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

Patek Philippe White Gold Perpetual Calendar Watch Ref. 5140

Patek Philippe White Gold Perpetual Calendar Watch Ref. 5140

Sold Out

 
Patek Philippe - Patek Philippe White Gold World Time Watch Ref. 5110G - The Keystone Watches

Patek Philippe White Gold World Time Watch Ref. 5110G

Patek Philippe White Gold World Time Watch Ref. 5110G

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Patek Philippe - Patek Philippe Platinum World Time Watch Ref. 5130 - The Keystone Watches

Patek Philippe Platinum World Time Watch Ref. 5130

Patek Philippe Platinum World Time Watch Ref. 5130

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IWC - IWC Yellow Gold Perpetual Calendar Tourbillon Da Vinci Ref. 3752 - The Keystone Watches

IWC Yellow Gold Perpetual Calendar Tourbillon Da Vinci Ref. 3752

IWC Yellow Gold Perpetual Calendar Tourbillon Da Vinci Ref. 3752

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Patek Philippe - Patek Philippe Rose Gold Aquanaut Watch Ref. 5164 - The Keystone Watches

Patek Philippe Rose Gold Aquanaut Watch Ref. 5164

Patek Philippe Rose Gold Aquanaut Watch Ref. 5164

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Patek Philippe - Patek Philippe White Gold Annual Calendar Regulator Watch Ref. 5235 - The Keystone Watches

Patek Philippe White Gold Annual Calendar Regulator Watch Ref. 5235

Patek Philippe White Gold Annual Calendar Regulator Watch Ref. 5235

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Omega - Omega Steel Speedmaster Ref. 3570.40 with Japan Racing Dial - The Keystone Watches

Omega Steel Speedmaster Ref. 3570.40 with Japan Racing Dial

Omega Steel Speedmaster Ref. 3570.40 with Japan Racing Dial

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Rolex - Rolex White Gold Cosmograph Daytona Ref. 116519LN - The Keystone Watches

Rolex White Gold Cosmograph Daytona Ref. 116519LN

Rolex White Gold Cosmograph Daytona Ref. 116519LN

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Patek Philippe - Patek Philippe Yellow Gold Chronograph 175th Anniversary Watch Ref. 5975 - The Keystone Watches

Patek Philippe Yellow Gold Chronograph 175th Anniversary Watch Ref. 5975

Patek Philippe Yellow Gold Chronograph 175th Anniversary Watch Ref. 5975

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Audemars Piguet - Audemars Piguet Steel Royal Oak Skeleton Tourbillon Watch Ref. 26518 - The Keystone Watches

Audemars Piguet Steel Royal Oak Skeleton Tourbillon Watch Ref. 26518

Audemars Piguet Steel Royal Oak Skeleton Tourbillon Watch Ref. 26518

Sold Out

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

Patek Philippe Rose Gold Perpetual Calendar Chronograph Ref. 5270

Patek Philippe Rose Gold Perpetual Calendar Chronograph Ref. 5270

Sold Out

 
Patek Philippe - Patek Philippe White Gold World Time Watch Ref. 5130 - The Keystone Watches

Patek Philippe White Gold World Time Watch Ref. 5130

Patek Philippe White Gold World Time Watch Ref. 5130

Sold Out

 
Patek Philippe - Patek Philippe Platinum Perpetual Calendar Watch Ref. 5270 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Watch Ref. 5270

Patek Philippe Platinum Perpetual Calendar Watch Ref. 5270

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Patek Philippe - Patek Philippe White Gold Annual Calendar Watch Ref. 5035 - The Keystone Watches

Patek Philippe White Gold Annual Calendar Watch Ref. 5035

Patek Philippe White Gold Annual Calendar Watch Ref. 5035

Sold Out

 
Patek Philippe - Patek Philippe White Gold World Time Watch Ref. 5130 - The Keystone Watches

Patek Philippe White Gold World Time Watch Ref. 5130

Patek Philippe White Gold World Time Watch Ref. 5130

Sold Out

 
Patek Philippe - Patek Philippe Steel Nautilus Watch Ref. 5711 - The Keystone Watches

Patek Philippe Steel Nautilus Watch Ref. 5711

Patek Philippe Steel Nautilus Watch Ref. 5711

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Patek Philippe - Patek Philippe White Gold Perpetual Calendar Watch Ref. 5970 - The Keystone Watches

Patek Philippe White Gold Perpetual Calendar Watch Ref. 5970

Patek Philippe White Gold Perpetual Calendar Watch Ref. 5970

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Patek Philippe - Patek Philippe Rose Gold Minute Repeater Watch Ref. 5531 - The Keystone Watches

Patek Philippe Rose Gold Minute Repeater Watch Ref. 5531

Patek Philippe Rose Gold Minute Repeater Watch Ref. 5531

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Patek Philippe - Patek Philippe Platinum Celestial Emerald Watch Ref. 6104 (NEW ARRIVAL) - The Keystone Watches

Patek Philippe Platinum Celestial Emerald Watch Ref. 6104 (NEW ARRIVAL)

Patek Philippe Platinum Celestial Emerald Watch Ref. 6104 (NEW ARRIVAL)

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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 Platinum Perpetual Calendar Split Seconds Chronograph Watch Ref. 5204P - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Split Seconds Chronograph Watch Ref. 5204P

Patek Philippe Platinum Perpetual Calendar Split Seconds Chronograph Watch Ref. 5204P

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Patek Philippe - Patek Philippe Steel Nautilus Watch Ref. 5711 (NEW ARRIVAL) - The Keystone Watches

Patek Philippe Steel Nautilus Watch Ref. 5711 (NEW ARRIVAL)

Patek Philippe Steel Nautilus Watch Ref. 5711 (NEW ARRIVAL)

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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.

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