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Patek Philippe - Patek Philippe White Gold Annual Calendar Watch Ref. 5205 - The Keystone Watches

Patek Philippe White Gold Annual Calendar Watch Ref. 5205

Patek Philippe White Gold Annual Calendar Watch Ref. 5205

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

Patek Philippe Yellow Gold Nautilus Watch Ref. 3800

Patek Philippe Yellow Gold Nautilus Watch Ref. 3800

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Patek Philippe - Patek Philippe Yellow Gold Annual Calendar Watch Ref. 5146 - The Keystone Watches

Patek Philippe Yellow Gold Annual Calendar Watch Ref. 5146

Patek Philippe Yellow Gold Annual Calendar Watch Ref. 5146

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Patek Philippe - Patek Philippe Nautilus Chronograph Black Watch Ref. 5980 - The Keystone Watches

Patek Philippe Nautilus Chronograph Black Watch Ref. 5980

Patek Philippe Nautilus Chronograph Black Watch Ref. 5980

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A. Lange & Sohne - A. Lange & Sohne Yellow Gold 1815 Watch Ref. 233.021 - The Keystone Watches

A. Lange & Sohne Yellow Gold 1815 Watch Ref. 233.021

A. Lange & Sohne Yellow Gold 1815 Watch Ref. 233.021

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Rolex - Rolex Submariner Watch Ref. 5513 - The Keystone Watches

Rolex Submariner Watch Ref. 5513

Rolex Submariner Watch Ref. 5513

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Patek Philippe - Patek Philippe Rose Gold Nautilus Watch Ref. 5711/1R - The Keystone Watches

Patek Philippe Rose Gold Nautilus Watch Ref. 5711/1R

Patek Philippe Rose Gold Nautilus Watch Ref. 5711/1R

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Rolex - Rolex Yellow Gold Day-Date Full Diamond Watch Ref. 118388 - The Keystone Watches

Rolex Yellow Gold Day-Date Full Diamond Watch Ref. 118388

Rolex Yellow Gold Day-Date Full Diamond Watch Ref. 118388

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Rolex - Rolex Steel Cosmograph Daytona Patrizzi Watch Ref. 16520 - The Keystone Watches

Rolex Steel Cosmograph Daytona Patrizzi Watch Ref. 16520

Rolex Steel Cosmograph Daytona Patrizzi Watch Ref. 16520

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Rolex - Rolex Explorer L-Series Watch Ref. 1016 with Paper - The Keystone Watches

Rolex Explorer L-Series Watch Ref. 1016 with Paper

Rolex Explorer L-Series Watch Ref. 1016 with Paper

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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

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Patek Philippe - Patek Philippe White Gold Annual Calendar Watch Ref. 5036 - The Keystone Watches

Patek Philippe White Gold Annual Calendar Watch Ref. 5036

Patek Philippe White Gold Annual Calendar Watch Ref. 5036

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Vacheron Constantin - Vacheron Constantin Platinum Historiques American 1921 Watch Ref. 82035 - The Keystone Watches

Vacheron Constantin Platinum Historiques American 1921 Watch Ref. 82035

Vacheron Constantin Platinum Historiques American 1921 Watch Ref. 82035

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FP Journe - F.P. Journe Rose Gold Octa Chronograph Watch - The Keystone Watches

F.P. Journe Rose Gold Octa Chronograph Watch

F.P. Journe Rose Gold Octa Chronograph Watch

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FP Journe - F.P. Journe Titanium Octa S Sport Watch - The Keystone Watches

F.P. Journe Titanium Octa S Sport Watch

F.P. Journe Titanium Octa S Sport Watch

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Audemars Piguet - Audemars Piguet Royal Oak Chronograph Watch Ref. 26331 - The Keystone Watches

Audemars Piguet Royal Oak Chronograph Watch Ref. 26331

Audemars Piguet Royal Oak Chronograph Watch Ref. 26331

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Patek Philippe - Patek Philippe Rose Gold Aquanaut Travel Time Watch Ref. 5164R - The Keystone Watches

Patek Philippe Rose Gold Aquanaut Travel Time Watch Ref. 5164R

Patek Philippe Rose Gold Aquanaut Travel Time Watch Ref. 5164R

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Tiffany & Co. - Tiffany & Co. Rose Gold New York 3-Hand Watch Ref. CT60 - The Keystone Watches

Tiffany & Co. Rose Gold New York 3-Hand Watch Ref. CT60

Tiffany & Co. Rose Gold New York 3-Hand Watch Ref. CT60

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Tag Heuer - Tag Heuer Monza Chronograph Watch Ref. CR2080.FC6375 - The Keystone Watches

Tag Heuer Monza Chronograph Watch Ref. CR2080.FC6375

Tag Heuer Monza Chronograph Watch Ref. CR2080.FC6375

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A. Lange & Sohne - A. Lange & Sohne White Gold Zeitwerk Striking Time Watch Ref. 145.029 - The Keystone Watches

A. Lange & Sohne White Gold Zeitwerk Striking Time Watch Ref. 145.029

A. Lange & Sohne White Gold Zeitwerk Striking Time Watch Ref. 145.029

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A. Lange & Sohne - A. Lange & Sohne Platinum Datograph Watch Ref. 403.035 - The Keystone Watches

A. Lange & Sohne Platinum Datograph Watch Ref. 403.035

A. Lange & Sohne Platinum Datograph Watch Ref. 403.035

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Omega - Omega Steel Speedmaster Professional Chronograph Moon watch - The Keystone Watches

Omega Steel Speedmaster Professional Chronograph Moon watch

Omega Steel Speedmaster Professional Chronograph Moon watch

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Breguet - Breguet White Gold Tradition Skeleton Watch Ref. 7057 - The Keystone Watches

Breguet White Gold Tradition Skeleton Watch Ref. 7057

Breguet White Gold Tradition Skeleton Watch Ref. 7057

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Laurent Ferrier - Laurent Ferrier Rose Gold Galet Square Watch - The Keystone Watches

Laurent Ferrier Rose Gold Galet Square Watch

Laurent Ferrier Rose Gold Galet Square Watch

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FP Journe - F.P Journe Tantalum Chronometre Bleu Watch - The Keystone Watches

F.P Journe Tantalum Chronometre Bleu Watch

F.P Journe Tantalum Chronometre Bleu Watch

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

Patek Philippe Yellow Gold Nautilus Watch Ref. 3800

Patek Philippe Yellow Gold Nautilus Watch Ref. 3800

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Rolex - Rolex Steel Sea-Dweller Watch Ref. 1665 - The Keystone Watches

Rolex Steel Sea-Dweller Watch Ref. 1665

Rolex Steel Sea-Dweller Watch Ref. 1665

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Patek Philippe - Patek Philippe Yellow Gold Chronograph Watch Ref. 130 - The Keystone Watches

Patek Philippe Yellow Gold Chronograph Watch Ref. 130

Patek Philippe Yellow Gold Chronograph Watch Ref. 130

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Patek Philippe - Patek Philippe Steel Embroidered Dial Watch Ref. 3474 - The Keystone Watches

Patek Philippe Steel Embroidered Dial Watch Ref. 3474

Patek Philippe Steel Embroidered Dial Watch Ref. 3474

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IWC - IWC Platinum Da Vinci Perpetual Calendar Split Chrono Watch Ref. 3751 - The Keystone Watches

IWC Platinum Da Vinci Perpetual Calendar Split Chrono Watch Ref. 3751

IWC Platinum Da Vinci Perpetual Calendar Split Chrono Watch Ref. 3751

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Patek Philippe - Patek Philippe Steel Nautilus Watch Ref. 3800/1A with Original Paper - The Keystone Watches

Patek Philippe Steel Nautilus Watch Ref. 3800/1A with Original Paper

Patek Philippe Steel Nautilus Watch Ref. 3800/1A with Original Paper

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Rolex - Rolex White Gold Daytona Zenith Watch Ref. 16519 - The Keystone Watches

Rolex White Gold Daytona Zenith Watch Ref. 16519

Rolex White Gold Daytona Zenith Watch Ref. 16519

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

Audemars Piguet White Gold Ultra-Thin Strap Watch

Audemars Piguet White Gold Ultra-Thin Strap Watch

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

Audemars Piguet White Gold Ultra-Thin Strap Watch

Audemars Piguet White Gold Ultra-Thin Strap Watch

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Audemars Piguet - Audemars Piguet Steel Cushion Shaped Strap Watch with Original Box & Papers - The Keystone Watches

Audemars Piguet Steel Cushion Shaped Strap Watch with Original Box & Papers

Audemars Piguet Steel Cushion Shaped Strap Watch with Original Box & Papers

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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
 
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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