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Patek Philippe - Patek Philippe Yellow Gold Watch Ref. 3854 - The Keystone Watches

Patek Philippe Yellow Gold Watch Ref. 3854

Patek Philippe Yellow Gold Watch Ref. 3854

Sold Out

 
Patek Philippe - Patek Philippe Yellow Gold Watch Ref. 4890 - The Keystone Watches

Patek Philippe Yellow Gold Watch Ref. 4890

Patek Philippe Yellow Gold Watch Ref. 4890

Sold Out

 

Patek Philippe Yellow Gold World Time Ref. 5110

Patek Philippe Yellow Gold World Time Ref. 5110

Sold Out

 
Patek Philippe - Patek Philippe Yellow Gold World Time Watch Ref. 1415 - The Keystone Watches

Patek Philippe Yellow Gold World Time Watch Ref. 1415

Patek Philippe Yellow Gold World Time Watch Ref. 1415

Sold Out

 
Patek Philippe - Patek Philippe Yellow Gold World Time Watch Ref. 1415 - The Keystone Watches

Patek Philippe Yellow Gold World Time Watch Ref. 1415

Patek Philippe Yellow Gold World Time Watch Ref. 1415

"Price upon request"
 
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

Sold Out

 
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

Sold Out

 
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

Sold Out

 
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

Sold Out

 
Patek Philippe - Patek Philippe Yellow Gold World Time Watch Ref. 5110, Made for Doha, Qatar - The Keystone Watches

Patek Philippe Yellow Gold World Time Watch Ref. 5110, Made for Doha, Qatar

Patek Philippe Yellow Gold World Time Watch Ref. 5110, Made for Doha, Qatar

Sold Out

 
Patek Philippe - Patek Philippe Yellow Gold World Time Watch Ref. 5110, with Original Box and Papers - The Keystone Watches

Patek Philippe Yellow Gold World Time Watch Ref. 5110, with Original Box and Papers

Patek Philippe Yellow Gold World Time Watch Ref. 5110, with Original Box and Papers

Sold Out

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

Patek Philippe Yellow Gold, Emerald Nautilus Diamond Watch Ref. 3800

Patek Philippe Yellow Gold, Emerald Nautilus Diamond Watch Ref. 3800

Sold Out

 
Patek Phillipe Rose Gold Calatrava Cufflinks (Objet)

Patek Phillipe Rose Gold Calatrava Cufflinks (Objet)

Patek Phillipe Rose Gold Calatrava Cufflinks (Objet)

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Patek Philippe - Patek Phillipe White Gold Ellipse Ref. 3548 - The Keystone Watches

Patek Phillipe White Gold Ellipse Ref. 3548

Patek Phillipe White Gold Ellipse Ref. 3548

Sold Out

 
Patek Philippe - Patek Phillipe White Gold Grand Ellipse Ref. 3589 - The Keystone Watches

Patek Phillipe White Gold Grand Ellipse Ref. 3589

Patek Phillipe White Gold Grand Ellipse Ref. 3589

Sold Out

 
Patek Phillipe Yellow Gold Gondolo Ref. 5024

Patek Phillipe Yellow Gold Gondolo Ref. 5024

Patek Phillipe Yellow Gold Gondolo Ref. 5024

Sold Out

 
Patek Philippe - Patek Phillipe Yellow Gold Gondolo Watch Ref. 3842 - The Keystone Watches

Patek Phillipe Yellow Gold Gondolo Watch Ref. 3842

Patek Phillipe Yellow Gold Gondolo Watch Ref. 3842

$10,250 USD
 
Patek Phillipe Yellow Gold Mini Nautilus Ref. 4700

Patek Phillipe Yellow Gold Mini Nautilus Ref. 4700

Patek Phillipe Yellow Gold Mini Nautilus Ref. 4700

Sold Out

 
Patek Philippe - Patek Phlippe White Gold Bracelet Watch Ref. 3430 - The Keystone Watches

Patek Phlippe White Gold Bracelet Watch Ref. 3430

Patek Phlippe White Gold Bracelet Watch Ref. 3430

Sold Out

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

Patek Phlippe Yellow Gold Nautilus Automatic Watch Ref. 3800

Patek Phlippe Yellow Gold Nautilus Automatic Watch Ref. 3800

Sold Out

 
Patek Steel Calatrava Ref. 3718, Made for 150th Anniversary (New Arrival)

Patek Steel Calatrava Ref. 3718, Made for 150th Anniversary (New Arrival)

Patek Steel Calatrava Ref. 3718, Made for 150th Anniversary (New Arrival)

$24,000 USD
 

Patek Steel UFO Automatic Backwind Watch Ref. 3580 with Blue Dial (New Arrival)

Patek Steel UFO Automatic Backwind Watch Ref. 3580 with Blue Dial (New Arrival)

Sold Out

 

Patek White Gold and Onyx Integrated Watch Ref. 4429

Patek White Gold and Onyx Integrated Watch Ref. 4429

Sold Out

 
Patek White Gold Calatrava Watch Ref. 570

Patek White Gold Calatrava Watch Ref. 570

Patek White Gold Calatrava Watch Ref. 570

$29,500 USD
 

Patek White Gold Golden Ellipse Watch Ref. 3594

Patek White Gold Golden Ellipse Watch Ref. 3594

Sold Out

 

Patek White Gold Pocket Watch with Diamond Bezel (New Arrival)

Patek White Gold Pocket Watch with Diamond Bezel (New Arrival)

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Patek White Gold Vintage Ellipse with Original Diamonds Ref. 4177

Patek White Gold Vintage Ellipse with Original Diamonds Ref. 4177

Patek White Gold Vintage Ellipse with Original Diamonds Ref. 4177

Sold Out

 
Philippe Dufour - Philippe Dufour Platinum Simplicity Watch - The Keystone Watches

Philippe Dufour Platinum Simplicity Watch

Philippe Dufour Platinum Simplicity Watch

Sold Out

 
Philippe Dufour - Philippe Dufour White Gold Simplicity Watch, with Original Box and Papers - The Keystone Watches

Philippe Dufour White Gold Simplicity Watch, with Original Box and Papers

Philippe Dufour White Gold Simplicity Watch, with Original Box and Papers

Sold Out

 
Piaget - Piaget Ladies White Gold Lapis Diamond Bracelet Watch - The Keystone Watches

Piaget Ladies White Gold Lapis Diamond Bracelet Watch

Piaget Ladies White Gold Lapis Diamond Bracelet Watch

$12,000 USD
 
Piaget - Piaget Lapis, Onyx and Sodalite Hexagon Watch (NEW ARRIVAL) - The Keystone Watches

Piaget Lapis, Onyx and Sodalite Hexagon Watch (NEW ARRIVAL)

Piaget Lapis, Onyx and Sodalite Hexagon Watch (NEW ARRIVAL)

Sold Out

 
Piaget - Piaget Onyx Diamond Watch - The Keystone Watches

Piaget Onyx Diamond Watch

Piaget Onyx Diamond Watch

Sold Out

 
Piaget - Piaget Platinum Altiplano Ultra Thin Watch Ref. G0A27009 - The Keystone Watches

Piaget Platinum Altiplano Ultra Thin Watch Ref. G0A27009

Piaget Platinum Altiplano Ultra Thin Watch Ref. G0A27009

Sold Out

 
Piaget Platinum Georges Piaget Watch Ref 91000, One of 100 Made

Piaget Platinum Georges Piaget Watch Ref 91000, One of 100 Made

Piaget Platinum Georges Piaget Watch Ref 91000, One of 100 Made

$8,900 USD
 
Piaget Rose Gold Altiplano Ref. G0A34113

Piaget Rose Gold Altiplano Ref. G0A34113

Piaget Rose Gold Altiplano Ref. G0A34113

Sold Out

 

Piaget Rose Gold Altiplano Skeleton Watch Ref. G0A41011

Piaget Rose Gold Altiplano Skeleton Watch Ref. G0A41011

Sold Out

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New Arrivals Preview
 
Patek Philippe 565 Retailed by Hausmann & Co. (New Arrival)

Patek Philippe 565 Retailed by Hausmann & Co. (New Arrival)

Patek Philippe 565 Retailed by Hausmann & Co. (New Arrival)

$105,000 USD
 
Cartier Yellow Gold Tonneau Watch, Paris 1991 (New Arrival)

Cartier Yellow Gold Tonneau Watch, Paris 1991 (New Arrival)

Cartier Yellow Gold Tonneau Watch, Paris 1991 (New Arrival)

$11,500 USD
 
Audemars Piguet White Gold Diamond & Sapphire Watch Ref. 14781 with Original Warranty (New Arrival)

Audemars Piguet White Gold Diamond & Sapphire Watch Ref. 14781 with Original Warranty (New Arrival)

Audemars Piguet White Gold Diamond & Sapphire Watch Ref. 14781 with Original Warranty (New Arrival)

$58,000 USD
 
Rolex - Rolex Yellow Gold Cellini Watch Ref. 4934/8 with Logo Bracelet (New Arrival) - The Keystone Watches

Rolex Yellow Gold Cellini Watch Ref. 4934/8 with Logo Bracelet (New Arrival)

Rolex Yellow Gold Cellini Watch Ref. 4934/8 with Logo Bracelet (New Arrival)

$15,500 USD
 
Rolex White Gold Cellini Ref. 4083 (New Arrival)

Rolex White Gold Cellini Ref. 4083 (New Arrival)

Rolex White Gold Cellini Ref. 4083 (New Arrival)

$4,500 USD
 
Patek Philippe White Gold Calatrava Watch Ref. 4189 (New Arrival)

Patek Philippe White Gold Calatrava Watch Ref. 4189 (New Arrival)

Patek Philippe White Gold Calatrava Watch Ref. 4189 (New Arrival)

$9,800 USD
 
Patek Philippe White Gold Calatrava Watch Ref. 3445 in Top Condition (New Arrival)

Patek Philippe White Gold Calatrava Watch Ref. 3445 in Top Condition (New Arrival)

Patek Philippe White Gold Calatrava Watch Ref. 3445 in Top Condition (New Arrival)

$15,000 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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