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A. Lange & Sohne - A. Lange & Sohne White Gold 1815 Annual Calendar Watch Ref. 238.026 - The Keystone Watches

A. Lange & Sohne White Gold 1815 Annual Calendar Watch Ref. 238.026

A. Lange & Sohne White Gold 1815 Annual Calendar Watch Ref. 238.026

Sold Out

 
Cartier - Cartier Yellow Gold Tank Cintree Watch Ref. 4123 (NEW ARRIVAL) - The Keystone Watches

Cartier Yellow Gold Tank Cintree Watch Ref. 4123 (NEW ARRIVAL)

Cartier Yellow Gold Tank Cintree Watch Ref. 4123 (NEW ARRIVAL)

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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

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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

Sold Out

 
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

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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

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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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Rolex - Rolex White Gold Day-Date Diamond Watch Ref. 118399 - The Keystone Watches

Rolex White Gold Day-Date Diamond Watch Ref. 118399

Rolex White Gold Day-Date Diamond Watch Ref. 118399

Sold Out

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

Patek Philippe White Gold Perpetual Calendar Watch Ref. 5270

Patek Philippe White Gold Perpetual Calendar Watch Ref. 5270

Sold Out

 
Cartier - Cartier White Gold Tank Cintree Chinese Dual Time Ref. 2767 - The Keystone Watches

Cartier White Gold Tank Cintree Chinese Dual Time Ref. 2767

Cartier White Gold Tank Cintree Chinese Dual Time Ref. 2767

Sold Out

 
Rolex - Rolex Day-Date White Gold Ref. 228239 with Meteorite Dial - The Keystone Watches

Rolex Day-Date White Gold Ref. 228239 with Meteorite Dial

Rolex Day-Date White Gold Ref. 228239 with Meteorite Dial

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Patek Philippe - Patek Philippe White Gold Aquanaut Khaki Green Watch Ref. 5168 (NEW ARRIVAL) - The Keystone Watches

Patek Philippe White Gold Aquanaut Khaki Green Watch Ref. 5168 (NEW ARRIVAL)

Patek Philippe White Gold Aquanaut Khaki Green Watch Ref. 5168 (NEW ARRIVAL)

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Rolex - Rolex Platinum Cosmograph Daytona Watch Ref. 116506 (NEW ARRIVAL) - The Keystone Watches

Rolex Platinum Cosmograph Daytona Watch Ref. 116506 (NEW ARRIVAL)

Rolex Platinum Cosmograph Daytona Watch Ref. 116506 (NEW ARRIVAL)

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Tudor - Tudor Steel Chrono-Time Chronograph Watch Ref. 79280 with Salmon Dial (NEW ARRIVAL) - The Keystone Watches

Tudor Steel Chrono-Time Chronograph Watch Ref. 79280 with Salmon Dial (NEW ARRIVAL)

Tudor Steel Chrono-Time Chronograph Watch Ref. 79280 with Salmon Dial (NEW ARRIVAL)

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Patek Philippe - Patek Philippe Steel Dual Time Aquanaut Ref. 5164 - The Keystone Watches

Patek Philippe Steel Dual Time Aquanaut Ref. 5164

Patek Philippe Steel Dual Time Aquanaut Ref. 5164

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Rolex - Rolex Platinum Daytona Watch Ref. 116506 with Baguette Diamond Markers - The Keystone Watches

Rolex Platinum Daytona Watch Ref. 116506 with Baguette Diamond Markers

Rolex Platinum Daytona Watch Ref. 116506 with Baguette Diamond Markers

Sold Out

 
Rolex - Rolex Cosmograph Daytona Blue Beach Watch Ref. 116519 - The Keystone Watches

Rolex Cosmograph Daytona Blue Beach Watch Ref. 116519

Rolex Cosmograph Daytona Blue Beach Watch Ref. 116519

Sold Out

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

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

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

Sold Out

 
Patek Philippe - Patek Philippe Platinum Chronograph Watch Ref. 5170 - The Keystone Watches

Patek Philippe Platinum Chronograph Watch Ref. 5170

Patek Philippe Platinum Chronograph Watch Ref. 5170

Sold Out

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New Arrivals Preview
 
Gerald Genta Fantasy Retro M.10 MOP Mickey Mouse for Hong Kong Disney Watch (New Arrival)

Gerald Genta Fantasy Retro M.10 MOP Mickey Mouse for Hong Kong Disney Watch (New Arrival)

Gerald Genta Fantasy Retro M.10 MOP Mickey Mouse for Hong Kong Disney Watch (New Arrival)

$23,750 USD
 
Vacheron Constantin - Vacheron Constantin Yellow Gold Grand Complication Pocket Watch (NEW ARRIVAL) - The Keystone Watches

Vacheron Constantin Yellow Gold Grand Complication Pocket Watch (NEW ARRIVAL)

Vacheron Constantin Yellow Gold Grand Complication Pocket Watch (NEW ARRIVAL)

$155,000 USD
 
Cartier Yellow Gold Tank Obus Ref. 1630 with Black Enamel (New Arrival)

Cartier Yellow Gold Tank Obus Ref. 1630 with Black Enamel (New Arrival)

Cartier Yellow Gold Tank Obus Ref. 1630 with Black Enamel (New Arrival)

$14,500 USD
 
Patek Philippe Steel Automatic UFO Ref. 3580 (New Arrival)

Patek Philippe Steel Automatic UFO Ref. 3580 (New Arrival)

Patek Philippe Steel Automatic UFO Ref. 3580 (New Arrival)

$13,250 USD
 
Patek Philiipe Rose Gold Calatrava Watch Ref. 3796 (New Arrival)

Patek Philiipe Rose Gold Calatrava Watch Ref. 3796 (New Arrival)

Patek Philiipe Rose Gold Calatrava Watch Ref. 3796 (New Arrival)

$16,500 USD
 

Piaget White Gold Altiplano Ref. 90122 with Diamonds and Sapphires (New Arrival)

Piaget White Gold Altiplano Ref. 90122 with Diamonds and Sapphires (New Arrival)

$17,750 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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