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Patek Philippe Yellow Gold Diamond Watch Ref. 4508 in Like New Condition (NEW ARRIVAL)

Patek Philippe Yellow Gold Diamond Watch Ref. 4508 in Like New Condition (NEW ARRIVAL)

Sold Out

 

Patek Philippe Yellow Gold Watch (NEW ARRIVAL)

Patek Philippe Yellow Gold Watch (NEW ARRIVAL)

Sold Out

 

Patek Philippe Yellow Gold Nautilus Watch Ref. 3800

Patek Philippe Yellow Gold Nautilus Watch Ref. 3800

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Patek Philippe Yellow Gold Pocket Watch Ref. 652 Retailed by Tiffany & Co.

Patek Philippe Yellow Gold Pocket Watch Ref. 652 Retailed by Tiffany & Co.

Patek Philippe Yellow Gold Pocket Watch Ref. 652 Retailed by Tiffany & Co.

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Patek Philippe Yellow Gold Chronmetro Gondolo

Patek Philippe Yellow Gold Chronmetro Gondolo

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Patek Philippe Yellow Gold Calatrava Watch Ref. 2573, Retailed by Cartier

Patek Philippe Yellow Gold Calatrava Watch Ref. 2573, Retailed by Cartier

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Patek Philippe Yellow Gold Calatrava Ref. 96

Patek Philippe Yellow Gold Calatrava Ref. 96

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Patek Philippe Yellow Gold Diamond Onyx Watch Ref. 3625

Patek Philippe Yellow Gold Diamond Onyx Watch Ref. 3625

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Patek Philippe Yellow Gold Nautilus Watch Ref. 3800 retailed by Gubelin in Top Condition

Patek Philippe Yellow Gold Nautilus Watch Ref. 3800 retailed by Gubelin in Top Condition

Sold Out

 
Patek Philippe Platinum Perpetual Calendar Split Seconds Chronograph Ref. 5004P with Unique Red Numeral 2 (Private Sale)

Patek Philippe Platinum Perpetual Calendar Split Seconds Chronograph Ref. 5004P with Unique Red Numeral 2 (Private Sale)

Patek Philippe Platinum Perpetual Calendar Split Seconds Chronograph Ref. 5004P with Unique Red Numeral 2 (Private Sale)

"Price upon request"
 
Patek Philippe Platinum Perpetual Calendar Minute Repeater Ref. 5307 (Private Sale)

Patek Philippe Platinum Perpetual Calendar Minute Repeater Ref. 5307 (Private Sale)

Patek Philippe Platinum Perpetual Calendar Minute Repeater Ref. 5307 (Private Sale)

"Price upon request"
 
Patek Philippe White Gold Calatrava Handcraft Watch Ref. 5177 (Private Sale)

Patek Philippe White Gold Calatrava Handcraft Watch Ref. 5177 (Private Sale)

Patek Philippe White Gold Calatrava Handcraft Watch Ref. 5177 (Private Sale)

"Price upon request"
 
Patek Philippe Yellow Gold Perpetual Calendar Watch Ref. 3448, Possibly Unique (Private Sale)

Patek Philippe Yellow Gold Perpetual Calendar Watch Ref. 3448, Possibly Unique (Private Sale)

Patek Philippe Yellow Gold Perpetual Calendar Watch Ref. 3448, Possibly Unique (Private Sale)

"Price upon request"
 

Patek Philippe Yellow Gold Calatrava Ref. 2426

Patek Philippe Yellow Gold Calatrava Ref. 2426

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Patek Philippe White Gold Calatrava Watch Ref. 570, Top Condition

Patek Philippe White Gold Calatrava Watch Ref. 570, Top Condition

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Patek Philippe White Gold Calatrava Handcraft Watch Ref. 5177

Patek Philippe White Gold Calatrava Handcraft Watch Ref. 5177

Patek Philippe White Gold Calatrava Handcraft Watch Ref. 5177

"Price upon request"
 
Patek Philippe White Gold Chronograph Ref. 5071 (Private Sale)

Patek Philippe White Gold Chronograph Ref. 5071 (Private Sale)

Patek Philippe White Gold Chronograph Ref. 5071 (Private Sale)

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Patek Philippe Gilbert Albert Diamond Cover Watch Ref. 3266  (Private Sale)

Patek Philippe Gilbert Albert Diamond Cover Watch Ref. 3266 (Private Sale)

Patek Philippe Gilbert Albert Diamond Cover Watch Ref. 3266 (Private Sale)

"Price upon request"
 

Patek Philippe Perpetual Calendar Watch Ref. 3945

Patek Philippe Perpetual Calendar Watch Ref. 3945

Sold Out

 

Patek Philippe White Gold Ellipse Watch Ref. 3548

Patek Philippe White Gold Ellipse Watch Ref. 3548

Sold Out

 

Patek Philippe White Gold Ellipse Watch Ref. 3577

Patek Philippe White Gold Ellipse Watch Ref. 3577

Sold Out

 

Patek Philippe Platinum Handcraft Watch Ref. 5077 with Enamel Iris and Night Fireflies

Patek Philippe Platinum Handcraft Watch Ref. 5077 with Enamel Iris and Night Fireflies

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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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