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Patek Philippe - Patek Philippe White Gold Diamond Watch - The Keystone Watches

Patek Philippe White Gold Diamond Watch

Patek Philippe White Gold Diamond Watch

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Patek Philippe - Patek Philippe Steel Watch Ref. 3579 - The Keystone Watches

Patek Philippe Steel Watch Ref. 3579

Patek Philippe Steel Watch Ref. 3579

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Patek Philippe - Patek Philippe White Gold Strap Watch, Ref. 3671 - The Keystone Watches

Patek Philippe White Gold Strap Watch, Ref. 3671

Patek Philippe White Gold Strap Watch, Ref. 3671

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Patek Philippe - Patek Philippe Yellow Gold Aquanaut Watch - The Keystone Watches

Patek Philippe Yellow Gold Aquanaut Watch

Patek Philippe Yellow Gold Aquanaut Watch

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Patek Philippe - Patek Philippe Platinum Annual Calendar Power Reserve Watch Ref. 5056 - The Keystone Watches

Patek Philippe Platinum Annual Calendar Power Reserve Watch Ref. 5056

Patek Philippe Platinum Annual Calendar Power Reserve Watch Ref. 5056

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Patek Philippe - Patek Philippe Yellow Gold Chronograph Watch Ref. 5070 - The Keystone Watches

Patek Philippe Yellow Gold Chronograph Watch Ref. 5070

Patek Philippe Yellow Gold Chronograph Watch Ref. 5070

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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 Steel Nautilus Watch Ref. 3800 with Original Box and Papers - The Keystone Watches

Patek Philippe Steel Nautilus Watch Ref. 3800 with Original Box and Papers

Patek Philippe Steel Nautilus Watch Ref. 3800 with Original Box and Papers

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Patek Philippe - Patek Philippe Yellow Gold Diamond & Emerald Watch - The Keystone Watches

Patek Philippe Yellow Gold Diamond & Emerald Watch

Patek Philippe Yellow Gold Diamond & Emerald Watch

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Patek Philippe - Patek Philippe Yellow Gold Onyx Diamond Watch - The Keystone Watches

Patek Philippe Yellow Gold Onyx Diamond Watch

Patek Philippe Yellow Gold Onyx Diamond Watch

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Patek Philippe - Patek Philippe White Gold Bracelet Watch, Retailed by Cartier - The Keystone Watches

Patek Philippe White Gold Bracelet Watch, Retailed by Cartier

Patek Philippe White Gold Bracelet Watch, Retailed by Cartier

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Patek Philippe - Patek Philippe Yellow Gold Onyx Watch, Ref. 3729 - The Keystone Watches

Patek Philippe Yellow Gold Onyx Watch, Ref. 3729

Patek Philippe Yellow Gold Onyx Watch, Ref. 3729

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Patek Philippe - Patek Philippe Yellow Gold Diamond Coral Bracelet Watch Ref. 4195/1 - The Keystone Watches

Patek Philippe Yellow Gold Diamond Coral Bracelet Watch Ref. 4195/1

Patek Philippe Yellow Gold Diamond Coral Bracelet Watch Ref. 4195/1

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

Patek Philippe White Gold Perpetual Calendar Chronograph Watch Ref. 5970

Patek Philippe White Gold Perpetual Calendar Chronograph Watch Ref. 5970

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Patek Philippe - Patek Philippe Yellow Gold Nautilus Diamond Jumbo Watch Ref. 3700 - The Keystone Watches

Patek Philippe Yellow Gold Nautilus Diamond Jumbo Watch Ref. 3700

Patek Philippe Yellow Gold Nautilus Diamond Jumbo Watch Ref. 3700

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Patek Philippe - Patek Philippe White Gold World Time Watch Ref. 5130, Shanghai Edition - The Keystone Watches

Patek Philippe White Gold World Time Watch Ref. 5130, Shanghai Edition

Patek Philippe White Gold World Time Watch Ref. 5130, Shanghai Edition

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Patek Philippe - Patek Philippe Platinum Minute Repeater Watch Ref. 5078 - The Keystone Watches

Patek Philippe Platinum Minute Repeater Watch Ref. 5078

Patek Philippe Platinum Minute Repeater Watch Ref. 5078

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Patek Philippe - Patek Philippe Platinum Split-Seconds Chronograph Watch Ref. 5370 - The Keystone Watches

Patek Philippe Platinum Split-Seconds Chronograph Watch Ref. 5370

Patek Philippe Platinum Split-Seconds Chronograph Watch Ref. 5370

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Patek Philippe - Patek Philippe Yellow Gold Perpetual Calendar Watch Ref. 5140 - The Keystone Watches

Patek Philippe Yellow Gold Perpetual Calendar Watch Ref. 5140

Patek Philippe Yellow Gold Perpetual Calendar Watch Ref. 5140

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Patek Philippe - Patek Philippe Yellow Gold Calatrava Watch Ref. 2526 - The Keystone Watches

Patek Philippe Yellow Gold Calatrava Watch Ref. 2526

Patek Philippe Yellow Gold Calatrava Watch Ref. 2526

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Patek Philippe - Patek Philippe White Gold Perpetual Calendar Watch Ref. 3941 - The Keystone Watches

Patek Philippe White Gold Perpetual Calendar Watch Ref. 3941

Patek Philippe White Gold Perpetual Calendar Watch Ref. 3941

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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 Nautilus Watch Ref. 3800 - The Keystone Watches

Patek Philippe Yellow Gold Nautilus Watch Ref. 3800

Patek Philippe Yellow Gold Nautilus Watch Ref. 3800

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Patek Philippe - Patek Philippe White Gold Bracelet Watch Ref. 3570 - The Keystone Watches

Patek Philippe White Gold Bracelet Watch Ref. 3570

Patek Philippe White Gold Bracelet Watch Ref. 3570

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Chrono Baguette Diamond Watch Ref. 5971 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Chrono Baguette Diamond Watch Ref. 5971

Patek Philippe Platinum Perpetual Calendar Chrono Baguette Diamond Watch Ref. 5971

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Patek Philippe - Patek Philippe Yellow Gold Perpetual Calendar Chronograph Watch Ref. 3970 - The Keystone Watches

Patek Philippe Yellow Gold Perpetual Calendar Chronograph Watch Ref. 3970

Patek Philippe Yellow Gold Perpetual Calendar Chronograph Watch Ref. 3970

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Chrono Ruby Watch Ref. 5271 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Chrono Ruby Watch Ref. 5271

Patek Philippe Platinum Perpetual Calendar Chrono Ruby Watch Ref. 5271

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Chrono Sapphire Watch Ref. 5271 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Chrono Sapphire Watch Ref. 5271

Patek Philippe Platinum Perpetual Calendar Chrono Sapphire Watch Ref. 5271

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Patek Philippe - Patek Philippe Rose Gold Perpetual Calendar Split Seconds Watch Ref. 5004 - The Keystone Watches

Patek Philippe Rose Gold Perpetual Calendar Split Seconds Watch Ref. 5004

Patek Philippe Rose Gold Perpetual Calendar Split Seconds Watch Ref. 5004

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Patek Philippe - Patek Philippe Yellow Gold Annual Calendar Watch Ref. 5035 - The Keystone Watches

Patek Philippe Yellow Gold Annual Calendar Watch Ref. 5035

Patek Philippe Yellow Gold Annual Calendar Watch Ref. 5035

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Patek Philippe - Patek Philippe White Gold Nautilus Moonphase Watch Ref. 5712 - The Keystone Watches

Patek Philippe White Gold Nautilus Moonphase Watch Ref. 5712

Patek Philippe White Gold Nautilus Moonphase Watch Ref. 5712

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Patek Philippe - Patek Philippe Aquanaut Jumbo Watch Ref. 5065 - The Keystone Watches

Patek Philippe Aquanaut Jumbo Watch Ref. 5065

Patek Philippe Aquanaut Jumbo Watch Ref. 5065

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Patek Philippe - Patek Philippe Yellow Gold World Time Watch Ref. 5110, with Original Box and Papers - The Keystone Watches

Patek Philippe Yellow Gold World Time Watch Ref. 5110, with Original Box and Papers

Patek Philippe Yellow Gold World Time Watch Ref. 5110, with Original Box and Papers

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Patek Philippe - Patek Philippe Aquanaut Jumbo Automatic Watch Ref. 5167 - The Keystone Watches

Patek Philippe Aquanaut Jumbo Automatic Watch Ref. 5167

Patek Philippe Aquanaut Jumbo Automatic Watch Ref. 5167

Sold Out

 
Patek Philippe - Patek Philippe White Gold Annual Calendar Chronograph Watch Ref. 5960 - The Keystone Watches

Patek Philippe White Gold Annual Calendar Chronograph Watch Ref. 5960

Patek Philippe White Gold Annual Calendar Chronograph Watch Ref. 5960

Sold Out

 
Patek Philippe - Patek Philippe Rose Gold Perpetual Chronograph Split Seconds Watch Ref. 5204 - The Keystone Watches

Patek Philippe Rose Gold Perpetual Chronograph Split Seconds Watch Ref. 5204

Patek Philippe Rose Gold Perpetual Chronograph Split Seconds Watch Ref. 5204

Sold Out

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New Arrivals Preview
 
Cartier Platinum Tank A Guichet Ref. WGTA0236, 2025 Edition (New Arrival)

Cartier Platinum Tank A Guichet Ref. WGTA0236, 2025 Edition (New Arrival)

Cartier Platinum Tank A Guichet Ref. WGTA0236, 2025 Edition (New Arrival)

"Price upon request"
 
Audemars Piguet Yellow Gold Coin Watch (New Arrival)

Audemars Piguet Yellow Gold Coin Watch (New Arrival)

Audemars Piguet Yellow Gold Coin Watch (New Arrival)

$9,500 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
 
Rolex Yellow Gold Day-Date Watch Ref. 1803 with Claw Dial (New Arrival)

Rolex Yellow Gold Day-Date Watch Ref. 1803 with Claw Dial (New Arrival)

Rolex Yellow Gold Day-Date Watch Ref. 1803 with Claw Dial (New Arrival)

$18,750 USD
 
Boucheron - Boucheron Yellow Gold Invisible Set Sapphire Watch (New Arrival) - The Keystone Watches

Boucheron Yellow Gold Invisible Set Sapphire Watch (New Arrival)

Boucheron Yellow Gold Invisible Set Sapphire Watch (New Arrival)

$9,500 USD
 
Rolex - Rolex Yellow Gold Cellini Watch Ref. 4014/8 with Orange Dial (New Arrival) - The Keystone Watches

Rolex Yellow Gold Cellini Watch Ref. 4014/8 with Orange Dial (New Arrival)

Rolex Yellow Gold Cellini Watch Ref. 4014/8 with Orange Dial (New Arrival)

$7,500 USD
 
Rolex Steel Submariner Ref. 5513 with Pumkin Lume (New Arrival)

Rolex Steel Submariner Ref. 5513 with Pumkin Lume (New Arrival)

Rolex Steel Submariner Ref. 5513 with Pumkin Lume (New Arrival)

$15,500 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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