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Patek Philippe Platinum Square Watch Ref. 2488

Patek Philippe Platinum Square Watch Ref. 2488

Patek Philippe Platinum Square Watch Ref. 2488

Sold Out

 
Patek Philippe - Patek Philippe Yellow Gold Nautilus Ref. 3700 with Diamond Bezel - The Keystone Watches

Patek Philippe Yellow Gold Nautilus Ref. 3700 with Diamond Bezel

Patek Philippe Yellow Gold Nautilus Ref. 3700 with Diamond Bezel

$285,000 USD
 

Patek Philippe Rose Gold Calatrava Ref. 5000

Patek Philippe Rose Gold Calatrava Ref. 5000

Sold Out

 
Patek Philippe White Gold Annual Calendar Regulator Watch Ref. 5235

Patek Philippe White Gold Annual Calendar Regulator Watch Ref. 5235

Patek Philippe White Gold Annual Calendar Regulator Watch Ref. 5235

Sold Out

 
Patek Philippe - Patek Philippe White Gold Ellipse Ref. 4716 with Factory Diamonds Bracelet - The Keystone Watches

Patek Philippe White Gold Ellipse Ref. 4716 with Factory Diamonds Bracelet

Patek Philippe White Gold Ellipse Ref. 4716 with Factory Diamonds Bracelet

Sold Out

 
Patek Philippe - Patek Philippe Platinum Perpetual Calendar Minute Repeater Watch Ref. 5374 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Minute Repeater Watch Ref. 5374

Patek Philippe Platinum Perpetual Calendar Minute Repeater Watch Ref. 5374

$875,000 USD
 
Patek Philippe - Patek Philippe Platinum Grand Complications Minute Repeater Watch Ref. 5207 - The Keystone Watches

Patek Philippe Platinum Grand Complications Minute Repeater Watch Ref. 5207

Patek Philippe Platinum Grand Complications Minute Repeater Watch Ref. 5207

"Price upon request"
 

Patek Philippe Steel Neptune Watch Ref. 5080 with Salmon Dial

Patek Philippe Steel Neptune Watch Ref. 5080 with Salmon Dial

Sold Out

 
Patek Philippe - Patek Philippe Steel Tonneau Watch Ref. 3574 - The Keystone Watches

Patek Philippe Steel Tonneau Watch Ref. 3574

Patek Philippe Steel Tonneau Watch Ref. 3574

Sold Out

 

Patek Philippe Yellow Gold Gondolo Ref. 5014

Patek Philippe Yellow Gold Gondolo Ref. 5014

Sold Out

 

Patek Philippe Rose Gold Perpetual Calendar Ref. 5140

Patek Philippe Rose Gold Perpetual Calendar Ref. 5140

Sold Out

 

Patek Philippe White Gold Ellipse Ref. 3848 with JPE Chain Link Bracelet (New Arrival)

Patek Philippe White Gold Ellipse Ref. 3848 with JPE Chain Link Bracelet (New Arrival)

Sold Out

 

Patek Philippe White Gold Ellipse Ref. 3548 (New Arrival)

Patek Philippe White Gold Ellipse Ref. 3548 (New Arrival)

Sold Out

 

Patek Philippe White Gold Ref. 570

Patek Philippe White Gold Ref. 570

Sold Out

 

Patek Philippe Two-Tone Dial Watch Ref. 1503

Patek Philippe Two-Tone Dial Watch Ref. 1503

Sold Out

 

Patek Philippe White Gold Disco Volante Ref. 2501

Patek Philippe White Gold Disco Volante Ref. 2501

Sold Out

 

Patek Philippe Steel Calatrava Ref. 3466

Patek Philippe Steel Calatrava Ref. 3466

Sold Out

 
Patek Philippe - Patek Philippe Yellow Gold Minute Repeater Enamel Watch Ref. 3979 (New Arrival) - The Keystone Watches

Patek Philippe Yellow Gold Minute Repeater Enamel Watch Ref. 3979 (New Arrival)

Patek Philippe Yellow Gold Minute Repeater Enamel Watch Ref. 3979 (New Arrival)

"Price upon request"
 

Patek Philippe White Gold Calatrava Ref. 3919 (New Arrival)

Patek Philippe White Gold Calatrava Ref. 3919 (New Arrival)

Sold Out

 

Patek Philippe Yellow Gold Calatrava Ref. 3601 with Blue Dial (New Arrival)

Patek Philippe Yellow Gold Calatrava Ref. 3601 with Blue Dial (New Arrival)

Sold Out

 

Patek Philippe White Gold Calatrava Ref. 3445 Retailed by Gubelin (New Arrival)

Patek Philippe White Gold Calatrava Ref. 3445 Retailed by Gubelin (New Arrival)

Sold Out

 

Patek Philippe White Gold Perpetual Calendar Chronograph Ref. 3970

Patek Philippe White Gold Perpetual Calendar Chronograph Ref. 3970

Sold Out

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New Arrivals Preview
 
Breguet Platinum and Rose Gold Tourbillon Ref. 3457 (New Arrival)

Breguet Platinum and Rose Gold Tourbillon Ref. 3457 (New Arrival)

Breguet Platinum and Rose Gold Tourbillon Ref. 3457 (New Arrival)

$68,500 USD
 
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
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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