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Piaget - Piaget Square Polo Ref. 7131 - The Keystone Watches

Piaget Square Polo Ref. 7131

Piaget Square Polo Ref. 7131

Sold Out

 

Cartier White Gold Panther Mini Ref. WF3244F3

Cartier White Gold Panther Mini Ref. WF3244F3

Sold Out

 
Piaget - Piaget Yellow Gold Emperador Ref. 9131 - The Keystone Watches

Piaget Yellow Gold Emperador Ref. 9131

Piaget Yellow Gold Emperador Ref. 9131

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Ulysse Nardin - Ulysse Nardin Yellow Gold San Marco Ref. 131-77-9 with Cloisonne Ship Dial - The Keystone Watches

Ulysse Nardin Yellow Gold San Marco Ref. 131-77-9 with Cloisonne Ship Dial

Ulysse Nardin Yellow Gold San Marco Ref. 131-77-9 with Cloisonne Ship Dial

Sold Out

 
Cartier - Cartier Ladies White Gold Diamond Panthere Ref. WF3118FK - The Keystone Watches

Cartier Ladies White Gold Diamond Panthere Ref. WF3118FK

Cartier Ladies White Gold Diamond Panthere Ref. WF3118FK

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Gevril - Gevril Steel Tribeca Chronograph Black in New Condition - The Keystone Watches

Gevril Steel Tribeca Chronograph Black in New Condition

Gevril Steel Tribeca Chronograph Black in New Condition

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Cartier - Cartier Yellow Gold Tank Americaine Ref. W26001C9 - The Keystone Watches

Cartier Yellow Gold Tank Americaine Ref. W26001C9

Cartier Yellow Gold Tank Americaine Ref. W26001C9

Sold Out

 

Piaget White Gold Altiplano Ref. 90122 with Diamonds and Sapphires (New Arrival)

Piaget White Gold Altiplano Ref. 90122 with Diamonds and Sapphires (New Arrival)

$17,750 USD
 
Piaget - Piaget Yellow Gold Polo Ref. 15661 - The Keystone Watches

Piaget Yellow Gold Polo Ref. 15661

Piaget Yellow Gold Polo Ref. 15661

Sold Out

 
Piaget - Piaget White Gold Large Diagonal Baguette Bezel Watch with Onyx Dial 7334A6 - The Keystone Watches

Piaget White Gold Large Diagonal Baguette Bezel Watch with Onyx Dial 7334A6

Piaget White Gold Large Diagonal Baguette Bezel Watch with Onyx Dial 7334A6

$18,750 USD
 

Cartier Steel Santos Dumont Black Enamel Ref. WSSA0046

Cartier Steel Santos Dumont Black Enamel Ref. WSSA0046

Sold Out

 
Piaget - Piaget White Gold Protocole Ref. 4154 - The Keystone Watches

Piaget White Gold Protocole Ref. 4154

Piaget White Gold Protocole Ref. 4154

$3,950 USD
 
Van Cleef & Arpels - Van Cleef & Arpels Yellow Gold Tie Clip Bamboo (Objet) - The Keystone Watches

Van Cleef & Arpels Yellow Gold Tie Clip Bamboo (Objet)

Van Cleef & Arpels Yellow Gold Tie Clip Bamboo (Objet)

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Cartier - Cartier Rose Gold Baignoire Allongee Ref. WGBA0009 - The Keystone Watches

Cartier Rose Gold Baignoire Allongee Ref. WGBA0009

Cartier Rose Gold Baignoire Allongee Ref. WGBA0009

Sold Out

 
Cartier - Cartier Yellow Gold Santos Dumont Ref. 821053 - The Keystone Watches

Cartier Yellow Gold Santos Dumont Ref. 821053

Cartier Yellow Gold Santos Dumont Ref. 821053

Sold Out

 
Cartier Vendome 78090 18k YG Excellent Condition with Very Minor Wear Unisex 18k YG White with Roman Numerals 33 mm Manual Blue Watch Only

Cartier Yellow Gold Vendome Ref. 78090

Cartier Yellow Gold Vendome Ref. 78090

Sold Out

 
Cartier - Cartier Yellow Gold Santos Carree Auto Ref. 2960 in Superb Condition (New Arrival) - The Keystone Watches

Cartier Yellow Gold Santos Carree Auto Ref. 2960 in Superb Condition (New Arrival)

Cartier Yellow Gold Santos Carree Auto Ref. 2960 in Superb Condition (New Arrival)

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Cartier Yellow Gold Vendome Watch Ref. 86402352 with Original Sapphires and Diamonds

Cartier Yellow Gold Vendome Watch Ref. 86402352 with Original Sapphires and Diamonds

Cartier Yellow Gold Vendome Watch Ref. 86402352 with Original Sapphires and Diamonds

Sold Out

 
Breguet - Breguet Yellow Gold Classique Watch Ref. 3210 - The Keystone Watches

Breguet Yellow Gold Classique Watch Ref. 3210

Breguet Yellow Gold Classique Watch Ref. 3210

Sold Out

 
Jaeger LeCoultre White Gold Mystery Ref. 7673

Jaeger LeCoultre White Gold Mystery Ref. 7673

Jaeger LeCoultre White Gold Mystery Ref. 7673

$13,500 USD
 
Piaget - Piaget White Gold Bracelet Watch with Onyx and Diamond Dial - The Keystone Watches

Piaget White Gold Bracelet Watch with Onyx and Diamond Dial

Piaget White Gold Bracelet Watch with Onyx and Diamond Dial

$10,500 USD
 

Cartier Panthere White Gold Original Diamond Panthere Ref. WF3091F3

Cartier Panthere White Gold Original Diamond Panthere Ref. WF3091F3

Sold Out

 
Piaget - Piaget White Gold Dancer with Opal Onyx and Diamond Dial Ref. 4132K81 - The Keystone Watches

Piaget White Gold Dancer with Opal Onyx and Diamond Dial Ref. 4132K81

Piaget White Gold Dancer with Opal Onyx and Diamond Dial Ref. 4132K81

$9,800 USD
 
Piaget White Gold Mechanical Watch Ref. 9771D2 with Onyx and Diamond

Piaget White Gold Mechanical Watch Ref. 9771D2 with Onyx and Diamond

Piaget White Gold Mechanical Watch Ref. 9771D2 with Onyx and Diamond

Sold Out

 
Piaget - Piaget Yellow Gold Polo Ref. 15564 with Rare Black Dial - The Keystone Watches

Piaget Yellow Gold Polo Ref. 15564 with Rare Black Dial

Piaget Yellow Gold Polo Ref. 15564 with Rare Black Dial

Sold Out

 
Cartier - Cartier Two-Tone Vendome Ref. 78209 - The Keystone Watches

Cartier Two-Tone Vendome Ref. 78209

Cartier Two-Tone Vendome Ref. 78209

$7,500 USD
 
Cartier - Cartier Yellow Gold Ceinture Ref. 78099 - The Keystone Watches

Cartier Yellow Gold Ceinture Ref. 78099

Cartier Yellow Gold Ceinture Ref. 78099

Sold Out

 
Cartier - Cartier Yellow Gold Tank Louis Ref. 1612 on Yellow Gold Bracelet - The Keystone Watches

Cartier Yellow Gold Tank Louis Ref. 1612 on Yellow Gold Bracelet

Cartier Yellow Gold Tank Louis Ref. 1612 on Yellow Gold Bracelet

$26,500 USD
 
Cartier - Cartier Yellow Gold Jumbo Gondole Watch Ref. 97050 - The Keystone Watches

Cartier Yellow Gold Jumbo Gondole Watch Ref. 97050

Cartier Yellow Gold Jumbo Gondole Watch Ref. 97050

Sold Out

 
Richard Mille - Richard Mille Olympic-Worn, Yohan Blake Tourbillon RM38 Prototype - The Keystone Watches

Richard Mille Olympic-Worn, Yohan Blake Tourbillon RM38 Prototype

Richard Mille Olympic-Worn, Yohan Blake Tourbillon RM38 Prototype

$1,500,000 USD
 
Franck Muller - Franck Muller Platinum Rotor Calendar Ref. 3801S6Q - The Keystone Watches

Franck Muller Platinum Rotor Calendar Ref. 3801S6Q

Franck Muller Platinum Rotor Calendar Ref. 3801S6Q

Sold Out

 
Bulgari - Bulgari Tri Color Tubogas Ref. BB1927 - The Keystone Watches

Bulgari Tri Color Tubogas Ref. BB1927

Bulgari Tri Color Tubogas Ref. BB1927

Sold Out

 

Piaget White Gold Mechanical Watch Ref. 9775A6 with Lapis, Diamond and Onyx Dial

Piaget White Gold Mechanical Watch Ref. 9775A6 with Lapis, Diamond and Onyx Dial

Sold Out

 
Piaget - Piaget White Gold Round Watch Ref. 9066D23 with Opal, Onyx and Diamond Dial - The Keystone Watches

Piaget White Gold Round Watch Ref. 9066D23 with Opal, Onyx and Diamond Dial

Piaget White Gold Round Watch Ref. 9066D23 with Opal, Onyx and Diamond Dial

Sold Out

 
A. Lange & Sohne - A Lange and Sohne Platinum Lange 1 Ref. 101.025 - The Keystone Watches

A Lange and Sohne Platinum Lange 1 Ref. 101.025

A Lange and Sohne Platinum Lange 1 Ref. 101.025

Sold Out

 
IWC - IWC White Gold Sapphire and Diamond Cover Watch - The Keystone Watches

IWC White Gold Sapphire and Diamond Cover Watch

IWC White Gold Sapphire and Diamond Cover Watch

$7,800 USD
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New Arrivals Preview
 
Gerald Genta Fantasy Retro M.10 MOP Mickey Mouse for Hong Kong Disney Watch (New Arrival)

Gerald Genta Fantasy Retro M.10 MOP Mickey Mouse for Hong Kong Disney Watch (New Arrival)

Gerald Genta Fantasy Retro M.10 MOP Mickey Mouse for Hong Kong Disney Watch (New Arrival)

$23,750 USD
 
Vacheron Constantin - Vacheron Constantin Yellow Gold Grand Complication Pocket Watch (NEW ARRIVAL) - The Keystone Watches

Vacheron Constantin Yellow Gold Grand Complication Pocket Watch (NEW ARRIVAL)

Vacheron Constantin Yellow Gold Grand Complication Pocket Watch (NEW ARRIVAL)

$155,000 USD
 
Patek Philippe Steel Automatic UFO Ref. 3580 (New Arrival)

Patek Philippe Steel Automatic UFO Ref. 3580 (New Arrival)

Patek Philippe Steel Automatic UFO Ref. 3580 (New Arrival)

$13,250 USD
 
Patek Philiipe Rose Gold Calatrava Watch Ref. 3796 (New Arrival)

Patek Philiipe Rose Gold Calatrava Watch Ref. 3796 (New Arrival)

Patek Philiipe Rose Gold Calatrava Watch Ref. 3796 (New Arrival)

$16,500 USD
 

Piaget White Gold Altiplano Ref. 90122 with Diamonds and Sapphires (New Arrival)

Piaget White Gold Altiplano Ref. 90122 with Diamonds and Sapphires (New Arrival)

$17,750 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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