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Patek Philippe - Patek Philippe Platinum World Time Watch Ref. 5131 - The Keystone Watches

Patek Philippe Platinum World Time Watch Ref. 5131

Patek Philippe Platinum World Time Watch Ref. 5131

Sold Out

 
Cartier - Cartier Platinum Santos Ref. 1575 - The Keystone Watches

Cartier Platinum Santos Ref. 1575

Cartier Platinum Santos Ref. 1575

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Naoya Hida - Naoya Hida Steel NH TYPE1B - The Keystone Watches

Naoya Hida Steel NH TYPE1B

Naoya Hida Steel NH TYPE1B

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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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Franck Muller - Franck Muller Platinum Chronograph Tourbillon Ref. 7850CCT - The Keystone Watches

Franck Muller Platinum Chronograph Tourbillon Ref. 7850CCT

Franck Muller Platinum Chronograph Tourbillon Ref. 7850CCT

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Audemars Piguet - Audemars Piguet Steel Royal Oak Chronograph Ref. 25860ST - The Keystone Watches

Audemars Piguet Steel Royal Oak Chronograph Ref. 25860ST

Audemars Piguet Steel Royal Oak Chronograph Ref. 25860ST

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Patek Philippe - Patek Philippe White Gold Perpetual Engraved Ref. 5160 - The Keystone Watches

Patek Philippe White Gold Perpetual Engraved Ref. 5160

Patek Philippe White Gold Perpetual Engraved Ref. 5160

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Cartier - Cartier Yellow Gold Tank Cintree Watch Ref. 4123 - The Keystone Watches

Cartier Yellow Gold Tank Cintree Watch Ref. 4123

Cartier Yellow Gold Tank Cintree Watch Ref. 4123

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FP Journe - F.P Journe Platinum Ruthenium Edition Tourbillon, Edition of 99 Pieces - The Keystone Watches

F.P Journe Platinum Ruthenium Edition Tourbillon, Edition of 99 Pieces

F.P Journe Platinum Ruthenium Edition Tourbillon, Edition of 99 Pieces

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

Patek Philippe Platinum Perpetual Calendar Watch Ref. 5970

Patek Philippe Platinum Perpetual Calendar Watch Ref. 5970

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A. Lange & Sohne - A. Lange & Sohne Platinum Grand Lange 1 Lumen 117.035 - The Keystone Watches

A. Lange & Sohne Platinum Grand Lange 1 Lumen 117.035

A. Lange & Sohne Platinum Grand Lange 1 Lumen 117.035

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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

Sold Out

 
Patek Philippe - Patek Philippe Platinum Perpetual Calendar Split Seconds Chronograph Ref. 5004 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Split Seconds Chronograph Ref. 5004

Patek Philippe Platinum Perpetual Calendar Split Seconds Chronograph Ref. 5004

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Audemars Piguet - Audemars Platinum White Gold Frosted Royal Oak Ref. 26331 - The Keystone Watches

Audemars Platinum White Gold Frosted Royal Oak Ref. 26331

Audemars Platinum White Gold Frosted Royal Oak Ref. 26331

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Patek Philippe - Patek Philippe Yellow Gold Perpetual Calendar Watch Ref. 3940 - The Keystone Watches

Patek Philippe Yellow Gold Perpetual Calendar Watch Ref. 3940

Patek Philippe Yellow Gold Perpetual Calendar Watch Ref. 3940

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Jaeger LeCoultre - Jaeger LeCoultre Master Grande Minute Repeater Watch Ref. Q5011410, Limited to 100 Pieces - The Keystone Watches

Jaeger LeCoultre Master Grande Minute Repeater Watch Ref. Q5011410, Limited to 100 Pieces

Jaeger LeCoultre Master Grande Minute Repeater Watch Ref. Q5011410, Limited to 100 Pieces

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Rolex - Rolex White Gold Daytona Sodalite Watch Ref. 116509 - The Keystone Watches

Rolex White Gold Daytona Sodalite Watch Ref. 116509

Rolex White Gold Daytona Sodalite Watch Ref. 116509

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Patek Philippe - Patek Philippe Platinum Advanced Research Ref. 5550 - The Keystone Watches

Patek Philippe Platinum Advanced Research Ref. 5550

Patek Philippe Platinum Advanced Research Ref. 5550

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Ulysse Nardin - Ulysse Nardin Rose Gold Sonata Cathedral Watch Ref. 676-88 - The Keystone Watches

Ulysse Nardin Rose Gold Sonata Cathedral Watch Ref. 676-88

Ulysse Nardin Rose Gold Sonata Cathedral Watch Ref. 676-88

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A. Lange & Sohne - A. Lange & Sohne Platinum Darth Saxonia 105.035 - The Keystone Watches

A. Lange & Sohne Platinum Darth Saxonia 105.035

A. Lange & Sohne Platinum Darth Saxonia 105.035

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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)

Sold Out

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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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