Piguet Mini Cobra Hexagon with Lapis Dial

Audemars Piguet Mini Cobra Hexagon with Lapis Dial

$38,000 USD
 
Audemars Piguet Platinum Quantieme Perpetual Ref. 25668PT

Audemars Piguet Platinum Quantieme Perpetual Ref. 25668PT

Audemars Piguet Platinum Quantieme Perpetual Ref. 25668PT

$150,000 USD
 
Patek Philippe Yellow Gold Calatrava Automatic Ref. 3435

Patek Philippe Yellow Gold Calatrava Automatic Ref. 3435

Patek Philippe Yellow Gold Calatrava Automatic Ref. 3435

$18,500 USD
 
Roger Dubuis White Gold Hommage H37 with White Breguet Numeral Dial

Roger Dubuis White Gold Hommage H37 with White Breguet Numeral Dial

Roger Dubuis White Gold Hommage H37 with White Breguet Numeral Dial

$48,000 USD
 
Audemars Piguet Yellow Gold Disco Volante with Concentric Case, Dial and Integrated Bracelet

Audemars Piguet Yellow Gold Disco Volante with Concentric Case, Dial and Integrated Bracelet

Audemars Piguet Yellow Gold Disco Volante with Concentric Case, Dial and Integrated Bracelet

$70,000 USD
 
Rolex Cellini Yellow Gold Ribbed Case Blue Dial Ref. 4016/8

Rolex Cellini Yellow Gold Ribbed Case Blue Dial Ref. 4016/8

Rolex Cellini Yellow Gold Ribbed Case Blue Dial Ref. 4016/8

$18,500 USD
 
Cartier Yellow Gold Tank London Watch

Cartier Yellow Gold Tank London Watch

Cartier Yellow Gold Tank London Watch

$76,000 USD
 
Piaget Two Tone Polo Ref. 8131C701

Piaget Two Tone Polo Ref. 8131C701

Piaget Two Tone Polo Ref. 8131C701

$18,500 USD
 
Patek Philippe - Patek Philippe White Gold Ellipse Ref. 3589 with Blue Dial - The Keystone Watches

Patek Philippe White Gold Ellipse Ref. 3589 with Blue Dial

Patek Philippe White Gold Ellipse Ref. 3589 with Blue Dial

$20,500 USD
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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.

Stay in touch.

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