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Patek Philippe - Patek Philippe White Gold Mechanical Watch Ref. 3544 - The Keystone Watches

Patek Philippe White Gold Mechanical Watch Ref. 3544

Patek Philippe White Gold Mechanical Watch Ref. 3544

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

Patek Philippe White Gold Perpetual Calendar Watch Ref. 5140

Patek Philippe White Gold Perpetual Calendar Watch Ref. 5140

Sold Out

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

Patek Philippe Steel Aquanaut Ref. 5167

Patek Philippe Steel Aquanaut Ref. 5167

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Patek Philippe - Patek Philippe Platinum Annual Calendar Chronograph Ref. 5960 - The Keystone Watches

Patek Philippe Platinum Annual Calendar Chronograph Ref. 5960

Patek Philippe Platinum Annual Calendar Chronograph Ref. 5960

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Patek Philippe - Patek Philippe Yellow Gold Bracelet Watch Ref. 3860 with Box and Papers - The Keystone Watches

Patek Philippe Yellow Gold Bracelet Watch Ref. 3860 with Box and Papers

Patek Philippe Yellow Gold Bracelet Watch Ref. 3860 with Box and Papers

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

Patek Philippe Platinum Perpetual Calendar Watch Ref. 5140

Patek Philippe Platinum Perpetual Calendar Watch Ref. 5140

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Patek Philippe - Patek Philippe Steel Nautilus Watch Ref. 3700 - The Keystone Watches

Patek Philippe Steel Nautilus Watch Ref. 3700

Patek Philippe Steel Nautilus Watch Ref. 3700

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Patek Philippe - Patek Philippe White Gold Ellipse Ref. 3748 - The Keystone Watches

Patek Philippe White Gold Ellipse Ref. 3748

Patek Philippe White Gold Ellipse Ref. 3748

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

Patek Philippe Yellow Gold Nautilus Ref. 3800

Patek Philippe Yellow Gold Nautilus Ref. 3800

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Patek Philippe - Patek Philippe Platinum World Time Watch Ref. 5130 - The Keystone Watches

Patek Philippe Platinum World Time Watch Ref. 5130

Patek Philippe Platinum World Time Watch Ref. 5130

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Patek Philippe - Patek Philippe Yellow Gold and Diamond Skeleton Watch Ref. 3881 - The Keystone Watches

Patek Philippe Yellow Gold and Diamond Skeleton Watch Ref. 3881

Patek Philippe Yellow Gold and Diamond Skeleton Watch Ref. 3881

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Patek Philippe - Patek Philippe Yellow Gold Skeletonized Enamel Watch Ref. 3885 - The Keystone Watches

Patek Philippe Yellow Gold Skeletonized Enamel Watch Ref. 3885

Patek Philippe Yellow Gold Skeletonized Enamel Watch Ref. 3885

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Patek Philippe - Patek Philippe Steel Automatic Backwind Ref. 3580 - The Keystone Watches

Patek Philippe Steel Automatic Backwind Ref. 3580

Patek Philippe Steel Automatic Backwind Ref. 3580

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

Patek Philippe Platinum and Emerald Perpetual Calendar Chronograph Watch Ref. 5271

Patek Philippe Platinum and Emerald Perpetual Calendar Chronograph Watch Ref. 5271

Sold Out

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

Patek Philippe Yellow Gold Nautilus Watch Ref. 3800

Patek Philippe Yellow Gold Nautilus Watch Ref. 3800

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Patek Philippe - Patek Philippe White Gold Beta 21 Watch Ref. 3587 - The Keystone Watches

Patek Philippe White Gold Beta 21 Watch Ref. 3587

Patek Philippe White Gold Beta 21 Watch Ref. 3587

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

Patek Philippe Platinum Perpetual Calendar Watch Ref. 5040

Patek Philippe Platinum Perpetual Calendar Watch Ref. 5040

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Patek Philippe - Patek Philippe Steel Aquanaut Ref. 5060 with Box and Papers - The Keystone Watches

Patek Philippe Steel Aquanaut Ref. 5060 with Box and Papers

Patek Philippe Steel Aquanaut Ref. 5060 with Box and Papers

Sold Out

 
Patek Philippe - Patek Philippe White Gold Calatrava Ref. 3445 - The Keystone Watches

Patek Philippe White Gold Calatrava Ref. 3445

Patek Philippe White Gold Calatrava Ref. 3445

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Patek Philippe - Patek Philippe Yellow Gold Perpetual Calendar Ref. 3448 - The Keystone Watches

Patek Philippe Yellow Gold Perpetual Calendar Ref. 3448

Patek Philippe Yellow Gold Perpetual Calendar Ref. 3448

Sold Out

 
Patek Philippe - Patek Philippe Steel Automatic Watch Ref. 3580 - The Keystone Watches

Patek Philippe Steel Automatic Watch Ref. 3580

Patek Philippe Steel Automatic Watch Ref. 3580

Sold Out

 
Patek Philippe - Patek Philippe Platinum Monopusher Split Seconds Chrono Ref. 5959 - The Keystone Watches

Patek Philippe Platinum Monopusher Split Seconds Chrono Ref. 5959

Patek Philippe Platinum Monopusher Split Seconds Chrono Ref. 5959

Sold Out

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New Arrivals Preview
 
Rolex Yellow Gold Queen Midas Watch Ref. 4314 with Lapis and Diamond Dial (New Arrival)

Rolex Yellow Gold Queen Midas Watch Ref. 4314 with Lapis and Diamond Dial (New Arrival)

Rolex Yellow Gold Queen Midas Watch Ref. 4314 with Lapis and Diamond Dial (New Arrival)

$38,000 USD
 
Patek Philippe White Gold Baguette Diamond Watch Ref. 3540 (New Arrival)

Patek Philippe White Gold Baguette Diamond Watch Ref. 3540 (New Arrival)

Patek Philippe White Gold Baguette Diamond Watch Ref. 3540 (New Arrival)

$30,000 USD
 
Vacheron Constantin Yellow Gold Chronograph Watch Ref. 4178 with Important Provenance (New Arrival)

Vacheron Constantin Yellow Gold Chronograph Watch Ref. 4178 with Important Provenance (New Arrival)

Vacheron Constantin Yellow Gold Chronograph Watch Ref. 4178 with Important Provenance (New Arrival)

$60,000 USD
 
Breguet Cushion Shaped Diver 200m Watch (New Arrival)

Breguet Cushion Shaped Diver 200m Watch (New Arrival)

Breguet Cushion Shaped Diver 200m Watch (New Arrival)

$58,000 USD
 
Audemars Piguet White Gold Rectangular Watch with Lapis Watch (New Arrival)

Audemars Piguet White Gold Rectangular Watch with Lapis Watch (New Arrival)

Audemars Piguet White Gold Rectangular Watch with Lapis Watch (New Arrival)

$18,000 USD
 
Cartier Yellow Gold Tank Normale Bracelet Watch  Ref. 78092 (New Arrival)

Cartier Yellow Gold Tank Normale Bracelet Watch Ref. 78092 (New Arrival)

Cartier Yellow Gold Tank Normale Bracelet Watch Ref. 78092 (New Arrival)

$36,000 USD
 
Cartier - Cartier Yellow Gold Tank Reverso (New Arrival) - The Keystone Watches

Cartier Yellow Gold Tank Reverso (New Arrival)

Cartier Yellow Gold Tank Reverso (New Arrival)

$34,500 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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