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A. Lange & Sohne White Gold Lange 1 Ref. 101.039

A. Lange & Sohne White Gold Lange 1 Ref. 101.039

A. Lange & Sohne White Gold Lange 1 Ref. 101.039

$26,500 USD
 
A. Lange & Sohne White Gold Lange 1 Ref. 191.039 (New Arrival)

A. Lange & Sohne White Gold Lange 1 Ref. 191.039 (New Arrival)

A. Lange & Sohne White Gold Lange 1 Ref. 191.039 (New Arrival)

Sold Out

 
A. Lange & Sohne White Gold Langematik Big Date Ref. 308.027 on Wellendorf Bracelet

A. Lange & Sohne White Gold Langematik Big Date Ref. 308.027 on Wellendorf Bracelet

A. Lange & Sohne White Gold Langematik Big Date Ref. 308.027 on Wellendorf Bracelet

Sold Out

 
A. Lange & Sohne - A. Lange & Sohne White Gold Langematik Perpetual Watch Ref. 310.026 - The Keystone Watches

A. Lange & Sohne White Gold Langematik Perpetual Watch Ref. 310.026

A. Lange & Sohne White Gold Langematik Perpetual Watch Ref. 310.026

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A. Lange & Sohne - A. Lange & Sohne White Gold Langematik Sax-O-Mat Ref. 301.027 - The Keystone Watches

A. Lange & Sohne White Gold Langematik Sax-O-Mat Ref. 301.027

A. Lange & Sohne White Gold Langematik Sax-O-Mat Ref. 301.027

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A. Lange & Sohne - A. Lange & Sohne White Gold Perpetual Calendar Watch Ref. 310.026 - The Keystone Watches

A. Lange & Sohne White Gold Perpetual Calendar Watch Ref. 310.026

A. Lange & Sohne White Gold Perpetual Calendar Watch Ref. 310.026

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A. Lange & Sohne - A. Lange & Sohne White Gold Pour Le Merite Watch Ref. 260.028 - The Keystone Watches

A. Lange & Sohne White Gold Pour Le Merite Watch Ref. 260.028

A. Lange & Sohne White Gold Pour Le Merite Watch Ref. 260.028

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A. Lange & Sohne - A. Lange & Sohne White Gold Sax-O-Mat Automatic Ref. 351.027 - The Keystone Watches

A. Lange & Sohne White Gold Sax-O-Mat Automatic Ref. 351.027

A. Lange & Sohne White Gold Sax-O-Mat Automatic Ref. 351.027

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A. Lange & Sohne White Gold Saxomat Ref. 301.027 with Wellendorff Bracelet (New Arrival)

A. Lange & Sohne White Gold Saxomat Ref. 301.027 with Wellendorff Bracelet (New Arrival)

A. Lange & Sohne White Gold Saxomat Ref. 301.027 with Wellendorff Bracelet (New Arrival)

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A. Lange & Sohne - A. Lange & Sohne White Gold Saxonia Annual Calendar Ref. 330.026 - The Keystone Watches

A. Lange & Sohne White Gold Saxonia Annual Calendar Ref. 330.026

A. Lange & Sohne White Gold Saxonia Annual Calendar Ref. 330.026

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A. Lange & Sohne - A. Lange & Sohne White Gold Saxonia Dual Time Watch Ref. 385.026 - The Keystone Watches

A. Lange & Sohne White Gold Saxonia Dual Time Watch Ref. 385.026

A. Lange & Sohne White Gold Saxonia Dual Time Watch Ref. 385.026

Sold Out

 
A. Lange & Sohne White Gold Saxonia Ref. 878.038

A. Lange & Sohne White Gold Saxonia Ref. 878.038

A. Lange & Sohne White Gold Saxonia Ref. 878.038

$22,500 USD
 
A. Lange & Sohne - A. Lange & Sohne White Gold Saxonia Watch Ref. 216.026 - The Keystone Watches

A. Lange & Sohne White Gold Saxonia Watch Ref. 216.026

A. Lange & Sohne White Gold Saxonia Watch Ref. 216.026

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A. Lange & Sohne - A. Lange & Sohne White Gold Zeitwerk Striking Time Watch Ref. 145.029 - The Keystone Watches

A. Lange & Sohne White Gold Zeitwerk Striking Time Watch Ref. 145.029

A. Lange & Sohne White Gold Zeitwerk Striking Time Watch Ref. 145.029

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A. Lange & Sohne - A. Lange & Sohne White Gold Zeitwerk Striking Time Watch Ref. 145.029 - The Keystone Watches

A. Lange & Sohne White Gold Zeitwerk Striking Time Watch Ref. 145.029

A. Lange & Sohne White Gold Zeitwerk Striking Time Watch Ref. 145.029

Sold Out

 
A. Lange & Sohne - A. Lange & Sohne Yellow Gold 1815 Watch Ref. 233.021 - The Keystone Watches

A. Lange & Sohne Yellow Gold 1815 Watch Ref. 233.021

A. Lange & Sohne Yellow Gold 1815 Watch Ref. 233.021

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A. Lange & Sohne - A. Lange & Sohne Yellow Gold Datograph Watch Ref. 403.041 on Wellendorf Bracelet - The Keystone Watches

A. Lange & Sohne Yellow Gold Datograph Watch Ref. 403.041 on Wellendorf Bracelet

A. Lange & Sohne Yellow Gold Datograph Watch Ref. 403.041 on Wellendorf Bracelet

Sold Out

 
A. Lange & Sohne - A. Lange & Sohne Yellow Gold Lange 1 Bracelet Watch Ref. 101.021 - The Keystone Watches

A. Lange & Sohne Yellow Gold Lange 1 Bracelet Watch Ref. 101.021

A. Lange & Sohne Yellow Gold Lange 1 Bracelet Watch Ref. 101.021

Sold Out

 
A. Lange & Sohne - A. Lange & Sohne Yellow Gold Lange 1 Ref. 101.021 - The Keystone Watches

A. Lange & Sohne Yellow Gold Lange 1 Ref. 101.021

A. Lange & Sohne Yellow Gold Lange 1 Ref. 101.021

Sold Out

 
A. Lange & Sohne - A. Lange & Sohne Yellow Gold Lange 1 Watch Ref. 101.021 - The Keystone Watches

A. Lange & Sohne Yellow Gold Lange 1 Watch Ref. 101.021

A. Lange & Sohne Yellow Gold Lange 1 Watch Ref. 101.021

Sold Out

 
A. Lange & Sohne - A. Lange & Sohne Yellow Gold Lange 1 Watch Ref. 101.021 - The Keystone Watches

A. Lange & Sohne Yellow Gold Lange 1 Watch Ref. 101.021

A. Lange & Sohne Yellow Gold Lange 1 Watch Ref. 101.021

Sold Out

 
A. Lange & Sohne - A. Lange & Sohne Yellow Gold Lange One First Series Watch, Ref. 101.001 - The Keystone Watches

A. Lange & Sohne Yellow Gold Lange One First Series Watch, Ref. 101.001

A. Lange & Sohne Yellow Gold Lange One First Series Watch, Ref. 101.001

Sold Out

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New Arrivals Preview
 
Patek Philippe Platinum Perpetual Calendar Minute Repeater Ref. 5307 (New Arrival)

Patek Philippe Platinum Perpetual Calendar Minute Repeater Ref. 5307 (New Arrival)

Patek Philippe Platinum Perpetual Calendar Minute Repeater Ref. 5307 (New Arrival)

$1,950,000 USD
 
Rolex Cosmograph Daytona Big Red Ref. 6265 Box and Papers (New Arrival)

Rolex Cosmograph Daytona Big Red Ref. 6265 Box and Papers (New Arrival)

Rolex Cosmograph Daytona Big Red Ref. 6265 Box and Papers (New Arrival)

$97,500 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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