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Richard Mille - Richard Mille Automatic RM 023 Titanium - The Keystone Watches

Richard Mille Automatic RM 023 Titanium

Richard Mille Automatic RM 023 Titanium

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Diamond Watch Ref. 5971 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Diamond Watch Ref. 5971

Patek Philippe Platinum Perpetual Calendar Diamond Watch Ref. 5971

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A. Lange & Sohne - A. Lange & Sohne White Gold Perpetual Calendar Watch Ref. 310.026 - The Keystone Watches

A. Lange & Sohne White Gold Perpetual Calendar Watch Ref. 310.026

A. Lange & Sohne White Gold Perpetual Calendar Watch Ref. 310.026

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Audemars Piguet - Audemars Piguet White Gold Diamond Millenary Watch Ref. 15109 - The Keystone Watches

Audemars Piguet White Gold Diamond Millenary Watch Ref. 15109

Audemars Piguet White Gold Diamond Millenary Watch Ref. 15109

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Rolex - Rolex Steel Zenith Daytona Ref. 16520 with Original Caseback Sticker - The Keystone Watches

Rolex Steel Zenith Daytona Ref. 16520 with Original Caseback Sticker

Rolex Steel Zenith Daytona Ref. 16520 with Original Caseback Sticker

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Audemars Piguet - Audemars Piguet Ceramic Royal Oak Perpetual Watch Ref. 26579CE - The Keystone Watches

Audemars Piguet Ceramic Royal Oak Perpetual Watch Ref. 26579CE

Audemars Piguet Ceramic Royal Oak Perpetual Watch Ref. 26579CE

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Rolex - Rolex Yellow Gold Rainbow Daytona Watch Ref. 116598 - The Keystone Watches

Rolex Yellow Gold Rainbow Daytona Watch Ref. 116598

Rolex Yellow Gold Rainbow Daytona Watch Ref. 116598

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Rolex - Rolex White Gold Rainbow Daytona Watch Ref. 116599 - The Keystone Watches

Rolex White Gold Rainbow Daytona Watch Ref. 116599

Rolex White Gold Rainbow Daytona Watch Ref. 116599

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Patek Philippe - Patek Philippe White Gold Calatrava Ref. 570 - The Keystone Watches

Patek Philippe White Gold Calatrava Ref. 570

Patek Philippe White Gold Calatrava Ref. 570

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Patek Philippe - Patek Philippe Calatrava Handicraft New York Jazz Edition Watch Ref. 5089 in Unworn Condition - The Keystone Watches

Patek Philippe Calatrava Handicraft New York Jazz Edition Watch Ref. 5089 in Unworn Condition

Patek Philippe Calatrava Handicraft New York Jazz Edition Watch Ref. 5089 in Unworn Condition

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Rolex - Rolex Platinum Cosmograph Daytona Diamond Watch Ref. 116576 - The Keystone Watches

Rolex Platinum Cosmograph Daytona Diamond Watch Ref. 116576

Rolex Platinum Cosmograph Daytona Diamond Watch Ref. 116576

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Patek Philippe - Patek Philippe Platinum Split Seconds Monopusher Ref. 5370 - The Keystone Watches

Patek Philippe Platinum Split Seconds Monopusher Ref. 5370

Patek Philippe Platinum Split Seconds Monopusher Ref. 5370

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Patek Philippe - Patek Philippe Nautilus Power Reserve Watch Ref. 3710 with Original Box and Papers - The Keystone Watches

Patek Philippe Nautilus Power Reserve Watch Ref. 3710 with Original Box and Papers

Patek Philippe Nautilus Power Reserve Watch Ref. 3710 with Original Box and Papers

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Audemars Piguet - Audemars Piguet White Gold Edward Piguet Tourbillon Watch - The Keystone Watches

Audemars Piguet White Gold Edward Piguet Tourbillon Watch

Audemars Piguet White Gold Edward Piguet Tourbillon Watch

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Rolex - Rolex Yellow Gold Zenith Daytona MOP, Ref. 16518 - The Keystone Watches

Rolex Yellow Gold Zenith Daytona MOP, Ref. 16518

Rolex Yellow Gold Zenith Daytona MOP, Ref. 16518

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Rolex - Rolex White Gold Daytona Ref. 116519 with Sodalite Dial, Box and Papers - The Keystone Watches

Rolex White Gold Daytona Ref. 116519 with Sodalite Dial, Box and Papers

Rolex White Gold Daytona Ref. 116519 with Sodalite Dial, Box and Papers

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Patek Philippe - Patek Philippe White Gold Backwind Calatrava Ref. 3569 - The Keystone Watches

Patek Philippe White Gold Backwind Calatrava Ref. 3569

Patek Philippe White Gold Backwind Calatrava Ref. 3569

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Rolex - Rolex White and Yellow Gold Cellini Ref. 4150 - The Keystone Watches

Rolex White and Yellow Gold Cellini Ref. 4150

Rolex White and Yellow Gold Cellini Ref. 4150

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Breguet - Breguet White Gold Chronograph Skeleton Baguette Diamond Watch - The Keystone Watches

Breguet White Gold Chronograph Skeleton Baguette Diamond Watch

Breguet White Gold Chronograph Skeleton Baguette Diamond Watch

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

Cartier Paris Yellow Gold Tonneau Mechanical Watch

Cartier Paris Yellow Gold Tonneau Mechanical Watch

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Cartier - Cartier Skeleton Tourbillon Rotonde De Cartier Astromysterieux - The Keystone Watches

Cartier Skeleton Tourbillon Rotonde De Cartier Astromysterieux

Cartier Skeleton Tourbillon Rotonde De Cartier Astromysterieux

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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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New Arrivals Preview
 
Cartier Tank Coussin Bamboo Ref. 78102 (New Arrival)

Cartier Tank Coussin Bamboo Ref. 78102 (New Arrival)

Cartier Tank Coussin Bamboo Ref. 78102 (New Arrival)

$125,000 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
 
Piaget Yellow Gold Lapis Lazuli & Jade Cuff Watch (New Arrivals)

Piaget Yellow Gold Lapis Lazuli & Jade Cuff Watch (New Arrivals)

Piaget Yellow Gold Lapis Lazuli & Jade Cuff Watch (New Arrivals)

$48,000 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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