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Patek Philippe - Patek Philippe Yellow Gold Minute Repeater Ref. 3979 - The Keystone Watches

Patek Philippe Yellow Gold Minute Repeater Ref. 3979

Patek Philippe Yellow Gold Minute Repeater Ref. 3979

Sold Out

 
Patek Philippe - Patek Philippe Steel Automatic Watch Ref. 3580 - The Keystone Watches

Patek Philippe Steel Automatic Watch Ref. 3580

Patek Philippe Steel Automatic Watch Ref. 3580

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Patek Philippe - Patek Philippe Yellow Gold Calatrava Ref. 96 - The Keystone Watches

Patek Philippe Yellow Gold Calatrava Ref. 96

Patek Philippe Yellow Gold Calatrava Ref. 96

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Patek Philippe - Patek Philippe White Gold Lapis Watch Ref. 3578 - The Keystone Watches

Patek Philippe White Gold Lapis Watch Ref. 3578

Patek Philippe White Gold Lapis Watch Ref. 3578

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Patek Philippe - Patek Philippe White Gold Perpetual Calendar Chronograph Ref. 5270G-018 - The Keystone Watches

Patek Philippe White Gold Perpetual Calendar Chronograph Ref. 5270G-018

Patek Philippe White Gold Perpetual Calendar Chronograph Ref. 5270G-018

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Patek Philippe - Patek Philippe Aquanaut Automatic Watch Ref. 5060, First Series Aquanaut - The Keystone Watches

Patek Philippe Aquanaut Automatic Watch Ref. 5060, First Series Aquanaut

Patek Philippe Aquanaut Automatic Watch Ref. 5060, First Series Aquanaut

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Patek Philippe - Patek Philippe Calatrava Pilot Travel Time Ref. 5524G - The Keystone Watches

Patek Philippe Calatrava Pilot Travel Time Ref. 5524G

Patek Philippe Calatrava Pilot Travel Time Ref. 5524G

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Patek Philippe - Patek Philippe Rose Gold Calatrava Pilot Travel Time Ref. 5524 - The Keystone Watches

Patek Philippe Rose Gold Calatrava Pilot Travel Time Ref. 5524

Patek Philippe Rose Gold Calatrava Pilot Travel Time Ref. 5524

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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 Platinum Perpetual Calendar Chronograph, Ref. 5270P - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Chronograph, Ref. 5270P

Patek Philippe Platinum Perpetual Calendar Chronograph, Ref. 5270P

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

Patek Philippe Yellow Gold Nautilus Jumbo Watch Ref. 3700

Patek Philippe Yellow Gold Nautilus Jumbo Watch Ref. 3700

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

Patek Philippe Perpetual Calendar Yellow Gold Ref. 3970

Patek Philippe Perpetual Calendar Yellow Gold Ref. 3970

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Patek Philippe - Patek Philippe Platinum Perpetual Ref. 3940 with Box and Papers - The Keystone Watches

Patek Philippe Platinum Perpetual Ref. 3940 with Box and Papers

Patek Philippe Platinum Perpetual Ref. 3940 with Box and Papers

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

Patek Philippe Platinum Perpetual Calendar Chronograph Watch Ref. 5970

Patek Philippe Platinum Perpetual Calendar Chronograph Watch Ref. 5970

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

Patek Philippe Platinum Perpetual Calendar Split Seconds Chrono Ref. 5004

Patek Philippe Platinum Perpetual Calendar Split Seconds Chrono Ref. 5004

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Patek Philippe - Patek Philippe Two-Tone Jumbo Nautilus Ref. 3700 - The Keystone Watches

Patek Philippe Two-Tone Jumbo Nautilus Ref. 3700

Patek Philippe Two-Tone Jumbo Nautilus Ref. 3700

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Patek Philippe - Patek Philippe Steel Jumbo Nautilus Ref. 3700 - The Keystone Watches

Patek Philippe Steel Jumbo Nautilus Ref. 3700

Patek Philippe Steel Jumbo Nautilus Ref. 3700

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

Patek Philippe Yellow Gold Jumbo Aquanaut Watch Ref. 5065

Patek Philippe Yellow Gold Jumbo Aquanaut Watch Ref. 5065

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Patek Philippe - Patek Philippe White Gold Perpetual Calendar Watch Ref. 5320 - The Keystone Watches

Patek Philippe White Gold Perpetual Calendar Watch Ref. 5320

Patek Philippe White Gold Perpetual Calendar Watch Ref. 5320

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

Patek Philippe Platinum World Time Watch Ref. 5131

Patek Philippe Platinum World Time Watch Ref. 5131

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

Patek Philippe Yellow Gold Split Seconds Perpetual Watch Ref. 5004

Patek Philippe Yellow Gold Split Seconds Perpetual Watch Ref. 5004

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

Patek Philippe Platinum Perpetual Calendar Split Seconds Chrono Ref. 5004

Patek Philippe Platinum Perpetual Calendar Split Seconds Chrono Ref. 5004

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Patek Philippe - Patek Philippe White Gold Calatrava Ref. 3445 on White Gold Bracelet - The Keystone Watches

Patek Philippe White Gold Calatrava Ref. 3445 on White Gold Bracelet

Patek Philippe White Gold Calatrava Ref. 3445 on White Gold Bracelet

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

Patek Philippe Yellow Gold Nautilus Jumbo Watch Ref. 3700

Patek Philippe Yellow Gold Nautilus Jumbo Watch Ref. 3700

Sold Out

 
Patek Philippe - Patek Philippe Nautilus Annual Calendar Watch Ref. 5726 - The Keystone Watches

Patek Philippe Nautilus Annual Calendar Watch Ref. 5726

Patek Philippe Nautilus Annual Calendar Watch Ref. 5726

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Patek Philippe - Patek Philippe White Golden Circle Ellipse Ref. 3586 - The Keystone Watches

Patek Philippe White Golden Circle Ellipse Ref. 3586

Patek Philippe White Golden Circle Ellipse Ref. 3586

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Patek Philippe - Patek Philippe Yellow Gold Onyx Dial Ref. 3733 - The Keystone Watches

Patek Philippe Yellow Gold Onyx Dial Ref. 3733

Patek Philippe Yellow Gold Onyx Dial Ref. 3733

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Patek Philippe - Patek Philippe Steel Midsize Nautilus Watch Ref. 3900 - The Keystone Watches

Patek Philippe Steel Midsize Nautilus Watch Ref. 3900

Patek Philippe Steel Midsize Nautilus Watch Ref. 3900

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Patek Philippe - Patek Philippe White Gold Perpetual Calendar Watch Ref. 5136 - The Keystone Watches

Patek Philippe White Gold Perpetual Calendar Watch Ref. 5136

Patek Philippe White Gold Perpetual Calendar Watch Ref. 5136

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Patek Philippe - Patek Philippe White Gold Chronograph Ref. 5170, Retailed by Tiffany & Co. - The Keystone Watches

Patek Philippe White Gold Chronograph Ref. 5170, Retailed by Tiffany & Co.

Patek Philippe White Gold Chronograph Ref. 5170, Retailed by Tiffany & Co.

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Patek Philippe - Patek Philippe Rose Gold 10-Day Tourbillon Watch Ref. 5101 - The Keystone Watches

Patek Philippe Rose Gold 10-Day Tourbillon Watch Ref. 5101

Patek Philippe Rose Gold 10-Day Tourbillon Watch Ref. 5101

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Patek Philippe - Patek Philippe Yellow Gold Bracelet Watch Ref. 4241 with Iraqi Coat of Arms - The Keystone Watches

Patek Philippe Yellow Gold Bracelet Watch Ref. 4241 with Iraqi Coat of Arms

Patek Philippe Yellow Gold Bracelet Watch Ref. 4241 with Iraqi Coat of Arms

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Patek Philippe - Patek Philippe Nautilus Ref. 3800 with Black Roman Numeral Dial - The Keystone Watches

Patek Philippe Nautilus Ref. 3800 with Black Roman Numeral Dial

Patek Philippe Nautilus Ref. 3800 with Black Roman Numeral Dial

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

Patek Philippe Rose Gold World Time Watch Ref. 5110

Patek Philippe Rose Gold World Time Watch Ref. 5110

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Patek Philippe - Patek Philippe Platinum Minute Repeater Tourbillon Watch Ref. 3939 - The Keystone Watches

Patek Philippe Platinum Minute Repeater Tourbillon Watch Ref. 3939

Patek Philippe Platinum Minute Repeater Tourbillon Watch Ref. 3939

Sold Out

 
Patek Philippe - Patek Philippe Steel Nautilus Ref 5712/1A - The Keystone Watches

Patek Philippe Steel Nautilus Ref 5712/1A

Patek Philippe Steel Nautilus Ref 5712/1A

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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.

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