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Cartier Yellow Gold Pasha Chronograph Ref. W3014051

Cartier Yellow Gold Pasha Chronograph Ref. W3014051

Cartier Yellow Gold Pasha Chronograph Ref. W3014051

Sold Out

 
Patek Philippe White Gold Baguette Bezel Watch Ref. 3357/2

Patek Philippe White Gold Baguette Bezel Watch Ref. 3357/2

Patek Philippe White Gold Baguette Bezel Watch Ref. 3357/2

$19,500 USD
 
Patek Philippe Yellow Gold Calatrava Ref. 3440 on Gey Freres Band

Patek Philippe Yellow Gold Calatrava Ref. 3440 on Gey Freres Band

Patek Philippe Yellow Gold Calatrava Ref. 3440 on Gey Freres Band

$19,500 USD
 
Audemars Piguet Yellow Gold Quantieme Perpetual Ref. 5548

Audemars Piguet Yellow Gold Quantieme Perpetual Ref. 5548

Audemars Piguet Yellow Gold Quantieme Perpetual Ref. 5548

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Girard Perregaux White Gold Triple Bridge Tourbillon Ref. 99350 with Unique Cloisonne Dial

Girard Perregaux White Gold Triple Bridge Tourbillon Ref. 99350 with Unique Cloisonne Dial

Girard Perregaux White Gold Triple Bridge Tourbillon Ref. 99350 with Unique Cloisonne Dial

$85,000 USD
 
Cartier Yellow Gold Tonneau Watch, Paris 1991

Cartier Yellow Gold Tonneau Watch, Paris 1991

Cartier Yellow Gold Tonneau Watch, Paris 1991

Sold Out

 
Patek Philippe Steel 5711 First Serial 2006 Complete Retail Ready

Patek Philippe Steel 5711 First Serial 2006 Complete Retail Ready

Patek Philippe Steel 5711 First Serial 2006 Complete Retail Ready

Sold Out

 
Patek Philippe Yellow Gold Perpetual Calendar Chronograph Watch Ref. 3970

Patek Philippe Yellow Gold Perpetual Calendar Chronograph Watch Ref. 3970

Patek Philippe Yellow Gold Perpetual Calendar Chronograph Watch Ref. 3970

$170,000 USD
 

IWC Platinum Il Destriero Scafusia Grand Complication Bracelet Watch

IWC Platinum Il Destriero Scafusia Grand Complication Bracelet Watch

"Price upon request"
 
Patek White Gold Calatrava Watch Ref. 570

Patek White Gold Calatrava Watch Ref. 570

Patek White Gold Calatrava Watch Ref. 570

Sold Out

 
Patek Philippe Rose Gold Calatrava Watch Ref. 96

Patek Philippe Rose Gold Calatrava Watch Ref. 96

Patek Philippe Rose Gold Calatrava Watch Ref. 96

Sold Out

 
Audemars Piguet Steel Royal Oak Ref. 14790st

Audemars Piguet Steel Royal Oak Ref. 14790st

Audemars Piguet Steel Royal Oak Ref. 14790st

Sold Out

 
Cartier YG Mini Tank Louis Ref. 1360 (New Arrival)

Cartier YG Mini Tank Louis Ref. 1360 (New Arrival)

Cartier YG Mini Tank Louis Ref. 1360 (New Arrival)

Sold Out

 
Cartier Paris Yellow Gold Tank Louis Watch

Cartier Paris Yellow Gold Tank Louis Watch

Cartier Paris Yellow Gold Tank Louis Watch

Sold Out

 
Rolex - Rolex Steel Datejust Ref. 16234 with Sodalite Dial - The Keystone Watches

Rolex Steel Datejust Ref. 16234 with Sodalite Dial

Rolex Steel Datejust Ref. 16234 with Sodalite Dial

Sold Out

 
Rolex Yellow Gold Cellini Watch Ref. 4934/8 with Logo Bracelet

Rolex Yellow Gold Cellini Watch Ref. 4934/8 with Logo Bracelet

Rolex Yellow Gold Cellini Watch Ref. 4934/8 with Logo Bracelet

$15,500 USD
 
Rolex White Gold Cellini Ref. 4083

Rolex White Gold Cellini Ref. 4083

Rolex White Gold Cellini Ref. 4083

$4,500 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
 
Patek Philippe White Gold Calatrava Watch Ref. 3445 in Top Condition

Patek Philippe White Gold Calatrava Watch Ref. 3445 in Top Condition

Patek Philippe White Gold Calatrava Watch Ref. 3445 in Top Condition

Sold Out

 
Patek Philippe Platinum Perpetual Calendar Chronograph Watch Ref. 5271 with Baguette Diamonds

Patek Philippe Platinum Perpetual Calendar Chronograph Watch Ref. 5271 with Baguette Diamonds

Patek Philippe Platinum Perpetual Calendar Chronograph Watch Ref. 5271 with Baguette Diamonds

"Price upon request"
 
Patek Philippe Rose Gold Perpetual Calendar Ref. 5040

Patek Philippe Rose Gold Perpetual Calendar Ref. 5040

Patek Philippe Rose Gold Perpetual Calendar Ref. 5040

Sold Out

 
Rolex Yellow Gold Day-Date Ref. 18238 in Original Condition

Rolex Yellow Gold Day-Date Ref. 18238 in Original Condition

Rolex Yellow Gold Day-Date Ref. 18238 in Original Condition

Sold Out

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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.

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