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Patek Philippe - Patek Philippe Yellow Gold Calatrava Watch Ref. 5000 - The Keystone Watches

Patek Philippe Yellow Gold Calatrava Watch Ref. 5000

Patek Philippe Yellow Gold Calatrava Watch Ref. 5000

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

Patek Philippe Platinum Perpetual Calendar Watch Ref. 5140

Patek Philippe Platinum Perpetual Calendar Watch Ref. 5140

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Watch Ref. 5970 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Watch Ref. 5970

Patek Philippe Platinum Perpetual Calendar Watch Ref. 5970

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Patek Philippe - Patek Philippe Ellipse White Gold Retailed by Gubelin Ref. 3589 - The Keystone Watches

Patek Philippe Ellipse White Gold Retailed by Gubelin Ref. 3589

Patek Philippe Ellipse White Gold Retailed by Gubelin Ref. 3589

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Patek Philippe Steel Aquanaut First Series Watch Ref. 5060

Patek Philippe Steel Aquanaut First Series Watch Ref. 5060

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Patek Philippe - Patek Philippe Steel Calatrava Ref. 3509 - The Keystone Watches

Patek Philippe Steel Calatrava Ref. 3509

Patek Philippe Steel Calatrava Ref. 3509

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Patek Philippe - Patek Philippe Yellow Gold Square Watch Ref. 5 from 1920 - The Keystone Watches

Patek Philippe Yellow Gold Square Watch Ref. 5 from 1920

Patek Philippe Yellow Gold Square Watch Ref. 5 from 1920

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Split Seconds Chronograph Ref. 5004 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Split Seconds Chronograph Ref. 5004

Patek Philippe Platinum Perpetual Calendar Split Seconds Chronograph Ref. 5004

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Patek Philippe - Patek Philippe White Gold Onyx Watch Ref. 3733 - The Keystone Watches

Patek Philippe White Gold Onyx Watch Ref. 3733

Patek Philippe White Gold Onyx Watch Ref. 3733

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

Patek Philippe Yellow Gold Pocket Watch

Patek Philippe Yellow Gold Pocket Watch

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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. 3893 - The Keystone Watches

Patek Philippe Yellow Gold Calatrava Watch Ref. 3893

Patek Philippe Yellow Gold Calatrava Watch Ref. 3893

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Patek Philippe White Gold Baguette Diamond Watch Ref. 4260

Patek Philippe White Gold Baguette Diamond Watch Ref. 4260

Sold Out

 

Patek Philippe Yellow Gold Diamond & Ruby Watch Ref. 3968

Patek Philippe Yellow Gold Diamond & Ruby Watch Ref. 3968

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

Patek Philippe Steel Tonneau Watch Ref. 3579

Patek Philippe Steel Tonneau Watch Ref. 3579

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Patek Philippe - Patek Philippe Yellow Gold Mechanical Bracelet Watch Ref. 3528 - The Keystone Watches

Patek Philippe Yellow Gold Mechanical Bracelet Watch Ref. 3528

Patek Philippe Yellow Gold Mechanical Bracelet Watch Ref. 3528

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Patek Philippe - Patek Philippe White Gold Diamond & Onyx Watch Ref. 3625 - The Keystone Watches

Patek Philippe White Gold Diamond & Onyx Watch Ref. 3625

Patek Philippe White Gold Diamond & Onyx Watch Ref. 3625

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

Patek Philippe Platinum Perpetual Calendar Chronograph Watch Ref. 3970

Patek Philippe Platinum Perpetual Calendar Chronograph Watch Ref. 3970

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Patek Philippe - Patek Philippe Yellow Gold Calatrava Watch Ref. 3919 - The Keystone Watches

Patek Philippe Yellow Gold Calatrava Watch Ref. 3919

Patek Philippe Yellow Gold Calatrava Watch Ref. 3919

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Patek Philippe - Patek Philippe Yellow Gold Calatrava Ref. 3562 - The Keystone Watches

Patek Philippe Yellow Gold Calatrava Ref. 3562

Patek Philippe Yellow Gold Calatrava Ref. 3562

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Patek Philippe - Patek Philippe Platinum Advanced Research Ref. 5550 - The Keystone Watches

Patek Philippe Platinum Advanced Research Ref. 5550

Patek Philippe Platinum Advanced Research Ref. 5550

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Patek Philippe Yellow Gold Nautilus Watch Ref. 3800

Patek Philippe Yellow Gold Nautilus Watch Ref. 3800

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Patek Philippe - Patek Philippe Rose Gold Bracelet Watch Retailed by Freccero (NEW ARRIVAL) - The Keystone Watches

Patek Philippe Rose Gold Bracelet Watch Retailed by Freccero (NEW ARRIVAL)

Patek Philippe Rose Gold Bracelet Watch Retailed by Freccero (NEW ARRIVAL)

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

Patek Philippe White Gold Perpetual Calendar Watch Ref. 5140

Patek Philippe White Gold Perpetual Calendar Watch Ref. 5140

Sold Out

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

Patek Philippe Rose Gold Perpetual Calendar Watch Ref. 3940

Patek Philippe Rose Gold Perpetual Calendar Watch Ref. 3940

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Patek Philippe - Patek Philippe White Gold World Time Watch Ref. 5110G - The Keystone Watches

Patek Philippe White Gold World Time Watch Ref. 5110G

Patek Philippe White Gold World Time Watch Ref. 5110G

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Patek Philippe - Patek Philippe Platinum World Time Watch Ref. 5130 - The Keystone Watches

Patek Philippe Platinum World Time Watch Ref. 5130

Patek Philippe Platinum World Time Watch Ref. 5130

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Patek Philippe - Patek Philippe Yellow Gold Calatrava, Ref. 2526 Retailed by Serpico Y Laino - The Keystone Watches

Patek Philippe Yellow Gold Calatrava, Ref. 2526 Retailed by Serpico Y Laino

Patek Philippe Yellow Gold Calatrava, Ref. 2526 Retailed by Serpico Y Laino

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Patek Philippe - Patek Philippe White Gold Lapis Watch Ref. 3733 - The Keystone Watches

Patek Philippe White Gold Lapis Watch Ref. 3733

Patek Philippe White Gold Lapis Watch Ref. 3733

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Patek Philippe - Patek Philippe Yellow Gold World Time Watch Ref. 5110 - The Keystone Watches

Patek Philippe Yellow Gold World Time Watch Ref. 5110

Patek Philippe Yellow Gold World Time Watch Ref. 5110

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Patek Philippe - Patek Philippe White Gold Perpetual Calendar Watch Ref. 5140 (NEW ARRIVAL) - The Keystone Watches

Patek Philippe White Gold Perpetual Calendar Watch Ref. 5140 (NEW ARRIVAL)

Patek Philippe White Gold Perpetual Calendar Watch Ref. 5140 (NEW ARRIVAL)

Sold Out

 
Patek Philippe - Patek Philippe Steel Nautilus Ref. 3710 - The Keystone Watches

Patek Philippe Steel Nautilus Ref. 3710

Patek Philippe Steel Nautilus Ref. 3710

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Patek Philippe - Patek Philippe Rose Gold Aquanaut Watch Ref. 5164 - The Keystone Watches

Patek Philippe Rose Gold Aquanaut Watch Ref. 5164

Patek Philippe Rose Gold Aquanaut Watch Ref. 5164

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Patek Philippe - Patek Philippe White Gold Annual Calendar Regulator Watch Ref. 5235 - The Keystone Watches

Patek Philippe White Gold Annual Calendar Regulator Watch Ref. 5235

Patek Philippe White Gold Annual Calendar Regulator Watch Ref. 5235

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Patek Philippe - Patek Philippe Steel Aquanaut Watch Ref. 5066 - The Keystone Watches

Patek Philippe Steel Aquanaut Watch Ref. 5066

Patek Philippe Steel Aquanaut Watch Ref. 5066

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Patek Philippe - Patek Philippe Steel Automatic Backwinbd Watch Ref. 3580 with Bracelet and Papers - The Keystone Watches

Patek Philippe Steel Automatic Backwinbd Watch Ref. 3580 with Bracelet and Papers

Patek Philippe Steel Automatic Backwinbd Watch Ref. 3580 with Bracelet and Papers

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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"
 
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
 
Patek Philiipe White Gold Calatrava Watch Ref. 3919 (New Arrival)

Patek Philiipe White Gold Calatrava Watch Ref. 3919 (New Arrival)

Patek Philiipe White Gold Calatrava Watch Ref. 3919 (New Arrival)

$15,000 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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