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

Patek Philippe White Gold Perpetual Watch Ref. 5320

Patek Philippe White Gold Perpetual Watch Ref. 5320

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Patek Philippe - Patek Philippe Yellow Gold Aquanaut Watch Ref. 5066 - The Keystone Watches

Patek Philippe Yellow Gold Aquanaut Watch Ref. 5066

Patek Philippe Yellow Gold Aquanaut Watch Ref. 5066

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Patek Philippe - Patek Philippe Nautilus Watch Ref. 3800 - The Keystone Watches

Patek Philippe Nautilus Watch Ref. 3800

Patek Philippe Nautilus Watch Ref. 3800

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

Patek Philippe Platinum World Time Cloisonne Watch Ref. 5131

Patek Philippe Platinum World Time Cloisonne Watch Ref. 5131

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Patek Philippe - Patek Philippe White Gold Diamond & Sapphire Watch Ref. 3319 - The Keystone Watches

Patek Philippe White Gold Diamond & Sapphire Watch Ref. 3319

Patek Philippe White Gold Diamond & Sapphire Watch Ref. 3319

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Patek Philippe - Patek Philippe Neptune Power Reserve Moonphase Ref. 5085 - The Keystone Watches

Patek Philippe Neptune Power Reserve Moonphase Ref. 5085

Patek Philippe Neptune Power Reserve Moonphase Ref. 5085

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Patek Philippe - Patek Philippe Nautilus Travel Time Chronograph Watch Ref. 5990 - The Keystone Watches

Patek Philippe Nautilus Travel Time Chronograph Watch Ref. 5990

Patek Philippe Nautilus Travel Time Chronograph Watch Ref. 5990

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Patek Philippe - Patek Philippe Rose Gold Split Seconds Perpetual Calendar Chrono Ref. 5204 in Unworn Condition - The Keystone Watches

Patek Philippe Rose Gold Split Seconds Perpetual Calendar Chrono Ref. 5204 in Unworn Condition

Patek Philippe Rose Gold Split Seconds Perpetual Calendar Chrono Ref. 5204 in Unworn Condition

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Patek Philippe - Patek Philippe Rose Gold Calatrava Ref. 5196 - The Keystone Watches

Patek Philippe Rose Gold Calatrava Ref. 5196

Patek Philippe Rose Gold Calatrava Ref. 5196

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

Patek Philippe Yellow Gold Chronograph Ref. 5070

Patek Philippe Yellow Gold Chronograph Ref. 5070

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Patek Philippe - Patek Philippe Aquanaut Rose Gold on Strap Ref. 5167R - The Keystone Watches

Patek Philippe Aquanaut Rose Gold on Strap Ref. 5167R

Patek Philippe Aquanaut Rose Gold on Strap Ref. 5167R

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Patek Philippe - Patek Philippe Yellow Gold Chronograph Watch, Ref. 5170 - The Keystone Watches

Patek Philippe Yellow Gold Chronograph Watch, Ref. 5170

Patek Philippe Yellow Gold Chronograph Watch, Ref. 5170

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

Patek Philippe Platinum World Time Watch Ref. 5110

Patek Philippe Platinum World Time Watch Ref. 5110

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Patek Philippe - Patek Philippe White Gold World Time Watch Ref. 5230 - The Keystone Watches

Patek Philippe White Gold World Time Watch Ref. 5230

Patek Philippe White Gold World Time Watch Ref. 5230

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Patek Philippe - Patek Philippe Whtie Gold Baguette Diamond Watch Ref. 3625 - The Keystone Watches

Patek Philippe Whtie Gold Baguette Diamond Watch Ref. 3625

Patek Philippe Whtie Gold Baguette Diamond Watch Ref. 3625

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Patek Philippe - Patek Philippe Steel Watch Ref. Ref. 3574 - The Keystone Watches

Patek Philippe Steel Watch Ref. Ref. 3574

Patek Philippe Steel Watch Ref. Ref. 3574

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

Patek Philippe Aquanaut Jumbo Watch Ref. 5167

Patek Philippe Aquanaut Jumbo Watch Ref. 5167

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Patek Philippe - Patek Philippe Stainless Steel Pilot Watch Ref. 5522 - The Keystone Watches

Patek Philippe Stainless Steel Pilot Watch Ref. 5522

Patek Philippe Stainless Steel Pilot Watch Ref. 5522

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

Patek Philippe Platinum World Time Cloisonne Watch Ref. 5131

Patek Philippe Platinum World Time Cloisonne Watch Ref. 5131

Sold Out

 
Patek Philippe - Patek Philippe Nautilus Jumbo Watch Ref. 5711 - The Keystone Watches

Patek Philippe Nautilus Jumbo Watch Ref. 5711

Patek Philippe Nautilus Jumbo Watch Ref. 5711

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Patek Philippe - Patek Philippe Nautilus Watch Ref. 3800 - The Keystone Watches

Patek Philippe Nautilus Watch Ref. 3800

Patek Philippe Nautilus Watch Ref. 3800

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Patek Philippe - Patek Philippe Nautilus Watch Ref. 3800 - The Keystone Watches

Patek Philippe Nautilus Watch Ref. 3800

Patek Philippe Nautilus Watch Ref. 3800

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Patek Philippe - Patek Philippe Yellow Gold Gondolo Watch Ref. 5010 - The Keystone Watches

Patek Philippe Yellow Gold Gondolo Watch Ref. 5010

Patek Philippe Yellow Gold Gondolo Watch Ref. 5010

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Patek Philippe - Patek Philippe Nautilus Two Tone Ref. 5980/1AR - The Keystone Watches

Patek Philippe Nautilus Two Tone Ref. 5980/1AR

Patek Philippe Nautilus Two Tone Ref. 5980/1AR

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Patek Philippe - Patek Philippe Rose Gold Nautilus Watch Ref. 5711 - The Keystone Watches

Patek Philippe Rose Gold Nautilus Watch Ref. 5711

Patek Philippe Rose Gold Nautilus Watch Ref. 5711

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Patek Philippe - Patek Philippe Steel Calatrava Watch Ref. 3418 - The Keystone Watches

Patek Philippe Steel Calatrava Watch Ref. 3418

Patek Philippe Steel Calatrava Watch Ref. 3418

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Patek Philippe - Patek Philippe Rose Gold Calatrava Watch Ref. 4897 - The Keystone Watches

Patek Philippe Rose Gold Calatrava Watch Ref. 4897

Patek Philippe Rose Gold Calatrava Watch Ref. 4897

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Patek Philippe - Patek Philippe White Gold Perpetual Calendar Watch Ref. 5040 - The Keystone Watches

Patek Philippe White Gold Perpetual Calendar Watch Ref. 5040

Patek Philippe White Gold Perpetual Calendar Watch Ref. 5040

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

Patek Philippe White Gold Perpetual Calendar Chrono Watch Ref. 5970

Patek Philippe White Gold Perpetual Calendar Chrono Watch Ref. 5970

Sold Out

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

Patek Philippe Platinum Perpetual Diamond Chrono Watch Ref. 5271

Patek Philippe Platinum Perpetual Diamond Chrono Watch Ref. 5271

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Patek Philippe - Patek Philippe Yellow Gold Automatic Watch Ref. 3558 Retailed by Tiffany & Co. - The Keystone Watches

Patek Philippe Yellow Gold Automatic Watch Ref. 3558 Retailed by Tiffany & Co.

Patek Philippe Yellow Gold Automatic Watch Ref. 3558 Retailed by Tiffany & Co.

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Patek Philippe - Patek Philippe Rose Gold Perpetual Calendar Watch Ref. 5040 Retailed by Tiffany & Co. - The Keystone Watches

Patek Philippe Rose Gold Perpetual Calendar Watch Ref. 5040 Retailed by Tiffany & Co.

Patek Philippe Rose Gold Perpetual Calendar Watch Ref. 5040 Retailed by Tiffany & Co.

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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 White Gold Nautilus Baguette Diamond Watch Ref. 5724 - The Keystone Watches

Patek Philippe White Gold Nautilus Baguette Diamond Watch Ref. 5724

Patek Philippe White Gold Nautilus Baguette Diamond Watch Ref. 5724

Sold Out

 
Patek Philippe - Patek Philippe Rose Gold Chronograph Baguette Watch Ref. 5961 - The Keystone Watches

Patek Philippe Rose Gold Chronograph Baguette Watch Ref. 5961

Patek Philippe Rose Gold Chronograph Baguette Watch Ref. 5961

Sold Out

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

Patek Philippe White Gold Perpetual Calendar Watch Ref. 3940

Patek Philippe White Gold Perpetual Calendar Watch Ref. 3940

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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