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Patek Philippe Yellow Gold Golden Ellipse Ref. 3566 Retailed by Tiffany & Co. (New Arrival)

Patek Philippe Yellow Gold Golden Ellipse Ref. 3566 Retailed by Tiffany & Co. (New Arrival)

Patek Philippe Yellow Gold Golden Ellipse Ref. 3566 Retailed by Tiffany & Co. (New Arrival)

Sold Out

 
Breguet White Gold Classique Automatic Watch, Retailed by Chaumet (New Arrival)

Breguet White Gold Classique Automatic Watch, Retailed by Chaumet (New Arrival)

Breguet White Gold Classique Automatic Watch, Retailed by Chaumet (New Arrival)

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Patek Philippe Yellow Gold Chronograph Two-Tone Dial Watch Ref. 1463

Patek Philippe Yellow Gold Chronograph Two-Tone Dial Watch Ref. 1463

Patek Philippe Yellow Gold Chronograph Two-Tone Dial Watch Ref. 1463

$300,000 USD
 
Patek Philippe Rose Gold Perpetual Calendar Ref. 3945 (New Arrival)

Patek Philippe Rose Gold Perpetual Calendar Ref. 3945 (New Arrival)

Patek Philippe Rose Gold Perpetual Calendar Ref. 3945 (New Arrival)

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Rolex White Gold Day-Date Ref. 18039 with Attractive Tropical Dial (New Arrival)

Rolex White Gold Day-Date Ref. 18039 with Attractive Tropical Dial (New Arrival)

Rolex White Gold Day-Date Ref. 18039 with Attractive Tropical Dial (New Arrival)

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Patek Philippe Calatrava Ref. 3579 with Box and Service Papers (New Arrival)

Patek Philippe Calatrava Ref. 3579 with Box and Service Papers (New Arrival)

Patek Philippe Calatrava Ref. 3579 with Box and Service Papers (New Arrival)

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Rolex Rose Gold Chronogrape Anti-Magnetique Piccolino Ref. 3055

Rolex Rose Gold Chronogrape Anti-Magnetique Piccolino Ref. 3055

Rolex Rose Gold Chronogrape Anti-Magnetique Piccolino Ref. 3055

Sold Out

 
Breguet Yellow Gold Empire Watch, Circa 1955

Breguet Yellow Gold Empire Watch, Circa 1955

Breguet Yellow Gold Empire Watch, Circa 1955

$97,500 USD
 
Patek Philippe Steel Calatrava Ref. 3509 with Archive Paper (New Arrival)

Patek Philippe Steel Calatrava Ref. 3509 with Archive Paper (New Arrival)

Patek Philippe Steel Calatrava Ref. 3509 with Archive Paper (New Arrival)

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Audemars Piguet Platinum Jump Hour Minute Repeater Ref. 26151 (New Arrival)

Audemars Piguet Platinum Jump Hour Minute Repeater Ref. 26151 (New Arrival)

Audemars Piguet Platinum Jump Hour Minute Repeater Ref. 26151 (New Arrival)

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Audemars Piguet - Audemars Piguet White Gold Jules Audemars Ref. 15093BC (New Arrival) - The Keystone Watches

Audemars Piguet White Gold Jules Audemars Ref. 15093BC (New Arrival)

Audemars Piguet White Gold Jules Audemars Ref. 15093BC (New Arrival)

$10,500 USD
 
Patek Philippe World Time Flyback Chronograph Ref. 5935A-001 with Box and Papers (New Arrival)

Patek Philippe World Time Flyback Chronograph Ref. 5935A-001 with Box and Papers (New Arrival)

Patek Philippe World Time Flyback Chronograph Ref. 5935A-001 with Box and Papers (New Arrival)

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Patek Philippe White Gold Perpetual Calendar Chronograph Ref. 5204 (New Arrival)

Patek Philippe White Gold Perpetual Calendar Chronograph Ref. 5204 (New Arrival)

Patek Philippe White Gold Perpetual Calendar Chronograph Ref. 5204 (New Arrival)

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A. Lange & Sohne White Gold Lange 1 Ref. 101.039 (New Arrival)

A. Lange & Sohne White Gold Lange 1 Ref. 101.039 (New Arrival)

A. Lange & Sohne White Gold Lange 1 Ref. 101.039 (New Arrival)

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Rolex White Gold GMT-Master II Ref. 116759SA (New Arrival)

Rolex White Gold GMT-Master II Ref. 116759SA (New Arrival)

Rolex White Gold GMT-Master II Ref. 116759SA (New Arrival)

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Patek Philippe White Gold Calatrava Ref. 5108G (New Arrival)

Patek Philippe White Gold Calatrava Ref. 5108G (New Arrival)

Patek Philippe White Gold Calatrava Ref. 5108G (New Arrival)

Sold Out

 
A. Lange & Sohne White Gold Little Lange 1 Ref. 181.839 (New Arrival)

A. Lange & Sohne White Gold Little Lange 1 Ref. 181.839 (New Arrival)

A. Lange & Sohne White Gold Little Lange 1 Ref. 181.839 (New Arrival)

Sold Out

 
A. Lange & Sohne 330.026E White Gold Annual Calendar (New Arrival)

A. Lange & Sohne 330.026E White Gold Annual Calendar (New Arrival)

A. Lange & Sohne 330.026E White Gold Annual Calendar (New Arrival)

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Patek Philippe Yellow Gold Golden Ellipse Ref. 3604 with Copper Dial, Recently Serviced

Patek Philippe Yellow Gold Golden Ellipse Ref. 3604 with Copper Dial, Recently Serviced

Patek Philippe Yellow Gold Golden Ellipse Ref. 3604 with Copper Dial, Recently Serviced

Sold Out

 
Rolex Pink Gold Chronograph Watch Ref. 4062

Rolex Pink Gold Chronograph Watch Ref. 4062

Rolex Pink Gold Chronograph Watch Ref. 4062

$54,000 USD
 
Breguet Souscription Grand Complication Set Watch and Pocket Watch, Circa 1992

Breguet Souscription Grand Complication Set Watch and Pocket Watch, Circa 1992

Breguet Souscription Grand Complication Set Watch and Pocket Watch, Circa 1992

$225,000 USD
 
Patek Philippe Yellow Gold Perpetual Calendar Watch Ref. 1518, Made in 1951

Patek Philippe Yellow Gold Perpetual Calendar Watch Ref. 1518, Made in 1951

Patek Philippe Yellow Gold Perpetual Calendar Watch Ref. 1518, Made in 1951

"Price upon request"
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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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