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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

Sold Out

 
Patek Philippe - Patek Philippe Yellow Gold Calatrava Watch Ref. 2551 - The Keystone Watches

Patek Philippe Yellow Gold Calatrava Watch Ref. 2551

Patek Philippe Yellow Gold Calatrava Watch Ref. 2551

Sold Out

 
Patek Philippe - Patek Philippe Stainless Steel Watch Ref. 3574 - The Keystone Watches

Patek Philippe Stainless Steel Watch Ref. 3574

Patek Philippe Stainless Steel Watch Ref. 3574

Sold Out

 
Audemars Piguet - Audemars Piguet White Gold Royal Oak Tuxedo Diamond Watch - The Keystone Watches

Audemars Piguet White Gold Royal Oak Tuxedo Diamond Watch

Audemars Piguet White Gold Royal Oak Tuxedo Diamond Watch

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Audemars Piguet - Audemars Piguet Royal Oak Offshore Chronograph Yellow Watch - The Keystone Watches

Audemars Piguet Royal Oak Offshore Chronograph Yellow Watch

Audemars Piguet Royal Oak Offshore Chronograph Yellow Watch

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Rolex - Rolex Yellow Gold Day-Date Watch Ref. 18038 - The Keystone Watches

Rolex Yellow Gold Day-Date Watch Ref. 18038

Rolex Yellow Gold Day-Date Watch Ref. 18038

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Rolex - Rolex Yellow Gold Day-Date Watch Ref. 18238 - The Keystone Watches

Rolex Yellow Gold Day-Date Watch Ref. 18238

Rolex Yellow Gold Day-Date Watch Ref. 18238

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Audemars Piguet - Audemars Piguet Platinum Perpetual Skeleton Watch - The Keystone Watches

Audemars Piguet Platinum Perpetual Skeleton Watch

Audemars Piguet Platinum Perpetual Skeleton Watch

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Cartier - Cartier White Gold Tortue Minute Repeater Watch - The Keystone Watches

Cartier White Gold Tortue Minute Repeater Watch

Cartier White Gold Tortue Minute Repeater Watch

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Rolex - Rolex White Gold Day-Date 1803, 1969 - The Keystone Watches

Rolex White Gold Day-Date 1803, 1969

Rolex White Gold Day-Date 1803, 1969

Sold Out

 
FP Journe - F.P Journe Rose Gold Octa Divine 42mm Watch - The Keystone Watches

F.P Journe Rose Gold Octa Divine 42mm Watch

F.P Journe Rose Gold Octa Divine 42mm Watch

Sold Out

 
Rolex - Rolex White Gold Day-Date Baguette Diamond Watch Ref. 218399 - The Keystone Watches

Rolex White Gold Day-Date Baguette Diamond Watch Ref. 218399

Rolex White Gold Day-Date Baguette Diamond Watch Ref. 218399

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Patek Philippe - Patek Philippe Stainless Steel Calatrava Watch Ref. 5565 - The Keystone Watches

Patek Philippe Stainless Steel Calatrava Watch Ref. 5565

Patek Philippe Stainless Steel Calatrava Watch Ref. 5565

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Audemars Piguet - Audemars Piguet Royal Oak Offshore Red Watch Ref. 25770 - The Keystone Watches

Audemars Piguet Royal Oak Offshore Red Watch Ref. 25770

Audemars Piguet Royal Oak Offshore Red Watch Ref. 25770

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Vacheron Constantin - Vacheron Constantin Yellow Gold Triple Date Moonphase Watch - The Keystone Watches

Vacheron Constantin Yellow Gold Triple Date Moonphase Watch

Vacheron Constantin Yellow Gold Triple Date Moonphase Watch

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Audemars Piguet - Audemars Piguet White Gold Skeletonized Baguette Diamond Watch - The Keystone Watches

Audemars Piguet White Gold Skeletonized Baguette Diamond Watch

Audemars Piguet White Gold Skeletonized Baguette Diamond Watch

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Patek Philippe - Patek Philippe Yellow Gold Oversized Watch Ref. 2511, 1954 - The Keystone Watches

Patek Philippe Yellow Gold Oversized Watch Ref. 2511, 1954

Patek Philippe Yellow Gold Oversized Watch Ref. 2511, 1954

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A. Lange & Sohne - A. Lange & Sohne Platinum Langematik Jubilee Anniversary Enamel Watch Ref. 302.025 - The Keystone Watches

A. Lange & Sohne Platinum Langematik Jubilee Anniversary Enamel Watch Ref. 302.025

A. Lange & Sohne Platinum Langematik Jubilee Anniversary Enamel Watch Ref. 302.025

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Richard Mille - Richard Mille Skeletonized Paris Boutique RM10 Watch, Limited to 10 Pieces - The Keystone Watches

Richard Mille Skeletonized Paris Boutique RM10 Watch, Limited to 10 Pieces

Richard Mille Skeletonized Paris Boutique RM10 Watch, Limited to 10 Pieces

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Patek Philippe - Patek Philippe Yellow Gold Jumbo Nautilus Watch Ref. 3700 with Archive Paper - The Keystone Watches

Patek Philippe Yellow Gold Jumbo Nautilus Watch Ref. 3700 with Archive Paper

Patek Philippe Yellow Gold Jumbo Nautilus Watch Ref. 3700 with Archive Paper

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Audemars Piguet - Audemars Piguet Rose Gold Tourbillon Watch - The Keystone Watches

Audemars Piguet Rose Gold Tourbillon Watch

Audemars Piguet Rose Gold Tourbillon Watch

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Audemars Piguet - Audemars Piguet Rose Gold Royal Oak Ref. 15202 - The Keystone Watches

Audemars Piguet Rose Gold Royal Oak Ref. 15202

Audemars Piguet Rose Gold Royal Oak Ref. 15202

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New Arrivals Preview
 
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
 
Piaget Yellow Gold Lapis Lazuli & Jade Cuff Watch (New Arrivals)

Piaget Yellow Gold Lapis Lazuli & Jade Cuff Watch (New Arrivals)

Piaget Yellow Gold Lapis Lazuli & Jade Cuff Watch (New Arrivals)

$48,000 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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