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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Minute Repeater Ref. 5074, Single Sealed - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Minute Repeater Ref. 5074, Single Sealed

Patek Philippe Platinum Perpetual Calendar Minute Repeater Ref. 5074, Single Sealed

"Price upon request"
 

Patek Philippe Platinum World Time Watch Ref. 5131, Single Sealed

Patek Philippe Platinum World Time Watch Ref. 5131, Single Sealed

Sold Out

 
Patek Philippe - Patek Philippe Rose Gold Perpetual Minute Repeater Watch Ref. 5074, Double Sealed - The Keystone Watches

Patek Philippe Rose Gold Perpetual Minute Repeater Watch Ref. 5074, Double Sealed

Patek Philippe Rose Gold Perpetual Minute Repeater Watch Ref. 5074, Double Sealed

Sold Out

 
Patek Philippe - Patek Philippe Platinum Chronograph Watch Ref. 5070, Single Sealed - The Keystone Watches

Patek Philippe Platinum Chronograph Watch Ref. 5070, Single Sealed

Patek Philippe Platinum Chronograph Watch Ref. 5070, Single Sealed

Sold Out

 

Patek Philippe Rose Gold 10-Day Tourbillon Watch Ref. 5101, Single Sealed

Patek Philippe Rose Gold 10-Day Tourbillon Watch Ref. 5101, Single Sealed

Sold Out

 
Patek Philippe - Patek Philippe Platinum Chronograph Watch Ref. 5070, Double Sealed - The Keystone Watches

Patek Philippe Platinum Chronograph Watch Ref. 5070, Double Sealed

Patek Philippe Platinum Chronograph Watch Ref. 5070, Double Sealed

Sold Out

 
Patek Philippe - Patek Philippe White Gold Chronograph Ref. 5070G, Unworn & Single Sealed - The Keystone Watches

Patek Philippe White Gold Chronograph Ref. 5070G, Unworn & Single Sealed

Patek Philippe White Gold Chronograph Ref. 5070G, Unworn & Single Sealed

Sold Out

 
Patek Philippe - Patek Philippe Platinum Handcrafts Cloisonne Peacock Watch, Ref. 5077 Unworn and Double Sealed - The Keystone Watches

Patek Philippe Platinum Handcrafts Cloisonne Peacock Watch, Ref. 5077 Unworn and Double Sealed

Patek Philippe Platinum Handcrafts Cloisonne Peacock Watch, Ref. 5077 Unworn and Double Sealed

Sold Out

 
Patek Philippe - Patek Philippe Rose Gold Grand Complication Watch Ref. 5207, Unworn & Double Sealed - The Keystone Watches

Patek Philippe Rose Gold Grand Complication Watch Ref. 5207, Unworn & Double Sealed

Patek Philippe Rose Gold Grand Complication Watch Ref. 5207, Unworn & Double Sealed

Sold Out

 
Patek Philippe - Patek Philippe Platinum Grand Complication Watch Ref. 5207, Unworn & Double Sealed - The Keystone Watches

Patek Philippe Platinum Grand Complication Watch Ref. 5207, Unworn & Double Sealed

Patek Philippe Platinum Grand Complication Watch Ref. 5207, Unworn & Double Sealed

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Patek Philippe - Patek Philippe White Gold Annual Calendar Tiffany & Co. Watch Ref. 5396, Singled Sealed - The Keystone Watches

Patek Philippe White Gold Annual Calendar Tiffany & Co. Watch Ref. 5396, Singled Sealed

Patek Philippe White Gold Annual Calendar Tiffany & Co. Watch Ref. 5396, Singled Sealed

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Patek Philippe - Patek Philippe Platinum Monopusher Split Seconds Chrono Ref. 5959, Double Sealed and Unworn - The Keystone Watches

Patek Philippe Platinum Monopusher Split Seconds Chrono Ref. 5959, Double Sealed and Unworn

Patek Philippe Platinum Monopusher Split Seconds Chrono Ref. 5959, Double Sealed and Unworn

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Patek Philippe - Patek Philippe Platinum Perpetual Split Seconds Chrono Watch Ref. 5204 in Double Sealed and Unworn Condition - The Keystone Watches

Patek Philippe Platinum Perpetual Split Seconds Chrono Watch Ref. 5204 in Double Sealed and Unworn Condition

Patek Philippe Platinum Perpetual Split Seconds Chrono Watch Ref. 5204 in Double Sealed and Unworn Condition

Sold Out

 
Patek Philippe - Patek Philippe Nautilus Moonphase Watch Ref. 5726 in Double Sealed and Unworn Condition - The Keystone Watches

Patek Philippe Nautilus Moonphase Watch Ref. 5726 in Double Sealed and Unworn Condition

Patek Philippe Nautilus Moonphase Watch Ref. 5726 in Double Sealed and Unworn Condition

Sold Out

 
Patek Philippe - Patek Philippe Platinum Chronograph 175th Anniversary Watch Ref. 5975 in Double Sealed Condition - The Keystone Watches

Patek Philippe Platinum Chronograph 175th Anniversary Watch Ref. 5975 in Double Sealed Condition

Patek Philippe Platinum Chronograph 175th Anniversary Watch Ref. 5975 in Double Sealed Condition

Sold Out

New Arrivals Preview
 
Rolex - Rolex Steel Blue Oysterdate Ref. 6694 in New Old Stock Condition (New Arrival) - The Keystone Watches

Rolex Steel Blue Oysterdate Ref. 6694 in New Old Stock Condition (New Arrival)

Rolex Steel Blue Oysterdate Ref. 6694 in New Old Stock Condition (New Arrival)

$4,500 USD
 
Breguet - Breguet Yellow Gold Classique Ref. 3210 (NEW ARRIVAL) - The Keystone Watches

Breguet Yellow Gold Classique Ref. 3210 (NEW ARRIVAL)

Breguet Yellow Gold Classique Ref. 3210 (NEW ARRIVAL)

$7,200 USD
 
Audemars Piguet - Audemars Piguet White Gold Round Watch with Beaded Bracelet and Pave Diamond and Sapphire Dial (New Arrival) - The Keystone Watches

Audemars Piguet White Gold Round Watch with Beaded Bracelet and Pave Diamond and Sapphire Dial (New Arrival)

Audemars Piguet White Gold Round Watch with Beaded Bracelet and Pave Diamond and Sapphire Dial (New Arrival)

$9,800 USD
 
Louis Vuitton - Louis Vuitton Green Ceramic Monterey II (New Arrival) - The Keystone Watches

Louis Vuitton Green Ceramic Monterey II (New Arrival)

Louis Vuitton Green Ceramic Monterey II (New Arrival)

$8,800 USD
 

Piaget White Gold Altiplano Ref. 90122 with Diamonds and Sapphires (New Arrival)

Piaget White Gold Altiplano Ref. 90122 with Diamonds and Sapphires (New Arrival)

$17,750 USD
 

Bulgari Yellow Gold Coin Necklace (New Arrival)

Bulgari Yellow Gold Coin Necklace (New Arrival)

$24,500 USD
Shop all New Arrivals Preview

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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.

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