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Patek Philippe - Patek Philippe Stainless Steel Pilot Watch Ref. 5522 - The Keystone Watches

Patek Philippe Stainless Steel Pilot Watch Ref. 5522

Patek Philippe Stainless Steel Pilot Watch Ref. 5522

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Patek Philippe - Patek Philippe Platinum World Time Cloisonne Watch Ref. 5131 - The Keystone Watches

Patek Philippe Platinum World Time Cloisonne Watch Ref. 5131

Patek Philippe Platinum World Time Cloisonne Watch Ref. 5131

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Patek Philippe - Patek Philippe Nautilus Jumbo Watch Ref. 5711 - The Keystone Watches

Patek Philippe Nautilus Jumbo Watch Ref. 5711

Patek Philippe Nautilus Jumbo Watch Ref. 5711

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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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A. Lange & Sohne - A. Lange & Sohne Platinum Langematik Perpetual Watch Ref. 310.225 - The Keystone Watches

A. Lange & Sohne Platinum Langematik Perpetual Watch Ref. 310.225

A. Lange & Sohne Platinum Langematik Perpetual Watch Ref. 310.225

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Rolex - Rolex Cosmograph Daytona Diamond & Sapphire Watch Ref. 116599 - The Keystone Watches

Rolex Cosmograph Daytona Diamond & Sapphire Watch Ref. 116599

Rolex Cosmograph Daytona Diamond & Sapphire Watch Ref. 116599

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

Patek Philippe Rose Gold Nautilus Watch Ref. 5711

Patek Philippe Rose Gold Nautilus Watch Ref. 5711

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Patek Philippe - Patek Philippe White Gold Perpetual Calendar Watch Ref. 5040 - The Keystone Watches

Patek Philippe White Gold Perpetual Calendar Watch Ref. 5040

Patek Philippe White Gold Perpetual Calendar Watch Ref. 5040

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Patek Philippe - Patek Philippe Platinum Perpetual Diamond Chrono Watch Ref. 5271 - The Keystone Watches

Patek Philippe Platinum Perpetual Diamond Chrono Watch Ref. 5271

Patek Philippe Platinum Perpetual Diamond Chrono Watch Ref. 5271

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Patek Philippe - Patek Philippe Rose Gold Perpetual Calendar Watch Ref. 5040 Retailed by Tiffany & Co. - The Keystone Watches

Patek Philippe Rose Gold Perpetual Calendar Watch Ref. 5040 Retailed by Tiffany & Co.

Patek Philippe Rose Gold Perpetual Calendar Watch Ref. 5040 Retailed by Tiffany & Co.

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Rolex - Rolex Yellow Gold Day-Date Watch Ref. 118208 - The Keystone Watches

Rolex Yellow Gold Day-Date Watch Ref. 118208

Rolex Yellow Gold Day-Date Watch Ref. 118208

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Tudor - Tudor Chrono-Time Tiger Watch Ref. 79280 with Original Warranty Paper - The Keystone Watches

Tudor Chrono-Time Tiger Watch Ref. 79280 with Original Warranty Paper

Tudor Chrono-Time Tiger Watch Ref. 79280 with Original Warranty Paper

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Patek Philippe - Patek Philippe White Gold Annual Calendar Regulator Watch Ref. 5235 - The Keystone Watches

Patek Philippe White Gold Annual Calendar Regulator Watch Ref. 5235

Patek Philippe White Gold Annual Calendar Regulator Watch Ref. 5235

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Patek Philippe - Patek Philippe White Gold Nautilus Baguette Diamond Watch Ref. 5724 - The Keystone Watches

Patek Philippe White Gold Nautilus Baguette Diamond Watch Ref. 5724

Patek Philippe White Gold Nautilus Baguette Diamond Watch Ref. 5724

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Patek Philippe - Patek Philippe Rose Gold Chronograph Baguette Watch Ref. 5961 - The Keystone Watches

Patek Philippe Rose Gold Chronograph Baguette Watch Ref. 5961

Patek Philippe Rose Gold Chronograph Baguette Watch Ref. 5961

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

Patek Philippe White Gold Calatrava Watch Ref. 5119

Patek Philippe White Gold Calatrava Watch Ref. 5119

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Omega - Omega Seamaster Aqua Terra Chronometer Tech Watch - The Keystone Watches

Omega Seamaster Aqua Terra Chronometer Tech Watch

Omega Seamaster Aqua Terra Chronometer Tech Watch

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Omega - Omega Seamaster Aqua Terra 150m Co-Axial Watch - The Keystone Watches

Omega Seamaster Aqua Terra 150m Co-Axial Watch

Omega Seamaster Aqua Terra 150m Co-Axial Watch

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Omega - Omega Seamaster Planet Ocean Co-Axial Watch Ref. 23230462101003 - The Keystone Watches

Omega Seamaster Planet Ocean Co-Axial Watch Ref. 23230462101003

Omega Seamaster Planet Ocean Co-Axial Watch Ref. 23230462101003

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Omega - Omega Seamaster Planet Ocean Watch Ref. 232.30.46.21.01.002 - The Keystone Watches

Omega Seamaster Planet Ocean Watch Ref. 232.30.46.21.01.002

Omega Seamaster Planet Ocean Watch Ref. 232.30.46.21.01.002

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Omega - Omega Seamaster Planet Ocean Watch Ref. 232.30.42.21.01.003 - The Keystone Watches

Omega Seamaster Planet Ocean Watch Ref. 232.30.42.21.01.003

Omega Seamaster Planet Ocean Watch Ref. 232.30.42.21.01.003

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Omega - Omega Planet Ocean Chronograph Orange Watch Ref. 23230465101002 - The Keystone Watches

Omega Planet Ocean Chronograph Orange Watch Ref. 23230465101002

Omega Planet Ocean Chronograph Orange Watch Ref. 23230465101002

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New Arrivals Preview
 
Rolex Yellow Gold Queen Midas Watch Ref. 4314 with Lapis and Diamond Dial (New Arrival)

Rolex Yellow Gold Queen Midas Watch Ref. 4314 with Lapis and Diamond Dial (New Arrival)

Rolex Yellow Gold Queen Midas Watch Ref. 4314 with Lapis and Diamond Dial (New Arrival)

$38,000 USD
 
Patek Philippe White Gold Baguette Diamond Watch Ref. 3540 (New Arrival)

Patek Philippe White Gold Baguette Diamond Watch Ref. 3540 (New Arrival)

Patek Philippe White Gold Baguette Diamond Watch Ref. 3540 (New Arrival)

$30,000 USD
 
Vacheron Constantin Yellow Gold Chronograph Watch Ref. 4178 with Important Provenance (New Arrival)

Vacheron Constantin Yellow Gold Chronograph Watch Ref. 4178 with Important Provenance (New Arrival)

Vacheron Constantin Yellow Gold Chronograph Watch Ref. 4178 with Important Provenance (New Arrival)

$60,000 USD
 
Breguet Cushion Shaped Diver 200m Watch (New Arrival)

Breguet Cushion Shaped Diver 200m Watch (New Arrival)

Breguet Cushion Shaped Diver 200m Watch (New Arrival)

$58,000 USD
 
Audemars Piguet - Audemars Piguet White Gold Rectangular Watch with Lapis Watch (New Arrival) - The Keystone Watches

Audemars Piguet White Gold Rectangular Watch with Lapis Watch (New Arrival)

Audemars Piguet White Gold Rectangular Watch with Lapis Watch (New Arrival)

$18,000 USD
 
Cartier Yellow Gold Tank Normale Bracelet Watch  Ref. 78092 (New Arrival)

Cartier Yellow Gold Tank Normale Bracelet Watch Ref. 78092 (New Arrival)

Cartier Yellow Gold Tank Normale Bracelet Watch Ref. 78092 (New Arrival)

$36,000 USD
 
Cartier - Cartier Yellow Gold Tank Reverso (New Arrival) - The Keystone Watches

Cartier Yellow Gold Tank Reverso (New Arrival)

Cartier Yellow Gold Tank Reverso (New Arrival)

$34,500 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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