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Patek Philippe - Patek Philippe Yellow Gold Enamel Engraved Pocket Watch from 1921 - The Keystone Watches

Patek Philippe Yellow Gold Enamel Engraved Pocket Watch from 1921

Patek Philippe Yellow Gold Enamel Engraved Pocket Watch from 1921

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Rolex - Rolex Two-Tone Zenith Daytona Ref. 16523 with Champagne Dial - The Keystone Watches

Rolex Two-Tone Zenith Daytona Ref. 16523 with Champagne Dial

Rolex Two-Tone Zenith Daytona Ref. 16523 with Champagne Dial

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Rolex - Rolex Two-Tone Zenith Daytona Ref. 16523 - The Keystone Watches

Rolex Two-Tone Zenith Daytona Ref. 16523

Rolex Two-Tone Zenith Daytona Ref. 16523

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Audemars Piguet - Audemars Piguet Steel Royal Oak Ref. 14790 with Yves Klein Blue Dial - The Keystone Watches

Audemars Piguet Steel Royal Oak Ref. 14790 with Yves Klein Blue Dial

Audemars Piguet Steel Royal Oak Ref. 14790 with Yves Klein Blue Dial

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Patek Philippe - Patek Philippe Steel Nautilus Ref. 3800 with Rare Arabic Numeral Dial and Original Warranty - The Keystone Watches

Patek Philippe Steel Nautilus Ref. 3800 with Rare Arabic Numeral Dial and Original Warranty

Patek Philippe Steel Nautilus Ref. 3800 with Rare Arabic Numeral Dial and Original Warranty

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Rolex - Rolex Steel Zenith Daytona Ref 16520 with Original Warranty - The Keystone Watches

Rolex Steel Zenith Daytona Ref 16520 with Original Warranty

Rolex Steel Zenith Daytona Ref 16520 with Original Warranty

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MB&F - MB&F Rose Gold Legacy Machine One - The Keystone Watches

MB&F Rose Gold Legacy Machine One

MB&F Rose Gold Legacy Machine One

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Cartier - Cartier Yellow Gold Tank Americaine Automatic - The Keystone Watches

Cartier Yellow Gold Tank Americaine Automatic

Cartier Yellow Gold Tank Americaine Automatic

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Rolex - Rolex White Gold Day-Date Ref. 118239 - The Keystone Watches

Rolex White Gold Day-Date Ref. 118239

Rolex White Gold Day-Date Ref. 118239

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Patek Philippe Steel Aquanaut Ref. 4960 for Japan Market

Patek Philippe Steel Aquanaut Ref. 4960 for Japan Market

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Cartier - Cartier Yellow Gold Tank Paris Mechanical Watch - The Keystone Watches

Cartier Yellow Gold Tank Paris Mechanical Watch

Cartier Yellow Gold Tank Paris Mechanical Watch

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Rolex - Rolex Yellow Gold Day-Date Watch Ref. 18238, Like New Old Stock - The Keystone Watches

Rolex Yellow Gold Day-Date Watch Ref. 18238, Like New Old Stock

Rolex Yellow Gold Day-Date Watch Ref. 18238, Like New Old Stock

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Rolex - Rolex Steel Daytona Ref. 16520 with Papers - The Keystone Watches

Rolex Steel Daytona Ref. 16520 with Papers

Rolex Steel Daytona Ref. 16520 with Papers

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Rolex - Rolex Steel Big Red Daytona Ref. 6263 - The Keystone Watches

Rolex Steel Big Red Daytona Ref. 6263

Rolex Steel Big Red Daytona Ref. 6263

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Rolex - Rolex Yellow Gold Day-Date Ref. 18038 with Black Diamond Dial - The Keystone Watches

Rolex Yellow Gold Day-Date Ref. 18038 with Black Diamond Dial

Rolex Yellow Gold Day-Date Ref. 18038 with Black Diamond Dial

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Patek Philippe - Patek Philippe White Gold Mechanical Watch Ref. 3544 - The Keystone Watches

Patek Philippe White Gold Mechanical Watch Ref. 3544

Patek Philippe White Gold Mechanical Watch Ref. 3544

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Rolex - Rolex Yellow Gold GMT-Master Diamond Ruby Watch Ref. 16718 - The Keystone Watches

Rolex Yellow Gold GMT-Master Diamond Ruby Watch Ref. 16718

Rolex Yellow Gold GMT-Master Diamond Ruby Watch Ref. 16718

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Rolex - Rolex Two Tone GMT-Master Ref. 16713 with Original Warranty and Hang Tag - The Keystone Watches

Rolex Two Tone GMT-Master Ref. 16713 with Original Warranty and Hang Tag

Rolex Two Tone GMT-Master Ref. 16713 with Original Warranty and Hang Tag

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Patek Philippe - Patek Philippe White Gold Perpetual Calendar Watch Ref. 5140 - The Keystone Watches

Patek Philippe White Gold Perpetual Calendar Watch Ref. 5140

Patek Philippe White Gold Perpetual Calendar Watch Ref. 5140

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Breguet - Breguet White Gold Marine Automatic Watch Ref. 3400 - The Keystone Watches

Breguet White Gold Marine Automatic Watch Ref. 3400

Breguet White Gold Marine Automatic Watch Ref. 3400

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A. Lange & Sohne - A. Lange & Sohne Yellow Gold Lange 1 Ref. 101.021 - The Keystone Watches

A. Lange & Sohne Yellow Gold Lange 1 Ref. 101.021

A. Lange & Sohne Yellow Gold Lange 1 Ref. 101.021

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Cartier - Cartier Yellow Gold Tank Ceinture Automatic Watch on Original Bracelet - The Keystone Watches

Cartier Yellow Gold Tank Ceinture Automatic Watch on Original Bracelet

Cartier Yellow Gold Tank Ceinture Automatic Watch on Original Bracelet

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Rolex - Rolex Two-Tone Zenith Daytona Ref. 16523 with Original Warranty - The Keystone Watches

Rolex Two-Tone Zenith Daytona Ref. 16523 with Original Warranty

Rolex Two-Tone Zenith Daytona Ref. 16523 with Original Warranty

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Patek Philippe - Patek Philippe Steel Aquanaut Ref. 5167 - The Keystone Watches

Patek Philippe Steel Aquanaut Ref. 5167

Patek Philippe Steel Aquanaut Ref. 5167

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

Patek Philippe Platinum Annual Calendar Chronograph Ref. 5960

Patek Philippe Platinum Annual Calendar Chronograph Ref. 5960

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Rolex - Rolex White Gold Day-Date Ref. 118239 - The Keystone Watches

Rolex White Gold Day-Date Ref. 118239

Rolex White Gold Day-Date Ref. 118239

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Daniel Roth - Daniel Roth Yellow Gold Moonphase Power Reserve Watch - The Keystone Watches

Daniel Roth Yellow Gold Moonphase Power Reserve Watch

Daniel Roth Yellow Gold Moonphase Power Reserve Watch

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Breguet - Breguet Yellow Gold Classique Perpetual Calendar Watch Ref. 3050 - The Keystone Watches

Breguet Yellow Gold Classique Perpetual Calendar Watch Ref. 3050

Breguet Yellow Gold Classique Perpetual Calendar Watch Ref. 3050

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De Bethune - De Bethune Titanium Big Power Super Sport Ref. DB24 - The Keystone Watches

De Bethune Titanium Big Power Super Sport Ref. DB24

De Bethune Titanium Big Power Super Sport Ref. DB24

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Cartier - Cartier Yellow Gold Ceinture Automatique Watch - The Keystone Watches

Cartier Yellow Gold Ceinture Automatique Watch

Cartier Yellow Gold Ceinture Automatique Watch

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Patek Philippe - Patek Philippe Yellow Gold Bracelet Watch Ref. 3860 with Box and Papers - The Keystone Watches

Patek Philippe Yellow Gold Bracelet Watch Ref. 3860 with Box and Papers

Patek Philippe Yellow Gold Bracelet Watch Ref. 3860 with Box and Papers

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Audemars Piguet - Audemars Piguet Royal Oak Tantalum and Rose Ref. 56175 - The Keystone Watches

Audemars Piguet Royal Oak Tantalum and Rose Ref. 56175

Audemars Piguet Royal Oak Tantalum and Rose Ref. 56175

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Watch Ref. 5140 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Watch Ref. 5140

Patek Philippe Platinum Perpetual Calendar Watch Ref. 5140

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Rolex - Rolex Yellow Gold Day-Date Ref. 18378 with Factory Ruby and Diamond Bezel - The Keystone Watches

Rolex Yellow Gold Day-Date Ref. 18378 with Factory Ruby and Diamond Bezel

Rolex Yellow Gold Day-Date Ref. 18378 with Factory Ruby and Diamond Bezel

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Rolex - Rolex Yellow Gold Day-Date Ref. 18048 with Factory Sapphire Diamond String Dial - The Keystone Watches

Rolex Yellow Gold Day-Date Ref. 18048 with Factory Sapphire Diamond String Dial

Rolex Yellow Gold Day-Date Ref. 18048 with Factory Sapphire Diamond String Dial

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Patek Philippe - Patek Philippe Steel Nautilus Watch Ref. 3700 - The Keystone Watches

Patek Philippe Steel Nautilus Watch Ref. 3700

Patek Philippe Steel Nautilus Watch Ref. 3700

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New Arrivals Preview
 
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)

$150,000 USD
 
Patek Philippe White Gold Calatrava Watch Ref. 4189 (New Arrival)

Patek Philippe White Gold Calatrava Watch Ref. 4189 (New Arrival)

Patek Philippe White Gold Calatrava Watch Ref. 4189 (New Arrival)

$9,800 USD
 
Rolex Yellow Gold Day-Date Watch Ref. 1803 with Claw Dial (New Arrival)

Rolex Yellow Gold Day-Date Watch Ref. 1803 with Claw Dial (New Arrival)

Rolex Yellow Gold Day-Date Watch Ref. 1803 with Claw Dial (New Arrival)

$18,750 USD
 
Boucheron - Boucheron Yellow Gold Invisible Set Sapphire Watch (New Arrival) - The Keystone Watches

Boucheron Yellow Gold Invisible Set Sapphire Watch (New Arrival)

Boucheron Yellow Gold Invisible Set Sapphire Watch (New Arrival)

$9,500 USD
 
Rolex - Rolex Yellow Gold Cellini Watch Ref. 4014/8 with Orange Dial (New Arrival) - The Keystone Watches

Rolex Yellow Gold Cellini Watch Ref. 4014/8 with Orange Dial (New Arrival)

Rolex Yellow Gold Cellini Watch Ref. 4014/8 with Orange Dial (New Arrival)

$7,500 USD
 
Rolex Steel Submariner Ref. 5513 with Pumkin Lume (New Arrival)

Rolex Steel Submariner Ref. 5513 with Pumkin Lume (New Arrival)

Rolex Steel Submariner Ref. 5513 with Pumkin Lume (New Arrival)

$15,500 USD
 
Patek Philiipe White Gold Calatrava Watch Ref. 3919 (New Arrival)

Patek Philiipe White Gold Calatrava Watch Ref. 3919 (New Arrival)

Patek Philiipe White Gold Calatrava Watch Ref. 3919 (New Arrival)

$15,000 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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