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Patek Philippe White Gold Calatrava Gobbi Milano Watch Ref. 3445 with Original Guarantee

Patek Philippe White Gold Calatrava Gobbi Milano Watch Ref. 3445 with Original Guarantee

Patek Philippe White Gold Calatrava Gobbi Milano Watch Ref. 3445 with Original Guarantee

Sold Out

 
Patek Philippe White Gold Perpetual Calendar Watch Ref. 3448

Patek Philippe White Gold Perpetual Calendar Watch Ref. 3448

Patek Philippe White Gold Perpetual Calendar Watch Ref. 3448

$975,000 USD
 
Patek Philippe Yellow Gold Breguet Numerals Ref. 438

Patek Philippe Yellow Gold Breguet Numerals Ref. 438

Patek Philippe Yellow Gold Breguet Numerals Ref. 438

$32,000 USD
 
Patek Philippe - Patek Philippe Yellow Gold Minute Repeater Porcelain Dial Watch Ref. 3979 - The Keystone Watches

Patek Philippe Yellow Gold Minute Repeater Porcelain Dial Watch Ref. 3979

Patek Philippe Yellow Gold Minute Repeater Porcelain Dial Watch Ref. 3979

$450,000 USD
 
Rolex Cosmograph Daytona Paul Newman Ref. 6239 with Original Box and Papers, 1969

Rolex Cosmograph Daytona Paul Newman Ref. 6239 with Original Box and Papers, 1969

Rolex Cosmograph Daytona Paul Newman Ref. 6239 with Original Box and Papers, 1969

Sold Out

 
Rolex - Rolex Oyster Perpetual Honeycomb Ovetone Watch Ref. 6098 - The Keystone Watches

Rolex Oyster Perpetual Honeycomb Ovetone Watch Ref. 6098

Rolex Oyster Perpetual Honeycomb Ovetone Watch Ref. 6098

$55,000 USD
 
Cartier Platinum Art Deco Watch, European Watch & Clock, 1923

Cartier Platinum Art Deco Watch, European Watch & Clock, 1923

Cartier Platinum Art Deco Watch, European Watch & Clock, 1923

$13,500 USD
 
Cartier Yellow Gold Pocket Watch, 1925

Cartier Yellow Gold Pocket Watch, 1925

Cartier Yellow Gold Pocket Watch, 1925

$10,800 USD
 
Rolex Yellow Gold Jean Claude Killy Watch Ref. 6036

Rolex Yellow Gold Jean Claude Killy Watch Ref. 6036

Rolex Yellow Gold Jean Claude Killy Watch Ref. 6036

$550,000 USD
 
Rolex Rose Gold Turnograph Oyster Perpetual Ref. 6309

Rolex Rose Gold Turnograph Oyster Perpetual Ref. 6309

Rolex Rose Gold Turnograph Oyster Perpetual Ref. 6309

$35,000 USD
 
Cartier Paris Nephrite Clock, 1930

Cartier Paris Nephrite Clock, 1930

Cartier Paris Nephrite Clock, 1930

$25,000 USD
 
Patek Philippe Yellow Gold First Series Ref. 3448 with Indelible Enamel and Original Certificate

Patek Philippe Yellow Gold First Series Ref. 3448 with Indelible Enamel and Original Certificate

Patek Philippe Yellow Gold First Series Ref. 3448 with Indelible Enamel and Original Certificate

Sold Out

 
Rolex - Rolex Yellow Gold Oysterquartz Day-Date Ref. 19158 with Sapphires and Diamonds - The Keystone Watches

Rolex Yellow Gold Oysterquartz Day-Date Ref. 19158 with Sapphires and Diamonds

Rolex Yellow Gold Oysterquartz Day-Date Ref. 19158 with Sapphires and Diamonds

$300,000 USD
 
Rolex Yellow Gold Day-Date Watch Green Stella Watch Ref. 1802

Rolex Yellow Gold Day-Date Watch Green Stella Watch Ref. 1802

Rolex Yellow Gold Day-Date Watch Green Stella Watch Ref. 1802

Sold Out

 
Rolex - Rolex Yellow Gold Octopussy Day-Date Ref. 1804 with Khanjar Emblem of Oman Watch in Original Box - The Keystone Watches

Rolex Yellow Gold Octopussy Day-Date Ref. 1804 with Khanjar Emblem of Oman Watch in Original Box

Rolex Yellow Gold Octopussy Day-Date Ref. 1804 with Khanjar Emblem of Oman Watch in Original Box

$300,000 USD
 
Vacheron Constantin Steel Chronograph Watch Ref. 4072, Circa 1943

Vacheron Constantin Steel Chronograph Watch Ref. 4072, Circa 1943

Vacheron Constantin Steel Chronograph Watch Ref. 4072, Circa 1943

$295,000 USD
 
Cartier - Cartier Yellow Gold Maxi Oval Watch, 1967 - The Keystone Watches

Cartier Yellow Gold Maxi Oval Watch, 1967

Cartier Yellow Gold Maxi Oval Watch, 1967

$295,000 USD
 
Cartier Platinum Tonneau Double Fuseau Ref. 2487, Macau Edition 1999

Cartier Platinum Tonneau Double Fuseau Ref. 2487, Macau Edition 1999

Cartier Platinum Tonneau Double Fuseau Ref. 2487, Macau Edition 1999

$37,000 USD
 
Audemars Piguet White Gold Cobra Ref. 5403 with Box and Papers

Audemars Piguet White Gold Cobra Ref. 5403 with Box and Papers

Audemars Piguet White Gold Cobra Ref. 5403 with Box and Papers

$48,000 USD
 
Rolex Yellow Gold Day-Date Green Stella Watch Ref. 18038

Rolex Yellow Gold Day-Date Green Stella Watch Ref. 18038

Rolex Yellow Gold Day-Date Green Stella Watch Ref. 18038

Sold Out

 
Cartier Yellow Gold Large Tank Cintree, Circa 1960s

Cartier Yellow Gold Large Tank Cintree, Circa 1960s

Cartier Yellow Gold Large Tank Cintree, Circa 1960s

$120,000 USD
 
Rolex - Rolex Yellow Gold Day-Date Ref. 1803 with Green Stella Dial - The Keystone Watches

Rolex Yellow Gold Day-Date Ref. 1803 with Green Stella Dial

Rolex Yellow Gold Day-Date Ref. 1803 with Green Stella Dial

$115,000 USD
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New Arrivals Preview
 
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
 
Audemars Piguet Royal Oak Dual Time Watch Ref. 25730 with Bright Yellow Dial (New Arrival)

Audemars Piguet Royal Oak Dual Time Watch Ref. 25730 with Bright Yellow Dial (New Arrival)

Audemars Piguet Royal Oak Dual Time Watch Ref. 25730 with Bright Yellow Dial (New Arrival)

$105,000 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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