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Patek Philippe - Patek Philippe White Gold Auto Ref. 3591 with Box and Papers - The Keystone Watches

Patek Philippe White Gold Auto Ref. 3591 with Box and Papers

Patek Philippe White Gold Auto Ref. 3591 with Box and Papers

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Rolex - Rolex Steel Datejust Ref. 1603 with Blue Buckley Dial (NEW ARRIVAL) - The Keystone Watches

Rolex Steel Datejust Ref. 1603 with Blue Buckley Dial (NEW ARRIVAL)

Rolex Steel Datejust Ref. 1603 with Blue Buckley Dial (NEW ARRIVAL)

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Rolex - Rolex Steel Zenith Daytona Ref. 16520 in New Old Stock Condition with Papers (NEW ARRIVAL) - The Keystone Watches

Rolex Steel Zenith Daytona Ref. 16520 in New Old Stock Condition with Papers (NEW ARRIVAL)

Rolex Steel Zenith Daytona Ref. 16520 in New Old Stock Condition with Papers (NEW ARRIVAL)

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Patek Philippe - Patek Philippe Yellow Gold Calatrava Watch Ref. 3445 (NEW ARRIVAL) - The Keystone Watches

Patek Philippe Yellow Gold Calatrava Watch Ref. 3445 (NEW ARRIVAL)

Patek Philippe Yellow Gold Calatrava Watch Ref. 3445 (NEW ARRIVAL)

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Audemars Piguet - Audemars Piguet White Gold Automatic Watch - The Keystone Watches

Audemars Piguet White Gold Automatic Watch

Audemars Piguet White Gold Automatic Watch

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Rolex - Rolex Yellow Gold Submariner Watch Ref. 16618 - The Keystone Watches

Rolex Yellow Gold Submariner Watch Ref. 16618

Rolex Yellow Gold Submariner Watch Ref. 16618

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Audemars Piguet - Audemars Piguet White Gold Automatic Watch Ref. 2591 with Cal 2072 Movement - The Keystone Watches

Audemars Piguet White Gold Automatic Watch Ref. 2591 with Cal 2072 Movement

Audemars Piguet White Gold Automatic Watch Ref. 2591 with Cal 2072 Movement

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Patek Philippe - Patek Philippe White Gold, Baguette Diamond and Onyx Watch Ref. 3625 (NEW ARRIVAL) - The Keystone Watches

Patek Philippe White Gold, Baguette Diamond and Onyx Watch Ref. 3625 (NEW ARRIVAL)

Patek Philippe White Gold, Baguette Diamond and Onyx Watch Ref. 3625 (NEW ARRIVAL)

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Audemars Piguet - Audemars Piguet White Gold Royal Oak Chronograph Japan Edition Watch 26239 - The Keystone Watches

Audemars Piguet White Gold Royal Oak Chronograph Japan Edition Watch 26239

Audemars Piguet White Gold Royal Oak Chronograph Japan Edition Watch 26239

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Vacheron Constantin - Vacheron Constantin White Gold Diamond Watch Ref. 6378Q - The Keystone Watches

Vacheron Constantin White Gold Diamond Watch Ref. 6378Q

Vacheron Constantin White Gold Diamond Watch Ref. 6378Q

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Breguet - Breguet Platinum Double Tourbillon Watch Ref. 5347PT - The Keystone Watches

Breguet Platinum Double Tourbillon Watch Ref. 5347PT

Breguet Platinum Double Tourbillon Watch Ref. 5347PT

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Patek Philippe Yellow Gold Calatrava Ref. 3520 Retailed by Tiffany

Patek Philippe Yellow Gold Calatrava Ref. 3520 Retailed by Tiffany

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Seiko Yellow Gold Astronomical Observatory Chronometer Ref. 4520-8020

Seiko Yellow Gold Astronomical Observatory Chronometer Ref. 4520-8020

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Rolex - Rolex Yellow Gold Day-Date Rainbow Watch Ref. 128348 - The Keystone Watches

Rolex Yellow Gold Day-Date Rainbow Watch Ref. 128348

Rolex Yellow Gold Day-Date Rainbow Watch Ref. 128348

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Audemars Piguet - Audemars Piguet White Gold and Diamond Jules Audemars Watch Ref. 15125BC - The Keystone Watches

Audemars Piguet White Gold and Diamond Jules Audemars Watch Ref. 15125BC

Audemars Piguet White Gold and Diamond Jules Audemars Watch Ref. 15125BC

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

Patek Philippe Rose Gold Perpetual Calendar Watch Ref. 5140

Patek Philippe Rose Gold Perpetual Calendar Watch Ref. 5140

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Piaget - Piaget White Gold Bracelet Watch Ref. 9752 - The Keystone Watches

Piaget White Gold Bracelet Watch Ref. 9752

Piaget White Gold Bracelet Watch Ref. 9752

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Piaget - Piaget White Gold Mechancial Watch Turquoise Dial Ref. 924N24 - The Keystone Watches

Piaget White Gold Mechancial Watch Turquoise Dial Ref. 924N24

Piaget White Gold Mechancial Watch Turquoise Dial Ref. 924N24

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Piaget - Piaget White Gold Diamond Opal Watch Ref. 9706 - The Keystone Watches

Piaget White Gold Diamond Opal Watch Ref. 9706

Piaget White Gold Diamond Opal Watch Ref. 9706

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Piaget - Piaget Yellow Gold Tigerseye Diamond Watch Ref. 9826 - The Keystone Watches

Piaget Yellow Gold Tigerseye Diamond Watch Ref. 9826

Piaget Yellow Gold Tigerseye Diamond Watch Ref. 9826

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Piaget - Piaget White Gold Diamond Watch Ref. 77280 - The Keystone Watches

Piaget White Gold Diamond Watch Ref. 77280

Piaget White Gold Diamond Watch Ref. 77280

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Piaget - Piaget White Gold Diamond Bracelet Watch Ref. 925B11 - The Keystone Watches

Piaget White Gold Diamond Bracelet Watch Ref. 925B11

Piaget White Gold Diamond Bracelet Watch Ref. 925B11

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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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