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

Patek Philippe Platinum Perpetual Calendar Chronograph Diamond Watch Ref. 5271

Patek Philippe Platinum Perpetual Calendar Chronograph Diamond Watch Ref. 5271

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Patek Philippe - Patek Philippe Rose Gold Nautilus Watch Ref. 5723 with Factory Ruby Dial and Bezel - The Keystone Watches

Patek Philippe Rose Gold Nautilus Watch Ref. 5723 with Factory Ruby Dial and Bezel

Patek Philippe Rose Gold Nautilus Watch Ref. 5723 with Factory Ruby Dial and Bezel

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Patek Philippe - Patek Philippe Platinum Calatrava Watch Ref. 5298 with Baguette Diamonds - The Keystone Watches

Patek Philippe Platinum Calatrava Watch Ref. 5298 with Baguette Diamonds

Patek Philippe Platinum Calatrava Watch Ref. 5298 with Baguette Diamonds

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Chrono Watch Ref. 5270 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Chrono Watch Ref. 5270

Patek Philippe Platinum Perpetual Calendar Chrono Watch Ref. 5270

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Patek Philippe - Patek Philippe Yellow Gold Nautilus Diamond Emerald Watch Ref. 3800/5 - The Keystone Watches

Patek Philippe Yellow Gold Nautilus Diamond Emerald Watch Ref. 3800/5

Patek Philippe Yellow Gold Nautilus Diamond Emerald Watch Ref. 3800/5

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Patek Philippe - Patek Philippe Rose Gold Perpetual Calendar Minute Repeater Watch Ref. 5074 - The Keystone Watches

Patek Philippe Rose Gold Perpetual Calendar Minute Repeater Watch Ref. 5074

Patek Philippe Rose Gold Perpetual Calendar Minute Repeater Watch Ref. 5074

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Patek Philippe - Patek Philippe Rose Gold Grand Complication Minute Repeater Ref. 5208 - The Keystone Watches

Patek Philippe Rose Gold Grand Complication Minute Repeater Ref. 5208

Patek Philippe Rose Gold Grand Complication Minute Repeater Ref. 5208

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Patek Philippe - Patek Philippe Steel Aquanaut Ref. 5065 - The Keystone Watches

Patek Philippe Steel Aquanaut Ref. 5065

Patek Philippe Steel Aquanaut Ref. 5065

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Patek Philippe - Patek Philippe Platinum Calatrava Sapphire Dial Watch Ref. 3796 - The Keystone Watches

Patek Philippe Platinum Calatrava Sapphire Dial Watch Ref. 3796

Patek Philippe Platinum Calatrava Sapphire Dial Watch Ref. 3796

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Patek Philippe - Patek Philippe White Gold Automatic Watch Ref. 3844 - The Keystone Watches

Patek Philippe White Gold Automatic Watch Ref. 3844

Patek Philippe White Gold Automatic Watch Ref. 3844

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

Patek Philippe White Gold Perpetual Calendar Chronograph Watch Ref. 5970

Patek Philippe White Gold Perpetual Calendar Chronograph Watch Ref. 5970

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Patek Philippe - Patek Philippe Rose Gold Perpetual Calendar Watch Ref. 3970 with Rare Brown, Breguet Numeral Dial - The Keystone Watches

Patek Philippe Rose Gold Perpetual Calendar Watch Ref. 3970 with Rare Brown, Breguet Numeral Dial

Patek Philippe Rose Gold Perpetual Calendar Watch Ref. 3970 with Rare Brown, Breguet Numeral Dial

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Patek Philippe - Patek Philippe White Gold Calatrava Watch Ref. 3759 with Original Diamond Bezel and Dial - The Keystone Watches

Patek Philippe White Gold Calatrava Watch Ref. 3759 with Original Diamond Bezel and Dial

Patek Philippe White Gold Calatrava Watch Ref. 3759 with Original Diamond Bezel and Dial

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Patek Philippe - Patek Philippe Rose Gold Perpetual Minute Repeater Watch Ref. 5074 - The Keystone Watches

Patek Philippe Rose Gold Perpetual Minute Repeater Watch Ref. 5074

Patek Philippe Rose Gold Perpetual Minute Repeater Watch Ref. 5074

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Patek Philippe - Patek Philippe Nautilus Moonphase Watch Ref. 5712 with Original Box and Papers - The Keystone Watches

Patek Philippe Nautilus Moonphase Watch Ref. 5712 with Original Box and Papers

Patek Philippe Nautilus Moonphase Watch Ref. 5712 with Original Box and Papers

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Patek Philippe - Patek Philippe White Gold Perpetual Calendar Tiffany & Co. Watch Ref. 5970 - The Keystone Watches

Patek Philippe White Gold Perpetual Calendar Tiffany & Co. Watch Ref. 5970

Patek Philippe White Gold Perpetual Calendar Tiffany & Co. Watch Ref. 5970

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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 Steel Nautilus Ref. 5711 with Original Box and Warranty - The Keystone Watches

Patek Philippe Steel Nautilus Ref. 5711 with Original Box and Warranty

Patek Philippe Steel Nautilus Ref. 5711 with Original Box and Warranty

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Diamond Watch Ref. 5971 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Diamond Watch Ref. 5971

Patek Philippe Platinum Perpetual Calendar Diamond Watch Ref. 5971

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

Patek Philippe White Gold Calatrava Ref. 570

Patek Philippe White Gold Calatrava Ref. 570

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Patek Philippe - Patek Philippe Calatrava Handicraft New York Jazz Edition Watch Ref. 5089 in Unworn Condition - The Keystone Watches

Patek Philippe Calatrava Handicraft New York Jazz Edition Watch Ref. 5089 in Unworn Condition

Patek Philippe Calatrava Handicraft New York Jazz Edition Watch Ref. 5089 in Unworn Condition

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Patek Philippe - Patek Philippe Platinum Split Seconds Monopusher Ref. 5370 - The Keystone Watches

Patek Philippe Platinum Split Seconds Monopusher Ref. 5370

Patek Philippe Platinum Split Seconds Monopusher Ref. 5370

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New Arrivals Preview
 
Vacheron Constantin Two-Tone 222 with Emblem of Saudi Arabia (New Arrival

Vacheron Constantin Two-Tone 222 with Emblem of Saudi Arabia (New Arrival

Vacheron Constantin Two-Tone 222 with Emblem of Saudi Arabia (New Arrival

$55,000 USD
 
Rolex Yellow Gold SARU GMT-Master Watch Ref. 116748 (New Arrival)

Rolex Yellow Gold SARU GMT-Master Watch Ref. 116748 (New Arrival)

Rolex Yellow Gold SARU GMT-Master Watch Ref. 116748 (New Arrival)

$86,000 USD
 
Patek Philippe Rose Gold Top Hat Watch Ref. 1450 (New Arrival)

Patek Philippe Rose Gold Top Hat Watch Ref. 1450 (New Arrival)

Patek Philippe Rose Gold Top Hat Watch Ref. 1450 (New Arrival)

$14,000 USD
 
Audemars Piguet Round UFO-Style Bracelet Watch (New Arrival)

Audemars Piguet Round UFO-Style Bracelet Watch (New Arrival)

Audemars Piguet Round UFO-Style Bracelet Watch (New Arrival)

$10,500 USD
 
Patek Philippe Pink Gold Concealed Gay Freres Watch (New Arrival)

Patek Philippe Pink Gold Concealed Gay Freres Watch (New Arrival)

Patek Philippe Pink Gold Concealed Gay Freres Watch (New Arrival)

$29,500 USD
 
Patek Philippe Pink Gold Watch Ref. 2488 (New Arrival)

Patek Philippe Pink Gold Watch Ref. 2488 (New Arrival)

Patek Philippe Pink Gold Watch Ref. 2488 (New Arrival)

$17,500 USD
 
Cartier Yellow Gold Santos Ref. 81736781 with Sapphire Bezel and Bracelet (New Arrival)

Cartier Yellow Gold Santos Ref. 81736781 with Sapphire Bezel and Bracelet (New Arrival)

Cartier Yellow Gold Santos Ref. 81736781 with Sapphire Bezel and Bracelet (New Arrival)

$55,000 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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