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Cartier - Cartier Platinum Santos Watch, Circa 1920s - The Keystone Watches

Cartier Platinum Santos Watch, Circa 1920s

Cartier Platinum Santos Watch, Circa 1920s

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Piaget - Piaget White Gold Onyx Bracelet Watch - The Keystone Watches

Piaget White Gold Onyx Bracelet Watch

Piaget White Gold Onyx Bracelet Watch

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Piaget - Piaget White Gold Lapis Link Bracelet Watch - The Keystone Watches

Piaget White Gold Lapis Link Bracelet Watch

Piaget White Gold Lapis Link Bracelet Watch

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Cartier - Cartier Yellow Gold Tank Normale Watch, Famously Popularized by Jackie Onassis - The Keystone Watches

Cartier Yellow Gold Tank Normale Watch, Famously Popularized by Jackie Onassis

Cartier Yellow Gold Tank Normale Watch, Famously Popularized by Jackie Onassis

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Cartier - Cartier White Gold Tank Watch, Circa 1970s - The Keystone Watches

Cartier White Gold Tank Watch, Circa 1970s

Cartier White Gold Tank Watch, Circa 1970s

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Jaeger LeCoultre - Jaeger LeCoultre Rose Gold Grand Reverso Ultra Thin 1931 Watch - The Keystone Watches

Jaeger LeCoultre Rose Gold Grand Reverso Ultra Thin 1931 Watch

Jaeger LeCoultre Rose Gold Grand Reverso Ultra Thin 1931 Watch

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Cartier - Cartier Yellow Gold Tank Jumbo Automatic Watch - The Keystone Watches

Cartier Yellow Gold Tank Jumbo Automatic Watch

Cartier Yellow Gold Tank Jumbo Automatic Watch

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H. Moser & Cie - H. Moser & Cie Endeavor Concept Tourbillon Watch - The Keystone Watches

H. Moser & Cie Endeavor Concept Tourbillon Watch

H. Moser & Cie Endeavor Concept Tourbillon Watch

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Cartier - Cartier Platinum Tank Cintree Medium Watch, 1920s - The Keystone Watches

Cartier Platinum Tank Cintree Medium Watch, 1920s

Cartier Platinum Tank Cintree Medium Watch, 1920s

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Cartier - Cartier Platinum Asymmetrical Tank Watch, Piece Unique - The Keystone Watches

Cartier Platinum Asymmetrical Tank Watch, Piece Unique

Cartier Platinum Asymmetrical Tank Watch, Piece Unique

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Bulova - Bulova Two-Tone Royal Oak Automatic Watch - The Keystone Watches

Bulova Two-Tone Royal Oak Automatic Watch

Bulova Two-Tone Royal Oak Automatic Watch

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Piaget - Piaget White Gold Mystery Diamond Watch - The Keystone Watches

Piaget White Gold Mystery Diamond Watch

Piaget White Gold Mystery Diamond Watch

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Piaget - Piaget White Gold Diamond & Onyx Automatic Watch - The Keystone Watches

Piaget White Gold Diamond & Onyx Automatic Watch

Piaget White Gold Diamond & Onyx Automatic Watch

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Cartier - Cartier Yellow Gold Tortue Watch, Circa 1970s - The Keystone Watches

Cartier Yellow Gold Tortue Watch, Circa 1970s

Cartier Yellow Gold Tortue Watch, Circa 1970s

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IWC - IWC Ingenieur Automatic Watch Ref. 666 - The Keystone Watches

IWC Ingenieur Automatic Watch Ref. 666

IWC Ingenieur Automatic Watch Ref. 666

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Cartier - Cartier White Gold Tortue Monopoussoir Chronograph Watch Ref. 2396 - The Keystone Watches

Cartier White Gold Tortue Monopoussoir Chronograph Watch Ref. 2396

Cartier White Gold Tortue Monopoussoir Chronograph Watch Ref. 2396

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A. Lange & Sohne - A. Lange & Sohne White Gold Dual TIme Watch, Ref. 386.026 - The Keystone Watches

A. Lange & Sohne White Gold Dual TIme Watch, Ref. 386.026

A. Lange & Sohne White Gold Dual TIme Watch, Ref. 386.026

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Piaget - Piaget Yellow Gold Opal Diamond Watch - The Keystone Watches

Piaget Yellow Gold Opal Diamond Watch

Piaget Yellow Gold Opal Diamond Watch

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Piaget - Piaget White Gold Dual Time Watch - The Keystone Watches

Piaget White Gold Dual Time Watch

Piaget White Gold Dual Time Watch

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Cartier - Cartier Yellow Gold Santos Watch in New Old Stock Condition - The Keystone Watches

Cartier Yellow Gold Santos Watch in New Old Stock Condition

Cartier Yellow Gold Santos Watch in New Old Stock Condition

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Breguet - Breguet Yellow Gold Classique Watch, Retailed by Chaumet Paris - The Keystone Watches

Breguet Yellow Gold Classique Watch, Retailed by Chaumet Paris

Breguet Yellow Gold Classique Watch, Retailed by Chaumet Paris

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Laurent Ferrier - Laurent Ferrier Steel Grand Sport Tourbillon Watch, Limited to 12 Pieces - The Keystone Watches

Laurent Ferrier Steel Grand Sport Tourbillon Watch, Limited to 12 Pieces

Laurent Ferrier Steel Grand Sport Tourbillon Watch, Limited to 12 Pieces

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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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