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Patek Philippe - Patek Philippe Platinum Anniversary Nautilus Baguette Diamond Watch Ref. 5711 - The Keystone Watches

Patek Philippe Platinum Anniversary Nautilus Baguette Diamond Watch Ref. 5711

Patek Philippe Platinum Anniversary Nautilus Baguette Diamond Watch Ref. 5711

Sold Out

 
Patek Philippe - Patek Philippe Yellow Gold First Series Perpetual Calendar Watch Ref. 3940 - The Keystone Watches

Patek Philippe Yellow Gold First Series Perpetual Calendar Watch Ref. 3940

Patek Philippe Yellow Gold First Series Perpetual Calendar Watch Ref. 3940

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

Patek Philippe Platinum Perpetual Calendar Chrono Watch Ref. 5970

Patek Philippe Platinum Perpetual Calendar Chrono Watch Ref. 5970

Sold Out

 
Patek Philippe - Patek Philippe Aquanaut Automatic Watch Ref. 5066 - The Keystone Watches

Patek Philippe Aquanaut Automatic Watch Ref. 5066

Patek Philippe Aquanaut Automatic Watch Ref. 5066

Sold Out

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

Patek Philippe Nautilus Moonphase Watch Ref. 5712

Patek Philippe Nautilus Moonphase Watch Ref. 5712

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Patek Philippe - Patek Philippe Platinum Annual Calender Chronograph Watch Ref. 5905 - The Keystone Watches

Patek Philippe Platinum Annual Calender Chronograph Watch Ref. 5905

Patek Philippe Platinum Annual Calender Chronograph Watch Ref. 5905

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

Patek Philippe Nautilus Moonphase Watch Ref. 5712

Patek Philippe Nautilus Moonphase Watch Ref. 5712

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

Patek Philippe Stainless Steel Automatic Bracelet Watch Ref. 3580

Patek Philippe Stainless Steel Automatic Bracelet Watch Ref. 3580

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Patek Philippe - Patek Philippe Yellow Gold Perpetual Calendar Chronograph Ref. 3970 - The Keystone Watches

Patek Philippe Yellow Gold Perpetual Calendar Chronograph Ref. 3970

Patek Philippe Yellow Gold Perpetual Calendar Chronograph Ref. 3970

Sold Out

 
Patek Philippe - Patek Philippe White Gold Celestial Ref. 5102 - The Keystone Watches

Patek Philippe White Gold Celestial Ref. 5102

Patek Philippe White Gold Celestial Ref. 5102

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Patek Philippe - Patek Philippe Rose Gold Calatrava Watch Ref. 5119 - The Keystone Watches

Patek Philippe Rose Gold Calatrava Watch Ref. 5119

Patek Philippe Rose Gold Calatrava Watch Ref. 5119

Sold Out

 
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 Yellow Gold Nautilus Watch Ref. 3800 with Original Box and Papers - The Keystone Watches

Patek Philippe Yellow Gold Nautilus Watch Ref. 3800 with Original Box and Papers

Patek Philippe Yellow Gold Nautilus Watch Ref. 3800 with Original Box and Papers

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

Patek Philippe Yellow Gold Perpetual Calendar Watch Ref. 3940

Patek Philippe Yellow Gold Perpetual Calendar Watch Ref. 3940

Sold Out

 
Patek Philippe - Patek Philippe White Gold Calatrava Automatic Watch Ref. 6000 - The Keystone Watches

Patek Philippe White Gold Calatrava Automatic Watch Ref. 6000

Patek Philippe White Gold Calatrava Automatic Watch Ref. 6000

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Chrono Watch Ref. 3970 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Chrono Watch Ref. 3970

Patek Philippe Platinum Perpetual Calendar Chrono Watch Ref. 3970

Sold Out

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

Patek Philippe Platinum Annual Calendar Chrono Watch Ref. 5960

Patek Philippe Platinum Annual Calendar Chrono Watch Ref. 5960

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Patek Philippe - Patek Philippe Rose Gold Annual Calendar Chrono Watch Ref. 5960 - The Keystone Watches

Patek Philippe Rose Gold Annual Calendar Chrono Watch Ref. 5960

Patek Philippe Rose Gold Annual Calendar Chrono Watch Ref. 5960

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

Patek Philippe Yellow Gold Annual Calendar Watch Ref. 5035

Patek Philippe Yellow Gold Annual Calendar Watch Ref. 5035

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Patek Philippe - Patek Philippe Platinum & Rose Gold Celestial Watch Ref. 5102 Retailed by Tiffany & Co. - The Keystone Watches

Patek Philippe Platinum & Rose Gold Celestial Watch Ref. 5102 Retailed by Tiffany & Co.

Patek Philippe Platinum & Rose Gold Celestial Watch Ref. 5102 Retailed by Tiffany & Co.

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Patek Philippe - Patek Philippe Aquanaut Tiffany & Co Watch Ref. 5167 - The Keystone Watches

Patek Philippe Aquanaut Tiffany & Co Watch Ref. 5167

Patek Philippe Aquanaut Tiffany & Co Watch Ref. 5167

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Patek Philippe - Patek Philippe Platinum Chronograph Watch Ref. 5070 - The Keystone Watches

Patek Philippe Platinum Chronograph Watch Ref. 5070

Patek Philippe Platinum Chronograph Watch Ref. 5070

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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
 
Audemars Piguet John Shaeffer Star Wheel Minute Repeater Ref. 25881OR (New Arrival)

Audemars Piguet John Shaeffer Star Wheel Minute Repeater Ref. 25881OR (New Arrival)

Audemars Piguet John Shaeffer Star Wheel Minute Repeater Ref. 25881OR (New Arrival)

$300,000 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
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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