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Patek Philippe - Patek Philippe White Gold Nautilus Watch Ref. 5719 - The Keystone Watches

Patek Philippe White Gold Nautilus Watch Ref. 5719

Patek Philippe White Gold Nautilus Watch Ref. 5719

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Rolex - Rolex White Gold GMT-Master II Diamond Sapphire Ruby Watch Ref. 116759 - The Keystone Watches

Rolex White Gold GMT-Master II Diamond Sapphire Ruby Watch Ref. 116759

Rolex White Gold GMT-Master II Diamond Sapphire Ruby Watch Ref. 116759

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Rolex - Rolex White Gold Yacht-Master 42 Watch Ref. 226659 - The Keystone Watches

Rolex White Gold Yacht-Master 42 Watch Ref. 226659

Rolex White Gold Yacht-Master 42 Watch Ref. 226659

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Patek Philippe - Patek Philippe Aquanaut Travel Time Watch Ref. 5164 - The Keystone Watches

Patek Philippe Aquanaut Travel Time Watch Ref. 5164

Patek Philippe Aquanaut Travel Time Watch Ref. 5164

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

Patek Philippe Platinum Perpetual Calendar Retrograde Watch Ref. 5059

Patek Philippe Platinum Perpetual Calendar Retrograde Watch Ref. 5059

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Patek Philippe - Patek Philippe White Gold Perpetual Calendar Watch Ref. 5740 - The Keystone Watches

Patek Philippe White Gold Perpetual Calendar Watch Ref. 5740

Patek Philippe White Gold Perpetual Calendar Watch Ref. 5740

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

Patek Philippe White Gold Perpetual Calendar Chronograph Watch Ref. 5270

Patek Philippe White Gold Perpetual Calendar Chronograph Watch Ref. 5270

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Audemars Piguet - Audemars Piguet Yellow Gold Chronograph Watch, Ref. 26320 - The Keystone Watches

Audemars Piguet Yellow Gold Chronograph Watch, Ref. 26320

Audemars Piguet Yellow Gold Chronograph Watch, Ref. 26320

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Patek Philippe - Patek Philippe White Gold World Time Watch Ref. 5130, Retailed by Tiffany & Co. - The Keystone Watches

Patek Philippe White Gold World Time Watch Ref. 5130, Retailed by Tiffany & Co.

Patek Philippe White Gold World Time Watch Ref. 5130, Retailed by Tiffany & Co.

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Audemars Piguet - Audemars Piguet Rose Gold Royal Oak Offshore Alinghi Watch - The Keystone Watches

Audemars Piguet Rose Gold Royal Oak Offshore Alinghi Watch

Audemars Piguet Rose Gold Royal Oak Offshore Alinghi Watch

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Philippe Dufour - Philippe Dufour White Gold Simplicity Watch, with Original Box and Papers - The Keystone Watches

Philippe Dufour White Gold Simplicity Watch, with Original Box and Papers

Philippe Dufour White Gold Simplicity Watch, with Original Box and Papers

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Audemars Piguet - Audemars Piguet Carbon Fiber Royal Oak Offshore Alinghi Watch - The Keystone Watches

Audemars Piguet Carbon Fiber Royal Oak Offshore Alinghi Watch

Audemars Piguet Carbon Fiber Royal Oak Offshore Alinghi Watch

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Audemars Piguet - Audemars Piguet Royal Oak Offshore Diver Chronograph Watch - The Keystone Watches

Audemars Piguet Royal Oak Offshore Diver Chronograph Watch

Audemars Piguet Royal Oak Offshore Diver Chronograph Watch

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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

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Rolex - Rolex Yellow Gold GMT-Master II Diamond Sapphire Ruby Watch Ref. 116758 - The Keystone Watches

Rolex Yellow Gold GMT-Master II Diamond Sapphire Ruby Watch Ref. 116758

Rolex Yellow Gold GMT-Master II Diamond Sapphire Ruby Watch Ref. 116758

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

Patek Philippe Steel Aquanaut Automatic Watch Ref. 5167

Patek Philippe Steel Aquanaut Automatic Watch Ref. 5167

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Patek Philippe - Patek Philippe White Gold 10-Day Tourbillon Watch Ref. 5101 - The Keystone Watches

Patek Philippe White Gold 10-Day Tourbillon Watch Ref. 5101

Patek Philippe White Gold 10-Day Tourbillon Watch Ref. 5101

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FP Journe - F.P. Journe Platinum Tourbillon Souverain Dead Seconds Watch - The Keystone Watches

F.P. Journe Platinum Tourbillon Souverain Dead Seconds Watch

F.P. Journe Platinum Tourbillon Souverain Dead Seconds Watch

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Patek Philippe - Patek Philippe Aquanaut Automatic Watch Ref. 5066 with Original Box and Papers - The Keystone Watches

Patek Philippe Aquanaut Automatic Watch Ref. 5066 with Original Box and Papers

Patek Philippe Aquanaut Automatic Watch Ref. 5066 with Original Box and Papers

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Patek Philippe - Patek Philippe Yellow Gold Perpetual Calendar Chrono Watch Ref. 5020 - The Keystone Watches

Patek Philippe Yellow Gold Perpetual Calendar Chrono Watch Ref. 5020

Patek Philippe Yellow Gold Perpetual Calendar Chrono Watch Ref. 5020

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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 Yellow Gold Annual Calendar Watch Ref. 5146 in Like New Condition - The Keystone Watches

Patek Philippe Yellow Gold Annual Calendar Watch Ref. 5146 in Like New Condition

Patek Philippe Yellow Gold Annual Calendar Watch Ref. 5146 in Like New Condition

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New Arrivals Preview
 
Cartier Tank Coussin Bamboo Ref. 78102 (New Arrival)

Cartier Tank Coussin Bamboo Ref. 78102 (New Arrival)

Cartier Tank Coussin Bamboo Ref. 78102 (New Arrival)

$125,000 USD
 
Cartier Tank Allongee Elongated, Circa 1940 (New Arrival)

Cartier Tank Allongee Elongated, Circa 1940 (New Arrival)

Cartier Tank Allongee Elongated, Circa 1940 (New Arrival)

$62,000 USD
 
Patek Philippe White Gold Rectangular Art Deco Watch (New Arrival)

Patek Philippe White Gold Rectangular Art Deco Watch (New Arrival)

Patek Philippe White Gold Rectangular Art Deco Watch (New Arrival)

$55,000 USD
 
Cartier Platinum Tank Watch Ref. 16111 (New Arrival)

Cartier Platinum Tank Watch Ref. 16111 (New Arrival)

Cartier Platinum Tank Watch Ref. 16111 (New Arrival)

$21,000 USD
 
Patek Philippe Yellow Gold Chronograph Watch Ref. 591, Incredible Original Condition (New Arrival)

Patek Philippe Yellow Gold Chronograph Watch Ref. 591, Incredible Original Condition (New Arrival)

Patek Philippe Yellow Gold Chronograph Watch Ref. 591, Incredible Original Condition (New Arrival)

$175,000 USD
 
Patek Philippe Yellow Gold Enamel Dial Calatrava Watch Ref. 2526 (New Arrival)

Patek Philippe Yellow Gold Enamel Dial Calatrava Watch Ref. 2526 (New Arrival)

Patek Philippe Yellow Gold Enamel Dial Calatrava Watch Ref. 2526 (New Arrival)

$70,000 USD
 
Piaget Yellow Gold Lapis Lazuli & Jade Cuff Watch (New Arrivals)

Piaget Yellow Gold Lapis Lazuli & Jade Cuff Watch (New Arrivals)

Piaget Yellow Gold Lapis Lazuli & Jade Cuff Watch (New Arrivals)

$48,000 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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