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Patek Philippe - Patek Philippe White Gold Calatrava Watch Ref. 3429 - The Keystone Watches

Patek Philippe White Gold Calatrava Watch Ref. 3429

Patek Philippe White Gold Calatrava Watch Ref. 3429

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Patek Philippe - Patek Philippe White Gold Perpetual Engraved Ref. 5160 - The Keystone Watches

Patek Philippe White Gold Perpetual Engraved Ref. 5160

Patek Philippe White Gold Perpetual Engraved Ref. 5160

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Patek Philippe - Patek Philippe White Gold Automatic Backwind Golden Circle Watch Ref. 3586 - The Keystone Watches

Patek Philippe White Gold Automatic Backwind Golden Circle Watch Ref. 3586

Patek Philippe White Gold Automatic Backwind Golden Circle Watch Ref. 3586

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Minute Repeater Watch Ref. 5374 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Minute Repeater Watch Ref. 5374

Patek Philippe Platinum Perpetual Calendar Minute Repeater Watch Ref. 5374

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Patek Philippe - Patek Philippe Yellow Gold World Time Watch Ref. 5110 - The Keystone Watches

Patek Philippe Yellow Gold World Time Watch Ref. 5110

Patek Philippe Yellow Gold World Time Watch Ref. 5110

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Tourbillon Watch Ref. 5016 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Tourbillon Watch Ref. 5016

Patek Philippe Platinum Perpetual Calendar Tourbillon Watch Ref. 5016

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Patek Philippe - Patek Philippe Yellow Gold Calatrava Watch Ref. 5000 - The Keystone Watches

Patek Philippe Yellow Gold Calatrava Watch Ref. 5000

Patek Philippe Yellow Gold Calatrava Watch Ref. 5000

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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 Platinum Perpetual Calendar Watch Ref. 5970 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Watch Ref. 5970

Patek Philippe Platinum Perpetual Calendar Watch Ref. 5970

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Patek Philippe - Patek Philippe Ellipse White Gold Retailed by Gubelin Ref. 3589 - The Keystone Watches

Patek Philippe Ellipse White Gold Retailed by Gubelin Ref. 3589

Patek Philippe Ellipse White Gold Retailed by Gubelin Ref. 3589

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Patek Philippe Steel Aquanaut First Series Watch Ref. 5060

Patek Philippe Steel Aquanaut First Series Watch Ref. 5060

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Patek Philippe - Patek Philippe Steel Calatrava Ref. 3509 - The Keystone Watches

Patek Philippe Steel Calatrava Ref. 3509

Patek Philippe Steel Calatrava Ref. 3509

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Patek Philippe - Patek Philippe Yellow Gold Square Watch Ref. 5 from 1920 - The Keystone Watches

Patek Philippe Yellow Gold Square Watch Ref. 5 from 1920

Patek Philippe Yellow Gold Square Watch Ref. 5 from 1920

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Split Seconds Chronograph Ref. 5004 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Split Seconds Chronograph Ref. 5004

Patek Philippe Platinum Perpetual Calendar Split Seconds Chronograph Ref. 5004

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Patek Philippe - Patek Philippe White Gold Onyx Watch Ref. 3733 - The Keystone Watches

Patek Philippe White Gold Onyx Watch Ref. 3733

Patek Philippe White Gold Onyx Watch Ref. 3733

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Patek Philippe - Patek Philippe Yellow Gold Pocket Watch - The Keystone Watches

Patek Philippe Yellow Gold Pocket Watch

Patek Philippe Yellow Gold Pocket Watch

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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

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Patek Philippe - Patek Philippe Yellow Gold Calatrava Watch Ref. 3893 - The Keystone Watches

Patek Philippe Yellow Gold Calatrava Watch Ref. 3893

Patek Philippe Yellow Gold Calatrava Watch Ref. 3893

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Patek Philippe White Gold Baguette Diamond Watch Ref. 4260

Patek Philippe White Gold Baguette Diamond Watch Ref. 4260

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Patek Philippe Yellow Gold Diamond & Ruby Watch Ref. 3968

Patek Philippe Yellow Gold Diamond & Ruby Watch Ref. 3968

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Patek Philippe - Patek Philippe Steel Tonneau Watch Ref. 3579 - The Keystone Watches

Patek Philippe Steel Tonneau Watch Ref. 3579

Patek Philippe Steel Tonneau Watch Ref. 3579

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Patek Philippe - Patek Philippe Yellow Gold Mechanical Bracelet Watch Ref. 3528 - The Keystone Watches

Patek Philippe Yellow Gold Mechanical Bracelet Watch Ref. 3528

Patek Philippe Yellow Gold Mechanical Bracelet Watch Ref. 3528

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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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