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Patek Philippe Yellow Gold Jumbo Automatic Golden Circle Ref. 3585 in New Old Stock Condition

Patek Philippe Yellow Gold Jumbo Automatic Golden Circle Ref. 3585 in New Old Stock Condition

Patek Philippe Yellow Gold Jumbo Automatic Golden Circle Ref. 3585 in New Old Stock Condition

Sold Out

 
Patek Philippe Rose Gold Calatrava Watch Ref. 2449

Patek Philippe Rose Gold Calatrava Watch Ref. 2449

Patek Philippe Rose Gold Calatrava Watch Ref. 2449

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

Patek Philippe Rose Gold Perpetual Calendar Watch Ref. 5040

Patek Philippe Rose Gold Perpetual Calendar Watch Ref. 5040

Sold Out

 
Patek Philiipe Yellow Gold Vintage Ladies Jewelry Watch

Patek Philiipe Yellow Gold Vintage Ladies Jewelry Watch

Patek Philiipe Yellow Gold Vintage Ladies Jewelry Watch

$8,500 USD
 
Patek Philippe - Patek Philippe Yellow Gold Nautilus Diamond Watch Ref. 4700 - The Keystone Watches

Patek Philippe Yellow Gold Nautilus Diamond Watch Ref. 4700

Patek Philippe Yellow Gold Nautilus Diamond Watch Ref. 4700

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Patek Philippe - Patek Philippe White Gold Ellipse Ref. 3584 - The Keystone Watches

Patek Philippe White Gold Ellipse Ref. 3584

Patek Philippe White Gold Ellipse Ref. 3584

$10,800 USD
 
Patek Philippe Yellow Gold Cover Watch Ref. 4955

Patek Philippe Yellow Gold Cover Watch Ref. 4955

Patek Philippe Yellow Gold Cover Watch Ref. 4955

$36,000 USD
 
Patek Philippe - Patek Philippe Yellow Gold Ellipse Ref. 3848 (New Arrival) - The Keystone Watches

Patek Philippe Yellow Gold Ellipse Ref. 3848 (New Arrival)

Patek Philippe Yellow Gold Ellipse Ref. 3848 (New Arrival)

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Patek Philippe Steel Backwind Ellipse Watch Ref. 3580 with Blue Dial

Patek Philippe Steel Backwind Ellipse Watch Ref. 3580 with Blue Dial

Patek Philippe Steel Backwind Ellipse Watch Ref. 3580 with Blue Dial

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Patek Philippe - Patek Philippe Yellow Gold Tigerseye Watch Ref. 4282 - The Keystone Watches

Patek Philippe Yellow Gold Tigerseye Watch Ref. 4282

Patek Philippe Yellow Gold Tigerseye Watch Ref. 4282

Sold Out

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

Patek Philippe Yellow Gold Nautilus Ref. 3800

Patek Philippe Yellow Gold Nautilus Ref. 3800

Sold Out

 
Patek Philippe White Gold Ellipse Ref. 4226 with Brown Sunburst Dial

Patek Philippe White Gold Ellipse Ref. 4226 with Brown Sunburst Dial

Patek Philippe White Gold Ellipse Ref. 4226 with Brown Sunburst Dial

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Patek Phillipe Yellow Gold Gondolo Ref. 5024

Patek Phillipe Yellow Gold Gondolo Ref. 5024

Patek Phillipe Yellow Gold Gondolo Ref. 5024

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Patek Philippe - Patek Philippe Yellow Gold Calatrava Ref. 3893 in Fantastic Original Condition - The Keystone Watches

Patek Philippe Yellow Gold Calatrava Ref. 3893 in Fantastic Original Condition

Patek Philippe Yellow Gold Calatrava Ref. 3893 in Fantastic Original Condition

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Patek Philippe Yellow Gold Calatrava Ref. 3919

Patek Philippe Yellow Gold Calatrava Ref. 3919

Patek Philippe Yellow Gold Calatrava Ref. 3919

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Patek Philippe - Patek Calatrava Yellow Gold Calatrava Ref. 3919 with Gubelin Dial - The Keystone Watches

Patek Calatrava Yellow Gold Calatrava Ref. 3919 with Gubelin Dial

Patek Calatrava Yellow Gold Calatrava Ref. 3919 with Gubelin Dial

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Patek Philippe Yellow Gold Chronograph Watch Ref. 1579

Patek Philippe Yellow Gold Chronograph Watch Ref. 1579

Patek Philippe Yellow Gold Chronograph Watch Ref. 1579

$110,000 USD
 
Patek Philippe White Gold Square Watch Ref. 3555

Patek Philippe White Gold Square Watch Ref. 3555

Patek Philippe White Gold Square Watch Ref. 3555

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Patek Philippe - Patek Philippe White Gold Gondolo Trapeze Ref. 5489G - The Keystone Watches

Patek Philippe White Gold Gondolo Trapeze Ref. 5489G

Patek Philippe White Gold Gondolo Trapeze Ref. 5489G

Sold Out

 
Patek Philippe - Patek Philippe Yellow Gold Nautilus Ref. 4700 - The Keystone Watches

Patek Philippe Yellow Gold Nautilus Ref. 4700

Patek Philippe Yellow Gold Nautilus Ref. 4700

$50,000 USD
 
Patek Philippe Yellow Gold Calatrava Watch Ref. 2593, Retailed by Tiffany & Co.

Patek Philippe Yellow Gold Calatrava Watch Ref. 2593, Retailed by Tiffany & Co.

Patek Philippe Yellow Gold Calatrava Watch Ref. 2593, Retailed by Tiffany & Co.

$12,000 USD
 
Patek Philippe - Patek Philippe White Gold Vintage Ladies Watch Ref. 4217 - The Keystone Watches

Patek Philippe White Gold Vintage Ladies Watch Ref. 4217

Patek Philippe White Gold Vintage Ladies Watch Ref. 4217

Sold Out

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New Arrivals Preview
 
Cartier Tank Coussin Bamboo Ref. 78102 (New Arrival)

Cartier Tank Coussin Bamboo Ref. 78102 (New Arrival)

Cartier Tank Coussin Bamboo Ref. 78102 (New Arrival)

$125,000 USD
 
Cartier Tank Allongee Elongated, Circa 1940 (New Arrival)

Cartier Tank Allongee Elongated, Circa 1940 (New Arrival)

Cartier Tank Allongee Elongated, Circa 1940 (New Arrival)

$62,000 USD
 
Patek Philippe White Gold Rectangular Art Deco Watch (New Arrival)

Patek Philippe White Gold Rectangular Art Deco Watch (New Arrival)

Patek Philippe White Gold Rectangular Art Deco Watch (New Arrival)

$55,000 USD
 
Cartier Platinum Tank Watch Ref. 16111 (New Arrival)

Cartier Platinum Tank Watch Ref. 16111 (New Arrival)

Cartier Platinum Tank Watch Ref. 16111 (New Arrival)

$21,000 USD
 
Patek Philippe Yellow Gold Chronograph Watch Ref. 591, Incredible Original Condition (New Arrival)

Patek Philippe Yellow Gold Chronograph Watch Ref. 591, Incredible Original Condition (New Arrival)

Patek Philippe Yellow Gold Chronograph Watch Ref. 591, Incredible Original Condition (New Arrival)

$175,000 USD
 
Patek Philippe Yellow Gold Enamel Dial Calatrava Watch Ref. 2526 (New Arrival)

Patek Philippe Yellow Gold Enamel Dial Calatrava Watch Ref. 2526 (New Arrival)

Patek Philippe Yellow Gold Enamel Dial Calatrava Watch Ref. 2526 (New Arrival)

$70,000 USD
 
Breguet Platinum Skeleton Tourbillon Watch Ref. 3355 (New Arrival)

Breguet Platinum Skeleton Tourbillon Watch Ref. 3355 (New Arrival)

Breguet Platinum Skeleton Tourbillon Watch Ref. 3355 (New Arrival)

$67,500 USD
Shop all New Arrivals Preview

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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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