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A. Lange & Sohne - A. Lange & Sohne Rose Gold Grand Lange 1 Moonphase Watch Ref. 139.032 - The Keystone Watches

A. Lange & Sohne Rose Gold Grand Lange 1 Moonphase Watch Ref. 139.032

A. Lange & Sohne Rose Gold Grand Lange 1 Moonphase Watch Ref. 139.032

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A. Lange & Sohne Rose Gold Lange 1 Ref. 101.032

A. Lange & Sohne Rose Gold Lange 1 Ref. 101.032

A. Lange & Sohne Rose Gold Lange 1 Ref. 101.032

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A. Lange & Sohne - A. Lange & Sohne Rose Gold Lange 1 Ref. 111.031 - The Keystone Watches

A. Lange & Sohne Rose Gold Lange 1 Ref. 111.031

A. Lange & Sohne Rose Gold Lange 1 Ref. 111.031

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A. Lange & Sohne - A. Lange & Sohne Rose Gold Lange 1 Tourbillon Watch - The Keystone Watches

A. Lange & Sohne Rose Gold Lange 1 Tourbillon Watch

A. Lange & Sohne Rose Gold Lange 1 Tourbillon Watch

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A. Lange & Sohne - A. Lange & Sohne Rose Gold Lange 1 Tourbillon Watch Ref. 704.032 - The Keystone Watches

A. Lange & Sohne Rose Gold Lange 1 Tourbillon Watch Ref. 704.032

A. Lange & Sohne Rose Gold Lange 1 Tourbillon Watch Ref. 704.032

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A. Lange & Sohne - A. Lange & Sohne Rose Gold Lange 1 Watch Ref. 101.031 - The Keystone Watches

A. Lange & Sohne Rose Gold Lange 1 Watch Ref. 101.031

A. Lange & Sohne Rose Gold Lange 1 Watch Ref. 101.031

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A. Lange & Sohne - A. Lange & Sohne Rose Gold Lange 1 Watch Ref. 101.033 - The Keystone Watches

A. Lange & Sohne Rose Gold Lange 1 Watch Ref. 101.033

A. Lange & Sohne Rose Gold Lange 1 Watch Ref. 101.033

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A. Lange & Sohne - A. Lange & Sohne Rose Gold Richard Lange Ref. 232.032 - The Keystone Watches

A. Lange & Sohne Rose Gold Richard Lange Ref. 232.032

A. Lange & Sohne Rose Gold Richard Lange Ref. 232.032

$19,500 USD
 
A. Lange & Sohne - A. Lange & Sohne Rose Gold Saxonia Annual Calendar Watch Ref. 330.032 - The Keystone Watches

A. Lange & Sohne Rose Gold Saxonia Annual Calendar Watch Ref. 330.032

A. Lange & Sohne Rose Gold Saxonia Annual Calendar Watch Ref. 330.032

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A. Lange & Sohne - A. Lange & Sohne Rose Gold Saxonia Automatic Watch Ref. 315.032 - The Keystone Watches

A. Lange & Sohne Rose Gold Saxonia Automatic Watch Ref. 315.032

A. Lange & Sohne Rose Gold Saxonia Automatic Watch Ref. 315.032

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A. Lange & Sohne - A. Lange & Sohne Rose Gold Saxonia Watch Ref. 216.033 - The Keystone Watches

A. Lange & Sohne Rose Gold Saxonia Watch Ref. 216.033

A. Lange & Sohne Rose Gold Saxonia Watch Ref. 216.033

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A. Lange & Sohne - A. Lange & Sohne Rose Gold Saxonia Watch Ref. 219.032 - The Keystone Watches

A. Lange & Sohne Rose Gold Saxonia Watch Ref. 219.032

A. Lange & Sohne Rose Gold Saxonia Watch Ref. 219.032

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A. Lange & Sohne - A. Lange & Sohne Saxonia Annual Calendar Watch, Ref. 330.026 - The Keystone Watches

A. Lange & Sohne Saxonia Annual Calendar Watch, Ref. 330.026

A. Lange & Sohne Saxonia Annual Calendar Watch, Ref. 330.026

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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

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

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

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A. Lange & Sohne - A. Lange & Sohne White Gold 1815 Chronograph Watch 402.026 - The Keystone Watches

A. Lange & Sohne White Gold 1815 Chronograph Watch 402.026

A. Lange & Sohne White Gold 1815 Chronograph Watch 402.026

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A. Lange & Sohne - A. Lange & Sohne White Gold 1815 Up Down Watch Ref. 234.026 - The Keystone Watches

A. Lange & Sohne White Gold 1815 Up Down Watch Ref. 234.026

A. Lange & Sohne White Gold 1815 Up Down Watch Ref. 234.026

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A. Lange & Sohne - A. Lange & Sohne White Gold 1815 Watch Ref. 206.029 - The Keystone Watches

A. Lange & Sohne White Gold 1815 Watch Ref. 206.029

A. Lange & Sohne White Gold 1815 Watch Ref. 206.029

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

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

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

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A. Lange & Sohne - A. Lange & Sohne White Gold Cabaret Soiree Diamond Watch, Ref. 868.032 - The Keystone Watches

A. Lange & Sohne White Gold Cabaret Soiree Diamond Watch, Ref. 868.032

A. Lange & Sohne White Gold Cabaret Soiree Diamond Watch, Ref. 868.032

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A. Lange & Sohne - A. Lange & Sohne White Gold Dual TIme Watch, Ref. 386.026 - The Keystone Watches

A. Lange & Sohne White Gold Dual TIme Watch, Ref. 386.026

A. Lange & Sohne White Gold Dual TIme Watch, Ref. 386.026

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A. Lange & Sohne White Gold Flyback Chronograph Ref. 401.026

A. Lange & Sohne White Gold Flyback Chronograph Ref. 401.026

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A. Lange & Sohne - A. Lange & Sohne White Gold Lange 1 101.027x - The Keystone Watches

A. Lange & Sohne White Gold Lange 1 101.027x

A. Lange & Sohne White Gold Lange 1 101.027x

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A. Lange & Sohne - A. Lange & Sohne White Gold Lange 1 Bracelet Watch - The Keystone Watches

A. Lange & Sohne White Gold Lange 1 Bracelet Watch

A. Lange & Sohne White Gold Lange 1 Bracelet Watch

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A. Lange & Sohne - A. Lange & Sohne White Gold Lange 1 Luminous Watch Ref. 101.029 - The Keystone Watches

A. Lange & Sohne White Gold Lange 1 Luminous Watch Ref. 101.029

A. Lange & Sohne White Gold Lange 1 Luminous Watch Ref. 101.029

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A. Lange & Sohne - A. Lange & Sohne White Gold Lange 1 Luminous Watch Ref. 101.029 - The Keystone Watches

A. Lange & Sohne White Gold Lange 1 Luminous Watch Ref. 101.029

A. Lange & Sohne White Gold Lange 1 Luminous Watch Ref. 101.029

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A. Lange & Sohne - A. Lange & Sohne White Gold Lange 1 Perpetual Calendar Ref. 345.056 - The Keystone Watches

A. Lange & Sohne White Gold Lange 1 Perpetual Calendar Ref. 345.056

A. Lange & Sohne White Gold Lange 1 Perpetual Calendar Ref. 345.056

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A. Lange & Sohne - A. Lange & Sohne White Gold Lange 1 Ref. 101.030 - The Keystone Watches

A. Lange & Sohne White Gold Lange 1 Ref. 101.030

A. Lange & Sohne White Gold Lange 1 Ref. 101.030

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A. Lange & Sohne - A. Lange & Sohne White Gold Lange 1 Ref. 101.039 - The Keystone Watches

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

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

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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)

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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

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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

Sold Out

 
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

Sold Out

 
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

Sold Out

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New Arrivals Preview
 
Cartier Platinum Tank A Guichet Ref. WGTA0236, 2025 Edition (New Arrival)

Cartier Platinum Tank A Guichet Ref. WGTA0236, 2025 Edition (New Arrival)

Cartier Platinum Tank A Guichet Ref. WGTA0236, 2025 Edition (New Arrival)

$150,000 USD
 
Patek Philippe White Gold Calatrava Watch Ref. 4189 (New Arrival)

Patek Philippe White Gold Calatrava Watch Ref. 4189 (New Arrival)

Patek Philippe White Gold Calatrava Watch Ref. 4189 (New Arrival)

$9,800 USD
 
Rolex Yellow Gold Day-Date Watch Ref. 1803 with Claw Dial (New Arrival)

Rolex Yellow Gold Day-Date Watch Ref. 1803 with Claw Dial (New Arrival)

Rolex Yellow Gold Day-Date Watch Ref. 1803 with Claw Dial (New Arrival)

$18,750 USD
 
Boucheron - Boucheron Yellow Gold Invisible Set Sapphire Watch (New Arrival) - The Keystone Watches

Boucheron Yellow Gold Invisible Set Sapphire Watch (New Arrival)

Boucheron Yellow Gold Invisible Set Sapphire Watch (New Arrival)

$9,500 USD
 
Rolex - Rolex Yellow Gold Cellini Watch Ref. 4014/8 with Orange Dial (New Arrival) - The Keystone Watches

Rolex Yellow Gold Cellini Watch Ref. 4014/8 with Orange Dial (New Arrival)

Rolex Yellow Gold Cellini Watch Ref. 4014/8 with Orange Dial (New Arrival)

$7,500 USD
 
Rolex Steel Submariner Ref. 5513 with Pumkin Lume (New Arrival)

Rolex Steel Submariner Ref. 5513 with Pumkin Lume (New Arrival)

Rolex Steel Submariner Ref. 5513 with Pumkin Lume (New Arrival)

$15,500 USD
 
Patek Philiipe White Gold Calatrava Watch Ref. 3919 (New Arrival)

Patek Philiipe White Gold Calatrava Watch Ref. 3919 (New Arrival)

Patek Philiipe White Gold Calatrava Watch Ref. 3919 (New Arrival)

$15,000 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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