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Patek Philippe - Patek Philippe Annual Calendar Moonphase Watch Ref. 5135 Retailed by Tiffany & Co. - The Keystone Watches

Patek Philippe Annual Calendar Moonphase Watch Ref. 5135 Retailed by Tiffany & Co.

Patek Philippe Annual Calendar Moonphase Watch Ref. 5135 Retailed by Tiffany & Co.

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A. Lange & Sohne - A. Lange & Sohne Platinum Datograph Up Down Watch Ref. 405.035 - The Keystone Watches

A. Lange & Sohne Platinum Datograph Up Down Watch Ref. 405.035

A. Lange & Sohne Platinum Datograph Up Down Watch Ref. 405.035

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Patek Philippe - Patek Philippe White Gold Watch Ref. 570 with Archive Papers - The Keystone Watches

Patek Philippe White Gold Watch Ref. 570 with Archive Papers

Patek Philippe White Gold Watch Ref. 570 with Archive Papers

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Audemars Piguet - Audemars Piguet White Gold Diamond Strap Watch - The Keystone Watches

Audemars Piguet White Gold Diamond Strap Watch

Audemars Piguet White Gold Diamond Strap Watch

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Patek Philippe - Patek Philippe White Gold World Time Watch Ref. 5230 - The Keystone Watches

Patek Philippe White Gold World Time Watch Ref. 5230

Patek Philippe White Gold World Time Watch Ref. 5230

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Patek Philippe - Patek Philippe Platinum Nautilus Watch Ref. 5711 - The Keystone Watches

Patek Philippe Platinum Nautilus Watch Ref. 5711

Patek Philippe Platinum Nautilus Watch Ref. 5711

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Patek Philippe - Patek Philippe Rose Gold Calatrava Enamel Dial Watch Ref. 5115 - The Keystone Watches

Patek Philippe Rose Gold Calatrava Enamel Dial Watch Ref. 5115

Patek Philippe Rose Gold Calatrava Enamel Dial Watch Ref. 5115

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Patek Philippe - Patek Philippe Nautilus Jumbo Watch Ref. 3700 with Original Warranty - The Keystone Watches

Patek Philippe Nautilus Jumbo Watch Ref. 3700 with Original Warranty

Patek Philippe Nautilus Jumbo Watch Ref. 3700 with Original Warranty

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Audemars Piguet - Audemars Piguet Royal Oak Jumbo Jubilee Watch Ref. 14802 - The Keystone Watches

Audemars Piguet Royal Oak Jumbo Jubilee Watch Ref. 14802

Audemars Piguet Royal Oak Jumbo Jubilee Watch Ref. 14802

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Vacheron Constantin - Vacheron Constantin White Gold Watch Ref. 6351 with Original Box and Papers - The Keystone Watches

Vacheron Constantin White Gold Watch Ref. 6351 with Original Box and Papers

Vacheron Constantin White Gold Watch Ref. 6351 with Original Box and Papers

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Rolex - Rolex White Gold Day-Date Watch Ref. 1803 with Original Paper - The Keystone Watches

Rolex White Gold Day-Date Watch Ref. 1803 with Original Paper

Rolex White Gold Day-Date Watch Ref. 1803 with Original Paper

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Rolex - Rolex GMT-Master Watch Ref. 1675 Circa 1977 - The Keystone Watches

Rolex GMT-Master Watch Ref. 1675 Circa 1977

Rolex GMT-Master Watch Ref. 1675 Circa 1977

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Patek Philippe - Patek Philippe Platinum Perpetual Ruby Chronograph Watch Ref. 5271 - The Keystone Watches

Patek Philippe Platinum Perpetual Ruby Chronograph Watch Ref. 5271

Patek Philippe Platinum Perpetual Ruby Chronograph Watch Ref. 5271

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Patek Philippe - Patek Philippe Platinum Enamel Dial Minute Repeater Watch Ref. 5078 - The Keystone Watches

Patek Philippe Platinum Enamel Dial Minute Repeater Watch Ref. 5078

Patek Philippe Platinum Enamel Dial Minute Repeater Watch Ref. 5078

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Patek Philippe - Patek Philippe Rose Gold Chronograph Ref. 5170 - The Keystone Watches

Patek Philippe Rose Gold Chronograph Ref. 5170

Patek Philippe Rose Gold Chronograph Ref. 5170

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Audemars Piguet - Audemars Piguet Royal Oak Offshore Chronograph Watch Ref. 26470 - The Keystone Watches

Audemars Piguet Royal Oak Offshore Chronograph Watch Ref. 26470

Audemars Piguet Royal Oak Offshore Chronograph Watch Ref. 26470

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Audemars Piguet - Audemars Piguet Royal Oak Offshore Diver Watch Ref. 15710 - The Keystone Watches

Audemars Piguet Royal Oak Offshore Diver Watch Ref. 15710

Audemars Piguet Royal Oak Offshore Diver Watch Ref. 15710

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Vacheron Constantin - Vacheron Constantin Rose Gold Saltarello Jump Hour Watch Ref. 43041 - The Keystone Watches

Vacheron Constantin Rose Gold Saltarello Jump Hour Watch Ref. 43041

Vacheron Constantin Rose Gold Saltarello Jump Hour Watch Ref. 43041

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Audemars Piguet - Audemars Piguet White Gold Cushion-Shaped Watch - The Keystone Watches

Audemars Piguet White Gold Cushion-Shaped Watch

Audemars Piguet White Gold Cushion-Shaped Watch

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

Patek Philippe Steel Tonneau Waterproof Watch Ref. 3579

Patek Philippe Steel Tonneau Waterproof Watch Ref. 3579

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Audemars Piguet - Audemars Piguet Rose Gold Skeletonized Ferrari Racing Car Watch, Ref. 14677 - The Keystone Watches

Audemars Piguet Rose Gold Skeletonized Ferrari Racing Car Watch, Ref. 14677

Audemars Piguet Rose Gold Skeletonized Ferrari Racing Car Watch, Ref. 14677

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Patek Philippe - Patek Philiipe White Gold Perpetual Calendar Watch Ref. 5140 - The Keystone Watches

Patek Philiipe White Gold Perpetual Calendar Watch Ref. 5140

Patek Philiipe White Gold Perpetual Calendar Watch Ref. 5140

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New Arrivals Preview
 
Patek Philippe Yellow Gold Tonneau Ref. 2469 (New Arrival)

Patek Philippe Yellow Gold Tonneau Ref. 2469 (New Arrival)

Patek Philippe Yellow Gold Tonneau Ref. 2469 (New Arrival)

$19,800 USD
 
Tissot Steel Chronograph with Black Gilt Dial (New Arrival)

Tissot Steel Chronograph with Black Gilt Dial (New Arrival)

Tissot Steel Chronograph with Black Gilt Dial (New Arrival)

$16,000 USD
 
Breguet Steel Chronograph Watch, 1940s (New Arrival)

Breguet Steel Chronograph Watch, 1940s (New Arrival)

Breguet Steel Chronograph Watch, 1940s (New Arrival)

$75,000 USD
 
Cartier Yellow Gold Bracelet Watch (New Arrival)

Cartier Yellow Gold Bracelet Watch (New Arrival)

Cartier Yellow Gold Bracelet Watch (New Arrival)

$30,000 USD
 
Patek Philippe Yellow Gold Calatrava Breguet Numerals Ref. 2533 (New Arrival)

Patek Philippe Yellow Gold Calatrava Breguet Numerals Ref. 2533 (New Arrival)

Patek Philippe Yellow Gold Calatrava Breguet Numerals Ref. 2533 (New Arrival)

$105,000 USD
 
Vacheron Constantin - Vacheron Constantin Yellow Gold Chronograph Watch Ref. 4178 with Important Provenance (New Arrival) - The Keystone Watches

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 - Audemars Piguet White Gold Rectangular Watch with Lapis Watch (New Arrival) - The Keystone Watches

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
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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