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Patek Philippe - Patek Philippe Yellow Gold Nautilus Diamond Watch with Original Box and Papers - The Keystone Watches

Patek Philippe Yellow Gold Nautilus Diamond Watch with Original Box and Papers

Patek Philippe Yellow Gold Nautilus Diamond Watch with Original Box and Papers

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Patek Philippe - Patek Philippe Steel Aquanaut Blue Watch Ref. 4960, Made for the Japanese Market - The Keystone Watches

Patek Philippe Steel Aquanaut Blue Watch Ref. 4960, Made for the Japanese Market

Patek Philippe Steel Aquanaut Blue Watch Ref. 4960, Made for the Japanese Market

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Patek Philippe - Patek Philippe Steel Tonneau-Shaped Watch Ref. 3579 - The Keystone Watches

Patek Philippe Steel Tonneau-Shaped Watch Ref. 3579

Patek Philippe Steel Tonneau-Shaped Watch Ref. 3579

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Patek Philippe - Patek Philippe White Gold Tonneau Watch from 1927 - The Keystone Watches

Patek Philippe White Gold Tonneau Watch from 1927

Patek Philippe White Gold Tonneau Watch from 1927

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Patek Philippe - Patek Philippe White Gold Ellipse Watch Ref. 3648, Retailed by Somazzi - The Keystone Watches

Patek Philippe White Gold Ellipse Watch Ref. 3648, Retailed by Somazzi

Patek Philippe White Gold Ellipse Watch Ref. 3648, Retailed by Somazzi

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Patek Philippe - Patek Philippe Yellow Gold Travel Time Watch Ref. 2597 - The Keystone Watches

Patek Philippe Yellow Gold Travel Time Watch Ref. 2597

Patek Philippe Yellow Gold Travel Time Watch Ref. 2597

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Watch Ref. 3940 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Watch Ref. 3940

Patek Philippe Platinum Perpetual Calendar Watch Ref. 3940

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

Patek Philippe Yellow Gold, Emerald Nautilus Diamond Watch Ref. 3800

Patek Philippe Yellow Gold, Emerald Nautilus Diamond Watch Ref. 3800

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Patek Philippe - Patek Philippe White Gold Automatic Watch Ref. 3525 - The Keystone Watches

Patek Philippe White Gold Automatic Watch Ref. 3525

Patek Philippe White Gold Automatic Watch Ref. 3525

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Patek Philippe - Patek Philippe Yellow Gold Diamond & Emerald Watch - The Keystone Watches

Patek Philippe Yellow Gold Diamond & Emerald Watch

Patek Philippe Yellow Gold Diamond & Emerald Watch

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

Patek Philippe Yellow Gold Nautilus Diamond Jumbo Watch Ref. 3700

Patek Philippe Yellow Gold Nautilus Diamond Jumbo Watch Ref. 3700

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Patek Philippe - Patek Philippe Yellow Gold Calatrava Watch Ref. 2526 - The Keystone Watches

Patek Philippe Yellow Gold Calatrava Watch Ref. 2526

Patek Philippe Yellow Gold Calatrava Watch Ref. 2526

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Patek Philippe - Patek Philippe Rose Gold Perpetual Calendar Split Seconds Watch Ref. 5004 - The Keystone Watches

Patek Philippe Rose Gold Perpetual Calendar Split Seconds Watch Ref. 5004

Patek Philippe Rose Gold Perpetual Calendar Split Seconds Watch Ref. 5004

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Patek Philippe Yellow Gold Perpetual Calendar Watch Ref. 3940

Patek Philippe Yellow Gold Perpetual Calendar Watch Ref. 3940

Patek Philippe Yellow Gold Perpetual Calendar Watch Ref. 3940

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Patek Philippe - Patek Philippe Rose Gold Perpetual Calendar Split Watch Ref. 5004 - The Keystone Watches

Patek Philippe Rose Gold Perpetual Calendar Split Watch Ref. 5004

Patek Philippe Rose Gold Perpetual Calendar Split Watch Ref. 5004

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

Patek Philippe Yellow Gold Nautilus Diamond Watch Ref. 3800

Patek Philippe Yellow Gold Nautilus Diamond Watch Ref. 3800

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

Patek Philippe Nautilus Watch Ref. 3800

Patek Philippe Nautilus Watch Ref. 3800

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Patek Philippe - Patek Philippe White Gold Baguette Diamond Watch with Original Warranty Paper - The Keystone Watches

Patek Philippe White Gold Baguette Diamond Watch with Original Warranty Paper

Patek Philippe White Gold Baguette Diamond Watch with Original Warranty Paper

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Patek Philippe - Patek Philippe White Gold Bracelet Watch Ref. 3544, with Original Paper - The Keystone Watches

Patek Philippe White Gold Bracelet Watch Ref. 3544, with Original Paper

Patek Philippe White Gold Bracelet Watch Ref. 3544, with Original Paper

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Patek Philippe - Patek Philippe White Gold Calatrava Watch Ref. 570 - The Keystone Watches

Patek Philippe White Gold Calatrava Watch Ref. 570

Patek Philippe White Gold Calatrava Watch Ref. 570

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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

Sold Out

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

Patek Philippe Yellow Aquanaut Jumbo Watch Ref. 5065

Patek Philippe Yellow Aquanaut Jumbo Watch Ref. 5065

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New Arrivals Preview
 
Audemars Piguet John Shaeffer Star Wheel Minute Repeater Ref. 25881OR (New Arrival)

Audemars Piguet John Shaeffer Star Wheel Minute Repeater Ref. 25881OR (New Arrival)

Audemars Piguet John Shaeffer Star Wheel Minute Repeater Ref. 25881OR (New Arrival)

$300,000 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
 
Audemars Piguet Royal Oak Dual Time Watch Ref. 25730 with Bright Yellow Dial (New Arrival)

Audemars Piguet Royal Oak Dual Time Watch Ref. 25730 with Bright Yellow Dial (New Arrival)

Audemars Piguet Royal Oak Dual Time Watch Ref. 25730 with Bright Yellow Dial (New Arrival)

$105,000 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 White Gold Rectangular Watch with Lapis Watch (New Arrival)

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
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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