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Patek Philippe - Patek Philippe Rose Gold Perpetual Calendar Minute Repeater Watch Ref. 5013 - The Keystone Watches

Patek Philippe Rose Gold Perpetual Calendar Minute Repeater Watch Ref. 5013

Patek Philippe Rose Gold Perpetual Calendar Minute Repeater Watch Ref. 5013

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Patek Philippe - Patek Philippe Platinum Perpetual Split Seconds Chrono Watch Ref. 5204 - The Keystone Watches

Patek Philippe Platinum Perpetual Split Seconds Chrono Watch Ref. 5204

Patek Philippe Platinum Perpetual Split Seconds Chrono Watch Ref. 5204

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

Patek Philippe Rose Gold Annual Calendar Watch Ref. 5035R

Patek Philippe Rose Gold Annual Calendar Watch Ref. 5035R

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

Patek Philippe Rose Gold Perpetual Calendar Chrono Watch Ref. 5970

Patek Philippe Rose Gold Perpetual Calendar Chrono Watch Ref. 5970

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Patek Philippe - Patek Philippe White Gold Calatrava Watch Ref. 570 - The Keystone Watches

Patek Philippe White Gold Calatrava Watch Ref. 570

Patek Philippe White Gold Calatrava Watch Ref. 570

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

Patek Philippe Yellow Gold Perpetual Calendar Watch Ref. 3940J

Patek Philippe Yellow Gold Perpetual Calendar Watch Ref. 3940J

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Patek Philippe - Patek Philippe Rose Gold Calatrava Retailed by Serpico y Laino Ref. 570 - The Keystone Watches

Patek Philippe Rose Gold Calatrava Retailed by Serpico y Laino Ref. 570

Patek Philippe Rose Gold Calatrava Retailed by Serpico y Laino Ref. 570

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Patek Philippe - Patek Philippe Yellow Gold Calatrava Automatic Watch Ref. 3514 - The Keystone Watches

Patek Philippe Yellow Gold Calatrava Automatic Watch Ref. 3514

Patek Philippe Yellow Gold Calatrava Automatic Watch Ref. 3514

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Patek Philippe - Patek Philippe White Gold Automatic Watch Ref. 3588/1 with Certificate - The Keystone Watches

Patek Philippe White Gold Automatic Watch Ref. 3588/1 with Certificate

Patek Philippe White Gold Automatic Watch Ref. 3588/1 with Certificate

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Patek Philippe - Patek Philippe White Gold Calatrava Watch Ref. 570 - The Keystone Watches

Patek Philippe White Gold Calatrava Watch Ref. 570

Patek Philippe White Gold Calatrava Watch Ref. 570

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Patek Philippe - Patek Philippe Platinum and Gold Pocket Watch with Original Box and Papers - The Keystone Watches

Patek Philippe Platinum and Gold Pocket Watch with Original Box and Papers

Patek Philippe Platinum and Gold Pocket Watch with Original Box and Papers

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Patek Philippe - Patek Philippe Aquanaut Steel Blue Ref. 5066/1a - The Keystone Watches

Patek Philippe Aquanaut Steel Blue Ref. 5066/1a

Patek Philippe Aquanaut Steel Blue Ref. 5066/1a

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Patek Philippe - Patek Philippe Steel 1989 Anniversary Watch Ref. 3718 - The Keystone Watches

Patek Philippe Steel 1989 Anniversary Watch Ref. 3718

Patek Philippe Steel 1989 Anniversary Watch Ref. 3718

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Patek Philippe - Patek Philippe White Gold Rectangular Baguette Diamond Watch Ref. 3540 - The Keystone Watches

Patek Philippe White Gold Rectangular Baguette Diamond Watch Ref. 3540

Patek Philippe White Gold Rectangular Baguette Diamond Watch Ref. 3540

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Patek Philippe - Patek Philippe Platinum Minute Repeater Perpetual Calendar Watch Ref. 5216 - The Keystone Watches

Patek Philippe Platinum Minute Repeater Perpetual Calendar Watch Ref. 5216

Patek Philippe Platinum Minute Repeater Perpetual Calendar Watch Ref. 5216

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Patek Philippe - Patek Philippe White Gold Minute Repeating Perpetual Ref. 5213 - The Keystone Watches

Patek Philippe White Gold Minute Repeating Perpetual Ref. 5213

Patek Philippe White Gold Minute Repeating Perpetual Ref. 5213

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

Patek Philippe Stainless Steel Automatic Watch Ref. 3580

Patek Philippe Stainless Steel Automatic Watch Ref. 3580

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Patek Philippe - Patek Philippe Calatrava Rose Gold Ref. 3425R - The Keystone Watches

Patek Philippe Calatrava Rose Gold Ref. 3425R

Patek Philippe Calatrava Rose Gold Ref. 3425R

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Patek Philippe - Patek Philippe Yellow Gold Officers Grey Roman Dial Ref. 5022 - The Keystone Watches

Patek Philippe Yellow Gold Officers Grey Roman Dial Ref. 5022

Patek Philippe Yellow Gold Officers Grey Roman Dial Ref. 5022

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

Patek Philippe White Gold Chronograph Watch Ref. 5070G

Patek Philippe White Gold Chronograph Watch Ref. 5070G

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Patek Philippe - Vintage Patek Philippe Platinum Rectangular Diamond Watch Ref. 425 - The Keystone Watches

Vintage Patek Philippe Platinum Rectangular Diamond Watch Ref. 425

Vintage Patek Philippe Platinum Rectangular Diamond Watch Ref. 425

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

Patek Philippe Yellow Gold Onyx Dial Strap Watch Ref. 3729

Patek Philippe Yellow Gold Onyx Dial Strap Watch Ref. 3729

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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)

$150,000 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
 
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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