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Audemars Piguet - Audemars Piguet Yellow Gold Royal Oak Watch Ref. 4100 - The Keystone Watches

Audemars Piguet Yellow Gold Royal Oak Watch Ref. 4100

Audemars Piguet Yellow Gold Royal Oak Watch Ref. 4100

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Patek Philippe - Patek Philippe Two-Tone Nautilus Watch Ref. 3800 - The Keystone Watches

Patek Philippe Two-Tone Nautilus Watch Ref. 3800

Patek Philippe Two-Tone Nautilus Watch Ref. 3800

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Rolex - Rolex Yellow Gold Day-Date Watch Ref. 1803 - The Keystone Watches

Rolex Yellow Gold Day-Date Watch Ref. 1803

Rolex Yellow Gold Day-Date Watch Ref. 1803

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

Audemars Piguet White Gold Strap Watch

Audemars Piguet White Gold Strap Watch

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Patek Philippe - Patek Philippe Rose Gold Calatrava Watch Ref. 3802 - The Keystone Watches

Patek Philippe Rose Gold Calatrava Watch Ref. 3802

Patek Philippe Rose Gold Calatrava Watch Ref. 3802

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Patek Philippe - Patek Philippe White Gold Perpetual Ref. 5160 - The Keystone Watches

Patek Philippe White Gold Perpetual Ref. 5160

Patek Philippe White Gold Perpetual Ref. 5160

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Patek Philippe - Patek Philippe Yellow Gold Nautilus Watch Ref. 3700 - The Keystone Watches

Patek Philippe Yellow Gold Nautilus Watch Ref. 3700

Patek Philippe Yellow Gold Nautilus Watch Ref. 3700

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Rolex - Rolex Oyster-Perpetual Explorer Watch Ref. 5500 - The Keystone Watches

Rolex Oyster-Perpetual Explorer Watch Ref. 5500

Rolex Oyster-Perpetual Explorer Watch Ref. 5500

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Patek Philippe - Patek Philippe Two-Tone Nautilus Watch Ref. 3800 - The Keystone Watches

Patek Philippe Two-Tone Nautilus Watch Ref. 3800

Patek Philippe Two-Tone Nautilus Watch Ref. 3800

Sold Out

 
Patek Philippe - Patek Philippe White Gold Nautilus Watch Ref. 3900 - The Keystone Watches

Patek Philippe White Gold Nautilus Watch Ref. 3900

Patek Philippe White Gold Nautilus Watch Ref. 3900

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Patek Philippe - Patek Philippe Yellow Gold Nautilus Diamond & Ruby Watch Ref. 3800 - The Keystone Watches

Patek Philippe Yellow Gold Nautilus Diamond & Ruby Watch Ref. 3800

Patek Philippe Yellow Gold Nautilus Diamond & Ruby Watch Ref. 3800

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Patek Philippe - Patek Philippe White Gold Nautilus Watch Ref. 5719 - The Keystone Watches

Patek Philippe White Gold Nautilus Watch Ref. 5719

Patek Philippe White Gold Nautilus Watch Ref. 5719

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Rolex - Rolex Yellow Gold Cosmograph Daytona Watch Ref. 6263 - The Keystone Watches

Rolex Yellow Gold Cosmograph Daytona Watch Ref. 6263

Rolex Yellow Gold Cosmograph Daytona Watch Ref. 6263

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Rolex - Rolex White Gold Day-Date Watch Ref. 1803 - The Keystone Watches

Rolex White Gold Day-Date Watch Ref. 1803

Rolex White Gold Day-Date Watch Ref. 1803

Sold Out

 
Vacheron Constantin - Vacheron Constantin Yellow Gold Baguette Diamond Watch - The Keystone Watches

Vacheron Constantin Yellow Gold Baguette Diamond Watch

Vacheron Constantin Yellow Gold Baguette Diamond Watch

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Patek Philippe - Patek Philippe Aquanaut Jumbo Watch Ref. 5065 - The Keystone Watches

Patek Philippe Aquanaut Jumbo Watch Ref. 5065

Patek Philippe Aquanaut Jumbo Watch Ref. 5065

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Rolex - Rolex Rose Gold Yacht-Master Rainbow Watch Ref. 116695 - The Keystone Watches

Rolex Rose Gold Yacht-Master Rainbow Watch Ref. 116695

Rolex Rose Gold Yacht-Master Rainbow Watch Ref. 116695

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Rolex - Rolex Cosmograph Daytona Ceramic Watch Ref. 116500 - The Keystone Watches

Rolex Cosmograph Daytona Ceramic Watch Ref. 116500

Rolex Cosmograph Daytona Ceramic Watch Ref. 116500

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Rolex - Rolex Day-Date Watch Ref. 18078 with Bark Finish and Box and Paper - The Keystone Watches

Rolex Day-Date Watch Ref. 18078 with Bark Finish and Box and Paper

Rolex Day-Date Watch Ref. 18078 with Bark Finish and Box and Paper

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Audemars Piguet - Audemars Piguet Rose Gold Royal Oak Diamond Watch Ref. 15402 - The Keystone Watches

Audemars Piguet Rose Gold Royal Oak Diamond Watch Ref. 15402

Audemars Piguet Rose Gold Royal Oak Diamond Watch Ref. 15402

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Rolex - Rolex Yellow Gold GMT-Master II Sapphire Ruby Diamond Watch Ref. 116758 - The Keystone Watches

Rolex Yellow Gold GMT-Master II Sapphire Ruby Diamond Watch Ref. 116758

Rolex Yellow Gold GMT-Master II Sapphire Ruby Diamond Watch Ref. 116758

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Audemars Piguet - Audemars Piguet Yellow Gold Calendar Strap Watch - The Keystone Watches

Audemars Piguet Yellow Gold Calendar Strap Watch

Audemars Piguet Yellow Gold Calendar Strap Watch

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Patek Philippe - Patek Philippe White Gold Calatrava Watch Ref. 3796 - The Keystone Watches

Patek Philippe White Gold Calatrava Watch Ref. 3796

Patek Philippe White Gold Calatrava Watch Ref. 3796

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Audemars Piguet - Audemars Piguet Rose Gold Royal Oak Nick Faldo Edition Watch - The Keystone Watches

Audemars Piguet Rose Gold Royal Oak Nick Faldo Edition Watch

Audemars Piguet Rose Gold Royal Oak Nick Faldo Edition Watch

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Audemars Piguet - Audemars Piguet White Royal Gold Royal Oak Emerald & Diamond Watch - The Keystone Watches

Audemars Piguet White Royal Gold Royal Oak Emerald & Diamond Watch

Audemars Piguet White Royal Gold Royal Oak Emerald & Diamond Watch

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Rolex - Rolex Rose Gold Cellini Strap Watch Ref. 50515 - The Keystone Watches

Rolex Rose Gold Cellini Strap Watch Ref. 50515

Rolex Rose Gold Cellini Strap Watch Ref. 50515

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Patek Philippe - Patek Philippe Aquanaut Automatic Watch Ref. 5066 - The Keystone Watches

Patek Philippe Aquanaut Automatic Watch Ref. 5066

Patek Philippe Aquanaut Automatic Watch Ref. 5066

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Rolex - Rolex Yellow Gold Day-Date Watch Ref. 18038 - The Keystone Watches

Rolex Yellow Gold Day-Date Watch Ref. 18038

Rolex Yellow Gold Day-Date Watch Ref. 18038

Sold Out

 
Vacheron Constantin - Vacheron Constantin Platinum Perpetual Calendar Chrono Watch Ref. 49005 - The Keystone Watches

Vacheron Constantin Platinum Perpetual Calendar Chrono Watch Ref. 49005

Vacheron Constantin Platinum Perpetual Calendar Chrono Watch Ref. 49005

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Rolex - Rolex Yellow Gold Cosmograph Daytona Zenith Watch Ref. 16528 - The Keystone Watches

Rolex Yellow Gold Cosmograph Daytona Zenith Watch Ref. 16528

Rolex Yellow Gold Cosmograph Daytona Zenith Watch Ref. 16528

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Rolex - Rolex Cellini Yellow Gold with Sapphire Bezen and Diamond Dial Ref. 5019/8 - The Keystone Watches

Rolex Cellini Yellow Gold with Sapphire Bezen and Diamond Dial Ref. 5019/8

Rolex Cellini Yellow Gold with Sapphire Bezen and Diamond Dial Ref. 5019/8

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Rolex - Rolex Day-Date White Gold with Baguette Bezel and Pave Dial Ref. 218399BR - The Keystone Watches

Rolex Day-Date White Gold with Baguette Bezel and Pave Dial Ref. 218399BR

Rolex Day-Date White Gold with Baguette Bezel and Pave Dial Ref. 218399BR

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Patek Philippe - Patek Philippe Rose Gold Calatrava Watch Ref. 5119 - The Keystone Watches

Patek Philippe Rose Gold Calatrava Watch Ref. 5119

Patek Philippe Rose Gold Calatrava Watch Ref. 5119

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Patek Philippe - Patek Philippe Yellow Gold Nautilus Watch Ref. 3800 with Original Box and Papers - The Keystone Watches

Patek Philippe Yellow Gold Nautilus Watch Ref. 3800 with Original Box and Papers

Patek Philippe Yellow Gold Nautilus Watch Ref. 3800 with Original Box and Papers

Sold Out

 
Cartier - Cartier White Gold Ballon Bleu Diamond Watch - The Keystone Watches

Cartier White Gold Ballon Bleu Diamond Watch

Cartier White Gold Ballon Bleu Diamond Watch

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

Rolex Yellow Gold Day-Date Watch Ref. 18238 in New Old Stock Condition

Rolex Yellow Gold Day-Date Watch Ref. 18238 in New Old Stock Condition

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New Arrivals Preview
 
Gerald Genta Fantasy Retro M.10 MOP Mickey Mouse for Hong Kong Disney Watch (New Arrival)

Gerald Genta Fantasy Retro M.10 MOP Mickey Mouse for Hong Kong Disney Watch (New Arrival)

Gerald Genta Fantasy Retro M.10 MOP Mickey Mouse for Hong Kong Disney Watch (New Arrival)

$23,750 USD
 
Vacheron Constantin - Vacheron Constantin Yellow Gold Grand Complication Pocket Watch (NEW ARRIVAL) - The Keystone Watches

Vacheron Constantin Yellow Gold Grand Complication Pocket Watch (NEW ARRIVAL)

Vacheron Constantin Yellow Gold Grand Complication Pocket Watch (NEW ARRIVAL)

$155,000 USD
 
Cartier Yellow Gold Tank Obus Ref. 1630 with Black Enamel (New Arrival)

Cartier Yellow Gold Tank Obus Ref. 1630 with Black Enamel (New Arrival)

Cartier Yellow Gold Tank Obus Ref. 1630 with Black Enamel (New Arrival)

$14,500 USD
 
Patek Philippe Steel Automatic UFO Ref. 3580 (New Arrival)

Patek Philippe Steel Automatic UFO Ref. 3580 (New Arrival)

Patek Philippe Steel Automatic UFO Ref. 3580 (New Arrival)

$13,250 USD
 
Patek Philiipe Rose Gold Calatrava Watch Ref. 3796 (New Arrival)

Patek Philiipe Rose Gold Calatrava Watch Ref. 3796 (New Arrival)

Patek Philiipe Rose Gold Calatrava Watch Ref. 3796 (New Arrival)

$16,500 USD
 

Piaget White Gold Altiplano Ref. 90122 with Diamonds and Sapphires (New Arrival)

Piaget White Gold Altiplano Ref. 90122 with Diamonds and Sapphires (New Arrival)

$17,750 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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