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Cartier - Cartier Yellow Gold Pasha Perpetual Calendar Minute Repeater Watch - The Keystone Watches

Cartier Yellow Gold Pasha Perpetual Calendar Minute Repeater Watch

Cartier Yellow Gold Pasha Perpetual Calendar Minute Repeater Watch

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Minute Repeater Watch Ref. 5074, One of Only Two Known - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Minute Repeater Watch Ref. 5074, One of Only Two Known

Patek Philippe Platinum Perpetual Calendar Minute Repeater Watch Ref. 5074, One of Only Two Known

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Patek Philippe - Patek Philippe Platinum Chronograph Watch Ref. 5070 - The Keystone Watches

Patek Philippe Platinum Chronograph Watch Ref. 5070

Patek Philippe Platinum Chronograph Watch Ref. 5070

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Patek Philippe - Patek Philippe Yellow Gold Perpetual Hand-Engraved Watch Ref. 5160 - The Keystone Watches

Patek Philippe Yellow Gold Perpetual Hand-Engraved Watch Ref. 5160

Patek Philippe Yellow Gold Perpetual Hand-Engraved Watch Ref. 5160

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Audemars Piguet - Audemars Piguet Royal Oak Platinum Skeletonized Watch, Ref. 15203 - The Keystone Watches

Audemars Piguet Royal Oak Platinum Skeletonized Watch, Ref. 15203

Audemars Piguet Royal Oak Platinum Skeletonized Watch, Ref. 15203

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Patek Philippe - Patek Philippe Yellow Gold Perpetual Calendar Chronograph Watch Ref. 5970 - The Keystone Watches

Patek Philippe Yellow Gold Perpetual Calendar Chronograph Watch Ref. 5970

Patek Philippe Yellow Gold Perpetual Calendar Chronograph Watch Ref. 5970

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Audemars Piguet - Audemars Piguet Rose Gold Royal Oak Chrono Watch Ref. 26320 - The Keystone Watches

Audemars Piguet Rose Gold Royal Oak Chrono Watch Ref. 26320

Audemars Piguet Rose Gold Royal Oak Chrono Watch Ref. 26320

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

Patek Philippe Platinum World Time Cloisonne Watch Ref. 5131

Patek Philippe Platinum World Time Cloisonne Watch Ref. 5131

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Audemars Piguet - Audemars Piguet Rose Gold Nick Faldo Royal Oak Watch Ref. 14790 - The Keystone Watches

Audemars Piguet Rose Gold Nick Faldo Royal Oak Watch Ref. 14790

Audemars Piguet Rose Gold Nick Faldo Royal Oak Watch Ref. 14790

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Audemars Piguet - Audemars Piguet Skeletonized Emerald Diamond Watch, Piece Unique - The Keystone Watches

Audemars Piguet Skeletonized Emerald Diamond Watch, Piece Unique

Audemars Piguet Skeletonized Emerald Diamond Watch, Piece Unique

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Vacheron Constantin - Vacheron Constantin Steel Watch Ref. 6562 - The Keystone Watches

Vacheron Constantin Steel Watch Ref. 6562

Vacheron Constantin Steel Watch Ref. 6562

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Richard Mille - Richard Mille Skeleton Rafael Nadal Ref. RM35-02 - The Keystone Watches

Richard Mille Skeleton Rafael Nadal Ref. RM35-02

Richard Mille Skeleton Rafael Nadal Ref. RM35-02

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Rolex - Rolex White Gold Submariner Diamond Sapphire Watch Ref. 116659 - The Keystone Watches

Rolex White Gold Submariner Diamond Sapphire Watch Ref. 116659

Rolex White Gold Submariner Diamond Sapphire Watch Ref. 116659

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Audemars Piguet - Audemars Piguet Tantalum Royal Oak Championship Watch - The Keystone Watches

Audemars Piguet Tantalum Royal Oak Championship Watch

Audemars Piguet Tantalum Royal Oak Championship Watch

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

Patek Philippe Perpetual Calendar Automatic Watch Ref. 3940

Patek Philippe Perpetual Calendar Automatic Watch Ref. 3940

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Patek Philippe - Patek Philippe Rose Gold Minute Repeater Tourbillon Ref. 5339R - The Keystone Watches

Patek Philippe Rose Gold Minute Repeater Tourbillon Ref. 5339R

Patek Philippe Rose Gold Minute Repeater Tourbillon Ref. 5339R

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Patek Philippe - Patek Philippe Rose Gold Perpetual Calendar Chronograph Watch Ref. 5970 - The Keystone Watches

Patek Philippe Rose Gold Perpetual Calendar Chronograph Watch Ref. 5970

Patek Philippe Rose Gold Perpetual Calendar Chronograph Watch Ref. 5970

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Patek Philippe - Patek Philippe White Gold Perpetual Calendar Chronograph Ref. 5970 - The Keystone Watches

Patek Philippe White Gold Perpetual Calendar Chronograph Ref. 5970

Patek Philippe White Gold Perpetual Calendar Chronograph Ref. 5970

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Patek Philippe - Patek Philippe Yellow Gold Perpetual Calendar Chronograph Watch Ref. 5970 - The Keystone Watches

Patek Philippe Yellow Gold Perpetual Calendar Chronograph Watch Ref. 5970

Patek Philippe Yellow Gold Perpetual Calendar Chronograph Watch Ref. 5970

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Vacheron Constantin - Vacheron Constantin White Gold Automatic Power Reserve Watch Ref. 47201 - The Keystone Watches

Vacheron Constantin White Gold Automatic Power Reserve Watch Ref. 47201

Vacheron Constantin White Gold Automatic Power Reserve Watch Ref. 47201

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Audemars Piguet - Audemars Piguet Yellow Gold Royal Oak Automatic Watch Ref. 14790 - The Keystone Watches

Audemars Piguet Yellow Gold Royal Oak Automatic Watch Ref. 14790

Audemars Piguet Yellow Gold Royal Oak Automatic Watch Ref. 14790

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Rolex - Rolex GMT-Master II Ceramic Pepsi Watch Ref. 126710 - The Keystone Watches

Rolex GMT-Master II Ceramic Pepsi Watch Ref. 126710

Rolex GMT-Master II Ceramic Pepsi Watch Ref. 126710

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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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