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Patek Philippe - Patek Philippe White Gold Lapis Watch Ref. 3578 - The Keystone Watches

Patek Philippe White Gold Lapis Watch Ref. 3578

Patek Philippe White Gold Lapis Watch Ref. 3578

Sold Out

 
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

Sold Out

 

Patek Philippe White Gold Mechanical Watch Ref. 3566

Patek Philippe White Gold Mechanical Watch Ref. 3566

Sold Out

 
Patek Philippe - Patek Philippe White Gold Perpetual Calendar Ref. 5270 - The Keystone Watches

Patek Philippe White Gold Perpetual Calendar Ref. 5270

Patek Philippe White Gold Perpetual Calendar Ref. 5270

Sold Out

 
Patek Philippe - Patek Philippe White Gold Bracelet Watch Ref. 3598 - The Keystone Watches

Patek Philippe White Gold Bracelet Watch Ref. 3598

Patek Philippe White Gold Bracelet Watch Ref. 3598

Sold Out

 
Patek Philippe - Patek Philippe White Gold Hobnail Ellipse Ref. 3987 - The Keystone Watches

Patek Philippe White Gold Hobnail Ellipse Ref. 3987

Patek Philippe White Gold Hobnail Ellipse Ref. 3987

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Patek Philippe White Gold Calatrava Watch Ref. 3445 on Bracelet

Patek Philippe White Gold Calatrava Watch Ref. 3445 on Bracelet

Sold Out

 

Patek Philippe Steel Aquanaut Ref. 5066

Patek Philippe Steel Aquanaut Ref. 5066

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Patek Philippe - Patek Philippe Yellow Gold Calatrava Ref. 2545, Gifted by the Arab American Oil Company (ARAMCO) - The Keystone Watches

Patek Philippe Yellow Gold Calatrava Ref. 2545, Gifted by the Arab American Oil Company (ARAMCO)

Patek Philippe Yellow Gold Calatrava Ref. 2545, Gifted by the Arab American Oil Company (ARAMCO)

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Patek Philippe - Patek Philippe Rose Gold Annual Calendar Chronograph Ref. 5961R with Factory Diamonds - The Keystone Watches

Patek Philippe Rose Gold Annual Calendar Chronograph Ref. 5961R with Factory Diamonds

Patek Philippe Rose Gold Annual Calendar Chronograph Ref. 5961R with Factory Diamonds

Sold Out

 
Patek Philippe - Patek Philippe White Gold Calatrava Ref. 3601 - The Keystone Watches

Patek Philippe White Gold Calatrava Ref. 3601

Patek Philippe White Gold Calatrava Ref. 3601

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Patek Philippe - Patek Philippe Yellow Gold Ref. 3604 Retailed by Gubelin - The Keystone Watches

Patek Philippe Yellow Gold Ref. 3604 Retailed by Gubelin

Patek Philippe Yellow Gold Ref. 3604 Retailed by Gubelin

Sold Out

 
Patek Philippe - Patek Philippe Rose Gold Annual Calendar Chronograph Ref. 5960 - The Keystone Watches

Patek Philippe Rose Gold Annual Calendar Chronograph Ref. 5960

Patek Philippe Rose Gold Annual Calendar Chronograph Ref. 5960

Sold Out

 
Patek Philippe - Patek Philippe Yellow Gold Calatrava Ref. 2428 - The Keystone Watches

Patek Philippe Yellow Gold Calatrava Ref. 2428

Patek Philippe Yellow Gold Calatrava Ref. 2428

Sold Out

 
Patek Philippe - Patek Philippe White Gold Perpetual Calendar Watch Ref. 5136 - The Keystone Watches

Patek Philippe White Gold Perpetual Calendar Watch Ref. 5136

Patek Philippe White Gold Perpetual Calendar Watch Ref. 5136

Sold Out

 
Patek Philippe - Patek Philippe White Gold Ellipse Ref. 3788 - The Keystone Watches

Patek Philippe White Gold Ellipse Ref. 3788

Patek Philippe White Gold Ellipse Ref. 3788

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Patek Philippe - Patek Philippe White Gold Square Watch Ref. 3404 - The Keystone Watches

Patek Philippe White Gold Square Watch Ref. 3404

Patek Philippe White Gold Square Watch Ref. 3404

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Patek Philippe - Patek Philippe Yellow Gold Perpetual Calendar Ref. 5039 - The Keystone Watches

Patek Philippe Yellow Gold Perpetual Calendar Ref. 5039

Patek Philippe Yellow Gold Perpetual Calendar Ref. 5039

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Patek Philippe Platinum Grand Complication Perpetual Calendar Minute Repeater Watch Ref. 5016

Patek Philippe Platinum Grand Complication Perpetual Calendar Minute Repeater Watch Ref. 5016

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Patek Philippe - Patek Philippe Yellow Gold Calatrava Ref. 3514 - The Keystone Watches

Patek Philippe Yellow Gold Calatrava Ref. 3514

Patek Philippe Yellow Gold Calatrava Ref. 3514

Sold Out

 
Patek Philippe - Patek Philippe Yellow Gold Nautilus Ref. 3800 Retailed by Gubelin - The Keystone Watches

Patek Philippe Yellow Gold Nautilus Ref. 3800 Retailed by Gubelin

Patek Philippe Yellow Gold Nautilus Ref. 3800 Retailed by Gubelin

Sold Out

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

Patek Philippe White Gold Calatrava Ref. 570

Patek Philippe White Gold Calatrava Ref. 570

Sold Out

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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 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
 
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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