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

Patek Philippe Yellow Gold Calatrava Ref. 3514

Patek Philippe Yellow Gold Calatrava Ref. 3514

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Patek Philippe - Patek Philippe White Gold Perpetual Calendar Watch Ref. 5270 - The Keystone Watches

Patek Philippe White Gold Perpetual Calendar Watch Ref. 5270

Patek Philippe White Gold Perpetual Calendar Watch Ref. 5270

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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 White Gold Annual Calendar Watch Ref. 5205 - The Keystone Watches

Patek Philippe White Gold Annual Calendar Watch Ref. 5205

Patek Philippe White Gold Annual Calendar Watch Ref. 5205

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Patek Philippe - Patek Philippe White Gold Aquanaut Khaki Green Watch Ref. 5168 (NEW ARRIVAL) - The Keystone Watches

Patek Philippe White Gold Aquanaut Khaki Green Watch Ref. 5168 (NEW ARRIVAL)

Patek Philippe White Gold Aquanaut Khaki Green Watch Ref. 5168 (NEW ARRIVAL)

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Patek Philippe - Patek Philippe Yellow Gold Calatrava Watch Ref. 3919 (NEW ARRIVAL) - The Keystone Watches

Patek Philippe Yellow Gold Calatrava Watch Ref. 3919 (NEW ARRIVAL)

Patek Philippe Yellow Gold Calatrava Watch Ref. 3919 (NEW ARRIVAL)

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Patek Philippe - Patek Philippe Steel Dual Time Aquanaut Ref. 5164 - The Keystone Watches

Patek Philippe Steel Dual Time Aquanaut Ref. 5164

Patek Philippe Steel Dual Time Aquanaut Ref. 5164

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Patek Philippe - Patek Philippe Yellow Gold Ellipse Ref. 3545 - The Keystone Watches

Patek Philippe Yellow Gold Ellipse Ref. 3545

Patek Philippe Yellow Gold Ellipse Ref. 3545

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Patek Philippe - Patek Philippe White Gold Calatrava Watch Ref. 3468 - The Keystone Watches

Patek Philippe White Gold Calatrava Watch Ref. 3468

Patek Philippe White Gold Calatrava Watch Ref. 3468

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Patek Philippe - Patek Philippe White Gold Automatic Backwind Golden Circle Watch Ref. 3586 - The Keystone Watches

Patek Philippe White Gold Automatic Backwind Golden Circle Watch Ref. 3586

Patek Philippe White Gold Automatic Backwind Golden Circle Watch Ref. 3586

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Patek Philippe - Patek Philippe Yellow Gold Nautilus Watch Ref. 3800 with Rare White Roman Numerals Dial - The Keystone Watches

Patek Philippe Yellow Gold Nautilus Watch Ref. 3800 with Rare White Roman Numerals Dial

Patek Philippe Yellow Gold Nautilus Watch Ref. 3800 with Rare White Roman Numerals Dial

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Patek Philippe - Patek Philippe Rose Gold Chronograph 175th Anniversary Watch Ref. 5975 - The Keystone Watches

Patek Philippe Rose Gold Chronograph 175th Anniversary Watch Ref. 5975

Patek Philippe Rose Gold Chronograph 175th Anniversary Watch Ref. 5975

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Patek Philippe - Patek Philippe Platinum Chronograph Watch Ref. 5170 - The Keystone Watches

Patek Philippe Platinum Chronograph Watch Ref. 5170

Patek Philippe Platinum Chronograph Watch Ref. 5170

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Patek Philippe - Patek Philippe Yellow Gold Nautilus Ref. 3800 with Original Warranty - The Keystone Watches

Patek Philippe Yellow Gold Nautilus Ref. 3800 with Original Warranty

Patek Philippe Yellow Gold Nautilus Ref. 3800 with Original Warranty

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Patek Philippe - Patek Philippe White Gold Calatrava Ref. 2592 - The Keystone Watches

Patek Philippe White Gold Calatrava Ref. 2592

Patek Philippe White Gold Calatrava Ref. 2592

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Patek Philippe - Patek Philippe White Gold Calatrava Ref. 3588 with Box and Papers - The Keystone Watches

Patek Philippe White Gold Calatrava Ref. 3588 with Box and Papers

Patek Philippe White Gold Calatrava Ref. 3588 with Box and Papers

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Patek Philippe - Patek Philippe White Gold Calatrava Watch Ref. 3588 - The Keystone Watches

Patek Philippe White Gold Calatrava Watch Ref. 3588

Patek Philippe White Gold Calatrava Watch Ref. 3588

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

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

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Patek Philippe - Patek Philippe Futuriste Pocket Watch Ref. 798 Designed by Gilbert Albert - The Keystone Watches

Patek Philippe Futuriste Pocket Watch Ref. 798 Designed by Gilbert Albert

Patek Philippe Futuriste Pocket Watch Ref. 798 Designed by Gilbert Albert

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Patek Philippe - Patek Philippe World Time White Gold Watch Ref. 5230 (NEW ARRIVAL) - The Keystone Watches

Patek Philippe World Time White Gold Watch Ref. 5230 (NEW ARRIVAL)

Patek Philippe World Time White Gold Watch Ref. 5230 (NEW ARRIVAL)

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Patek Philippe - Patek Philippe Yellow Gold Bracelet Watch Ref. 3598 - The Keystone Watches

Patek Philippe Yellow Gold Bracelet Watch Ref. 3598

Patek Philippe Yellow Gold Bracelet Watch Ref. 3598

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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 Diamond Watch Ref. 4183 - The Keystone Watches

Patek Philippe White Gold Diamond Watch Ref. 4183

Patek Philippe White Gold Diamond Watch Ref. 4183

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Patek Philippe - Patek Philippe White Gold Watch Ref. 4286 with Onyx Dial - The Keystone Watches

Patek Philippe White Gold Watch Ref. 4286 with Onyx Dial

Patek Philippe White Gold Watch Ref. 4286 with Onyx Dial

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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 White Gold Calatrava Ref. 3445 with Original Warranty and Hangtag (NEW ARRIVAL) - The Keystone Watches

Patek Philippe White Gold Calatrava Ref. 3445 with Original Warranty and Hangtag (NEW ARRIVAL)

Patek Philippe White Gold Calatrava Ref. 3445 with Original Warranty and Hangtag (NEW ARRIVAL)

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Patek Philippe - Patek Philippe Platinum Diamond Watch Ref. 3289, Retailed by Tiffany & Co. (NEW ARRIVAL) - The Keystone Watches

Patek Philippe Platinum Diamond Watch Ref. 3289, Retailed by Tiffany & Co. (NEW ARRIVAL)

Patek Philippe Platinum Diamond Watch Ref. 3289, Retailed by Tiffany & Co. (NEW ARRIVAL)

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Patek Philippe - Patek Philippe White Gold & Baguette Diamond Watch Ref. 3313 - The Keystone Watches

Patek Philippe White Gold & Baguette Diamond Watch Ref. 3313

Patek Philippe White Gold & Baguette Diamond Watch Ref. 3313

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Patek Philippe - Patek Philippe White Gold Auto Ref. 3591 with Box and Papers - The Keystone Watches

Patek Philippe White Gold Auto Ref. 3591 with Box and Papers

Patek Philippe White Gold Auto Ref. 3591 with Box and Papers

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Patek Philippe - Patek Philippe Yellow Gold Calatrava Watch Ref. 3445 (NEW ARRIVAL) - The Keystone Watches

Patek Philippe Yellow Gold Calatrava Watch Ref. 3445 (NEW ARRIVAL)

Patek Philippe Yellow Gold Calatrava Watch Ref. 3445 (NEW ARRIVAL)

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Patek Philippe - Patek Philippe White Gold, Baguette Diamond and Onyx Watch Ref. 3625 (NEW ARRIVAL) - The Keystone Watches

Patek Philippe White Gold, Baguette Diamond and Onyx Watch Ref. 3625 (NEW ARRIVAL)

Patek Philippe White Gold, Baguette Diamond and Onyx Watch Ref. 3625 (NEW ARRIVAL)

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Patek Philippe Yellow Gold Calatrava Ref. 3520 Retailed by Tiffany

Patek Philippe Yellow Gold Calatrava Ref. 3520 Retailed by Tiffany

Sold Out

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

Patek Philippe Rose Gold Perpetual Calendar Watch Ref. 5140

Patek Philippe Rose Gold Perpetual Calendar Watch Ref. 5140

Sold Out

 
Patek Philippe - Patek Philippe Yellow Gold Annual Calendar Watch Ref. 5146 - The Keystone Watches

Patek Philippe Yellow Gold Annual Calendar Watch Ref. 5146

Patek Philippe Yellow Gold Annual Calendar Watch Ref. 5146

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Patek Philippe - Patek Philippe Yellow Gold Perpetual Calendar Retrograde Watch Ref. 5050 - The Keystone Watches

Patek Philippe Yellow Gold Perpetual Calendar Retrograde Watch Ref. 5050

Patek Philippe Yellow Gold Perpetual Calendar Retrograde Watch Ref. 5050

Sold Out

 
Patek Philippe - Patek Philippe Steel Tonneau Ref. 3579 with Original Papers - The Keystone Watches

Patek Philippe Steel Tonneau Ref. 3579 with Original Papers

Patek Philippe Steel Tonneau Ref. 3579 with Original Papers

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"
 
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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