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

Patek Philippe Steel Annual Calendar Chronograph Ref. 5960

Patek Philippe Steel Annual Calendar Chronograph Ref. 5960

Sold Out

 
Patek Philippe - Patek Philippe Steel Nautilus Ref. 3710/1A - The Keystone Watches

Patek Philippe Steel Nautilus Ref. 3710/1A

Patek Philippe Steel Nautilus Ref. 3710/1A

Sold Out

 
Patek Philippe - Patek Philippe Yellow Gold Perpetual Calendar Ref. 3940. Second Series Dial - The Keystone Watches

Patek Philippe Yellow Gold Perpetual Calendar Ref. 3940. Second Series Dial

Patek Philippe Yellow Gold Perpetual Calendar Ref. 3940. Second Series Dial

Sold Out

 
Patek Philippe Platinum Split Seconds Monopusher Chronograph 5959

Patek Philippe Platinum Split Seconds Monopusher Chronograph 5959

Patek Philippe Platinum Split Seconds Monopusher Chronograph 5959

"Price upon request"
 
Patek Philippe - Patek Philippe Rose Gold Perpetual Calendar Ref. 5140 - The Keystone Watches

Patek Philippe Rose Gold Perpetual Calendar Ref. 5140

Patek Philippe Rose Gold Perpetual Calendar Ref. 5140

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Watch Ref. 5236 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Watch Ref. 5236

Patek Philippe Platinum Perpetual Calendar Watch Ref. 5236

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Watch Ref. 5140 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Watch Ref. 5140

Patek Philippe Platinum Perpetual Calendar Watch Ref. 5140

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Patek Philippe - Patek Philippe White Gold Annual Calendar Watch Ref. 5396 - The Keystone Watches

Patek Philippe White Gold Annual Calendar Watch Ref. 5396

Patek Philippe White Gold Annual Calendar Watch Ref. 5396

Sold Out

 
Patek Philippe - Patek Philippe Yellow Gold Nautilus Ref. 5066 - The Keystone Watches

Patek Philippe Yellow Gold Nautilus Ref. 5066

Patek Philippe Yellow Gold Nautilus Ref. 5066

Sold Out

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

Patek Philippe White Gold Gondolo Ref. 5489

Patek Philippe White Gold Gondolo Ref. 5489

Sold Out

 

Patek Philippe White Gold Skeletonized Calatrava Watch Ref. 7180

Patek Philippe White Gold Skeletonized Calatrava Watch Ref. 7180

Sold Out

 
Patek Philippe - Patek Philippe Platinum Minute Repeater Watch Ref. 5078 - The Keystone Watches

Patek Philippe Platinum Minute Repeater Watch Ref. 5078

Patek Philippe Platinum Minute Repeater Watch Ref. 5078

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Patek Philippe - Patek Philippe Platinum Minute Repeating Tourbillon Watch Ref. 3939 - The Keystone Watches

Patek Philippe Platinum Minute Repeating Tourbillon Watch Ref. 3939

Patek Philippe Platinum Minute Repeating Tourbillon Watch Ref. 3939

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Patek Philippe - Patek Philippe White Gold Calatrava Bracelet Watch Ref. 3606 - The Keystone Watches

Patek Philippe White Gold Calatrava Bracelet Watch Ref. 3606

Patek Philippe White Gold Calatrava Bracelet Watch Ref. 3606

Sold Out

 
Patek Philippe - Patek Philippe Rose Gold Nautilus Ruby Watch Ref. 5980 - The Keystone Watches

Patek Philippe Rose Gold Nautilus Ruby Watch Ref. 5980

Patek Philippe Rose Gold Nautilus Ruby Watch Ref. 5980

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Patek Philippe - Patek Philippe Platinum Chronograph Watch Ref. 5070, Single Sealed - The Keystone Watches

Patek Philippe Platinum Chronograph Watch Ref. 5070, Single Sealed

Patek Philippe Platinum Chronograph Watch Ref. 5070, Single Sealed

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Patek Philippe - Patek Philippe Platinum Split Seconds Chronograph Watch Ref. 5370 - The Keystone Watches

Patek Philippe Platinum Split Seconds Chronograph Watch Ref. 5370

Patek Philippe Platinum Split Seconds Chronograph Watch Ref. 5370

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Patek Philippe - Patek Philippe White Gold Bracelet Watch Ref. 3571 with Rare Textured Blue Dial - The Keystone Watches

Patek Philippe White Gold Bracelet Watch Ref. 3571 with Rare Textured Blue Dial

Patek Philippe White Gold Bracelet Watch Ref. 3571 with Rare Textured Blue Dial

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Patek Philippe - Patek Philippe White Gold Golden Ellipse Watch Ref. 3545 - The Keystone Watches

Patek Philippe White Gold Golden Ellipse Watch Ref. 3545

Patek Philippe White Gold Golden Ellipse Watch Ref. 3545

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Patek Philippe - Patek Philippe White Gold Mechanical Watch Ref. 3567 with Textured Blue Dial - The Keystone Watches

Patek Philippe White Gold Mechanical Watch Ref. 3567 with Textured Blue Dial

Patek Philippe White Gold Mechanical Watch Ref. 3567 with Textured Blue Dial

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Patek Philippe Yellow Gold Calatrava Ref. 3440

Patek Philippe Yellow Gold Calatrava Ref. 3440

Patek Philippe Yellow Gold Calatrava Ref. 3440

Sold Out

 
Patek Philippe - Patek Philippe Yellow Gold Automatic Calatrava Ref. 3601 - The Keystone Watches

Patek Philippe Yellow Gold Automatic Calatrava Ref. 3601

Patek Philippe Yellow Gold Automatic Calatrava Ref. 3601

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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