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Patek Philippe - Patek Philippe Rose Gold Annual Calendar Watch Ref. 5396R - The Keystone Watches

Patek Philippe Rose Gold Annual Calendar Watch Ref. 5396R

Patek Philippe Rose Gold Annual Calendar Watch Ref. 5396R

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Patek Philippe - Patek Philippe White Gold Automatic Watch Ref. 3563 with Box & Papers - The Keystone Watches

Patek Philippe White Gold Automatic Watch Ref. 3563 with Box & Papers

Patek Philippe White Gold Automatic Watch Ref. 3563 with Box & Papers

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Patek Philippe - Patek Philippe Rose Gold World Time Watch Ref. 5130R - The Keystone Watches

Patek Philippe Rose Gold World Time Watch Ref. 5130R

Patek Philippe Rose Gold World Time Watch Ref. 5130R

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Patek Philippe - Patek Philippe Platinum Annual Calendar Chrono Watch Ref. 5905P - The Keystone Watches

Patek Philippe Platinum Annual Calendar Chrono Watch Ref. 5905P

Patek Philippe Platinum Annual Calendar Chrono Watch Ref. 5905P

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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 Rose Gold Sky Moon Celestial Watch Ref. 6102 - The Keystone Watches

Patek Philippe Rose Gold Sky Moon Celestial Watch Ref. 6102

Patek Philippe Rose Gold Sky Moon Celestial Watch Ref. 6102

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Patek Philippe - Patek Philippe White Gold World Time Cloisonne Watch Ref. 5131G - The Keystone Watches

Patek Philippe White Gold World Time Cloisonne Watch Ref. 5131G

Patek Philippe White Gold World Time Cloisonne Watch Ref. 5131G

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

Patek Philippe Rose Gold World Time Cloisonne Watch Ref. 5131

Patek Philippe Rose Gold World Time Cloisonne Watch Ref. 5131

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Patek Philippe - Patek Philippe Platinum Calatrava Watch Ref. 5196P - The Keystone Watches

Patek Philippe Platinum Calatrava Watch Ref. 5196P

Patek Philippe Platinum Calatrava Watch Ref. 5196P

Sold Out

 
Patek Philippe - Patek Philippe White Gold Annual Calendar Watch Ref. 5396G - The Keystone Watches

Patek Philippe White Gold Annual Calendar Watch Ref. 5396G

Patek Philippe White Gold Annual Calendar Watch Ref. 5396G

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

Patek Philippe Rose Gold Aquanaut Watch Ref. 5167R

Patek Philippe Rose Gold Aquanaut Watch Ref. 5167R

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Patek Philippe - Patek Philippe White & Rose Gold Nautilus Moonphase Watch Ref. 5712 - The Keystone Watches

Patek Philippe White & Rose Gold Nautilus Moonphase Watch Ref. 5712

Patek Philippe White & Rose Gold Nautilus Moonphase Watch Ref. 5712

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Patek Philippe - Patek Philippe Yellow Gold Rectangular Tank Watch Ref. 425 - The Keystone Watches

Patek Philippe Yellow Gold Rectangular Tank Watch Ref. 425

Patek Philippe Yellow Gold Rectangular Tank Watch Ref. 425

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Patek Philippe - Patek Philippe White Gold Annual Calendar Watch Ref. 5035G - The Keystone Watches

Patek Philippe White Gold Annual Calendar Watch Ref. 5035G

Patek Philippe White Gold Annual Calendar Watch Ref. 5035G

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Patek Philippe - Patek Philippe Rose Gold Nautilus Moonphase Watch Ref. 5712 - The Keystone Watches

Patek Philippe Rose Gold Nautilus Moonphase Watch Ref. 5712

Patek Philippe Rose Gold Nautilus Moonphase Watch Ref. 5712

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Patek Philippe - Patek Philippe Rose Gold Calatrava Watch Ref. 2500 - The Keystone Watches

Patek Philippe Rose Gold Calatrava Watch Ref. 2500

Patek Philippe Rose Gold Calatrava Watch Ref. 2500

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Patek Philippe - Patek Philippe Steel Nautilus Moonphase Watch Ref. 5726/1A - The Keystone Watches

Patek Philippe Steel Nautilus Moonphase Watch Ref. 5726/1A

Patek Philippe Steel Nautilus Moonphase Watch Ref. 5726/1A

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Patek Philippe - Patek Philippe Nautilus Stainless Steel Ref. 5726/1A - The Keystone Watches

Patek Philippe Nautilus Stainless Steel Ref. 5726/1A

Patek Philippe Nautilus Stainless Steel Ref. 5726/1A

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Patek Philippe - Patek Philippe Stainless Steel Aquanaut Watch Ref. 5167 - The Keystone Watches

Patek Philippe Stainless Steel Aquanaut Watch Ref. 5167

Patek Philippe Stainless Steel Aquanaut Watch Ref. 5167

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Patek Philippe - Patek Philippe Platinum Rare Handcrafts Enamel Watch Ref. 5088P - The Keystone Watches

Patek Philippe Platinum Rare Handcrafts Enamel Watch Ref. 5088P

Patek Philippe Platinum Rare Handcrafts Enamel Watch Ref. 5088P

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Patek Philippe - Patek Philippe Yellow Gold Annual Calendar Tiffany & Co Watch Ref. 5146J - The Keystone Watches

Patek Philippe Yellow Gold Annual Calendar Tiffany & Co Watch Ref. 5146J

Patek Philippe Yellow Gold Annual Calendar Tiffany & Co Watch Ref. 5146J

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

Patek Philippe Steel Nautilus Watch Ref. 3800

Patek Philippe Steel Nautilus Watch Ref. 3800

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Patek Philippe - Patek Philippe Yellow Gold Annual Calendar Watch Ref. 5036J - The Keystone Watches

Patek Philippe Yellow Gold Annual Calendar Watch Ref. 5036J

Patek Philippe Yellow Gold Annual Calendar Watch Ref. 5036J

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Patek Philippe - Patek Philippe Stainless Steel Nautilus Watch Ref. 5711/1a - The Keystone Watches

Patek Philippe Stainless Steel Nautilus Watch Ref. 5711/1a

Patek Philippe Stainless Steel Nautilus Watch Ref. 5711/1a

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

Patek Philippe Rose Gold Perpetual Calendar Watch Ref. 5270R

Patek Philippe Rose Gold Perpetual Calendar Watch Ref. 5270R

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

Patek Philippe Stainless Steel Nautilus Watch Ref. 3800

Patek Philippe Stainless Steel Nautilus Watch Ref. 3800

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Patek Philippe - Patek Philippe Annual Calendar Chronograph Watch Ref. 5960/1A - The Keystone Watches

Patek Philippe Annual Calendar Chronograph Watch Ref. 5960/1A

Patek Philippe Annual Calendar Chronograph Watch Ref. 5960/1A

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

Patek Philippe White Gold Annual Calendar Watch Ref. 5146G

Patek Philippe White Gold Annual Calendar Watch Ref. 5146G

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Patek Philippe - Patek Philippe Rose Gold Perpetual Calendar Retrograde Watch Ref. 5059 - The Keystone Watches

Patek Philippe Rose Gold Perpetual Calendar Retrograde Watch Ref. 5059

Patek Philippe Rose Gold Perpetual Calendar Retrograde Watch Ref. 5059

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

Patek Philippe Yellow Gold Perpetual Split Seconds Chrono Watch Ref. 5004

Patek Philippe Yellow Gold Perpetual Split Seconds Chrono Watch Ref. 5004

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Patek Philippe - Patek Philippe Yellow Gold Starburst Beta Quartz Watch Ref. 3603 - The Keystone Watches

Patek Philippe Yellow Gold Starburst Beta Quartz Watch Ref. 3603

Patek Philippe Yellow Gold Starburst Beta Quartz Watch Ref. 3603

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Patek Philippe - Patek Philippe Stainless Steel 150th Anniversary Watch Ref. 3718 - The Keystone Watches

Patek Philippe Stainless Steel 150th Anniversary Watch Ref. 3718

Patek Philippe Stainless Steel 150th Anniversary Watch Ref. 3718

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

Patek Philippe Rose Gold World Time Watch Ref. 5230

Patek Philippe Rose Gold World Time Watch Ref. 5230

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

Patek Philippe White Gold Annual Calendar Regulator Watch Ref. 5235G

Patek Philippe White Gold Annual Calendar Regulator Watch Ref. 5235G

Sold Out

 
Patek Philippe - Patek Philippe Rose Gold 10-Day Power Reserve Watch Ref. 5100R - The Keystone Watches

Patek Philippe Rose Gold 10-Day Power Reserve Watch Ref. 5100R

Patek Philippe Rose Gold 10-Day Power Reserve Watch Ref. 5100R

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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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