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Patek Philippe - Patek Philippe Platinum Minute Repeating Tourbillon Watch Ref. 3939 - The Keystone Watches

Patek Philippe Platinum Minute Repeating Tourbillon Watch Ref. 3939

Patek Philippe Platinum Minute Repeating Tourbillon Watch Ref. 3939

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Patek Philippe - Patek Philippe Platinum Minute Repeating Tourbillon Watch Ref. 3939 - The Keystone Watches

Patek Philippe Platinum Minute Repeating Tourbillon Watch Ref. 3939

Patek Philippe Platinum Minute Repeating Tourbillon Watch Ref. 3939

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Patek Philippe - Patek Philippe Platinum Minute Repeating Tourbillon Watch Ref. 5016 - The Keystone Watches

Patek Philippe Platinum Minute Repeating Tourbillon Watch Ref. 5016

Patek Philippe Platinum Minute Repeating Tourbillon Watch Ref. 5016

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Patek Philippe - Patek Philippe Platinum Minute Repeating Tourbillon Watch Ref. 5016 - The Keystone Watches

Patek Philippe Platinum Minute Repeating Tourbillon Watch Ref. 5016

Patek Philippe Platinum Minute Repeating Tourbillon Watch Ref. 5016

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Patek Philippe - Patek Philippe Platinum Minute Repeating Tourbillon Watch Ref. 5016 - The Keystone Watches

Patek Philippe Platinum Minute Repeating Tourbillon Watch Ref. 5016

Patek Philippe Platinum Minute Repeating Tourbillon Watch Ref. 5016

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Patek Philippe - Patek Philippe Platinum Monopusher Split Seconds Chrono Ref. 5959 - The Keystone Watches

Patek Philippe Platinum Monopusher Split Seconds Chrono Ref. 5959

Patek Philippe Platinum Monopusher Split Seconds Chrono Ref. 5959

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Patek Philippe - Patek Philippe Platinum Monopusher Split Seconds Chrono Ref. 5959 - The Keystone Watches

Patek Philippe Platinum Monopusher Split Seconds Chrono Ref. 5959

Patek Philippe Platinum Monopusher Split Seconds Chrono Ref. 5959

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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 Nautilus Watch Ref. 3800 - The Keystone Watches

Patek Philippe Platinum Nautilus Watch Ref. 3800

Patek Philippe Platinum Nautilus Watch Ref. 3800

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Patek Philippe - Patek Philippe Platinum Nautilus Watch Ref. 3800 with Original Warranty - The Keystone Watches

Patek Philippe Platinum Nautilus Watch Ref. 3800 with Original Warranty

Patek Philippe Platinum Nautilus Watch Ref. 3800 with Original Warranty

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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 Platinum Nautilus with Baguette Ruby Bezel Ref. 5711 - The Keystone Watches

Patek Philippe Platinum Nautilus with Baguette Ruby Bezel Ref. 5711

Patek Philippe Platinum Nautilus with Baguette Ruby Bezel Ref. 5711

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Patek Philippe - Patek Philippe Platinum Perpetual Baguette Diamond Watch Ref. 5271 - The Keystone Watches

Patek Philippe Platinum Perpetual Baguette Diamond Watch Ref. 5271

Patek Philippe Platinum Perpetual Baguette Diamond Watch Ref. 5271

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Advanced Research Watch Ref. 5550 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Advanced Research Watch Ref. 5550

Patek Philippe Platinum Perpetual Calendar Advanced Research Watch Ref. 5550

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Advanced Research Watch Ref. 5550 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Advanced Research Watch Ref. 5550

Patek Philippe Platinum Perpetual Calendar Advanced Research Watch Ref. 5550

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Chrono Baguette Diamond Watch Ref. 5271 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Chrono Baguette Diamond Watch Ref. 5271

Patek Philippe Platinum Perpetual Calendar Chrono Baguette Diamond Watch Ref. 5271

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Chrono Baguette Diamond Watch Ref. 5971 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Chrono Baguette Diamond Watch Ref. 5971

Patek Philippe Platinum Perpetual Calendar Chrono Baguette Diamond Watch Ref. 5971

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Chrono Baguette Diamond Watch Ref. 5971 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Chrono Baguette Diamond Watch Ref. 5971

Patek Philippe Platinum Perpetual Calendar Chrono Baguette Diamond Watch Ref. 5971

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

Patek Philippe Platinum Perpetual Calendar Chrono Ruby Watch Ref. 5271

Patek Philippe Platinum Perpetual Calendar Chrono Ruby Watch Ref. 5271

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Chrono Sapphire Watch Ref. 5271 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Chrono Sapphire Watch Ref. 5271

Patek Philippe Platinum Perpetual Calendar Chrono Sapphire Watch Ref. 5271

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Chrono Sapphire Watch Ref. 5271 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Chrono Sapphire Watch Ref. 5271

Patek Philippe Platinum Perpetual Calendar Chrono Sapphire Watch Ref. 5271

Sold Out

 
Patek Philippe - Patek Philippe Platinum Perpetual Calendar Chrono Sapphire Watch Ref. 5271 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Chrono Sapphire Watch Ref. 5271

Patek Philippe Platinum Perpetual Calendar Chrono Sapphire Watch Ref. 5271

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Chrono Watch Ref. 3970 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Chrono Watch Ref. 3970

Patek Philippe Platinum Perpetual Calendar Chrono Watch Ref. 3970

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Chrono Watch Ref. 3970 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Chrono Watch Ref. 3970

Patek Philippe Platinum Perpetual Calendar Chrono Watch Ref. 3970

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Chrono Watch Ref. 5270 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Chrono Watch Ref. 5270

Patek Philippe Platinum Perpetual Calendar Chrono Watch Ref. 5270

Sold Out

 
Patek Philippe - Patek Philippe Platinum Perpetual Calendar Chrono Watch Ref. 5970 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Chrono Watch Ref. 5970

Patek Philippe Platinum Perpetual Calendar Chrono Watch Ref. 5970

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Chrono Watch Ref. 5970P - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Chrono Watch Ref. 5970P

Patek Philippe Platinum Perpetual Calendar Chrono Watch Ref. 5970P

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

Patek Philippe Platinum Perpetual Calendar Chronograph Diamond Watch Ref. 5271

Patek Philippe Platinum Perpetual Calendar Chronograph Diamond Watch Ref. 5271

Sold Out

 
Patek Philippe - Patek Philippe Platinum Perpetual Calendar Chronograph Ref. 5970 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Chronograph Ref. 5970

Patek Philippe Platinum Perpetual Calendar Chronograph Ref. 5970

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Patek Philippe Platinum Perpetual Calendar Chronograph Ref. 5970

Patek Philippe Platinum Perpetual Calendar Chronograph Ref. 5970

$265,000 USD
 
Patek Philippe - Patek Philippe Platinum Perpetual Calendar Chronograph Watch Ref. 3970 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Chronograph Watch Ref. 3970

Patek Philippe Platinum Perpetual Calendar Chronograph Watch Ref. 3970

Sold Out

 
Patek Philippe - Patek Philippe Platinum Perpetual Calendar Chronograph Watch Ref. 3970 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Chronograph Watch Ref. 3970

Patek Philippe Platinum Perpetual Calendar Chronograph Watch Ref. 3970

Sold Out

 
Patek Philippe - Patek Philippe Platinum Perpetual Calendar Chronograph Watch Ref. 5270 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Chronograph Watch Ref. 5270

Patek Philippe Platinum Perpetual Calendar Chronograph Watch Ref. 5270

Sold Out

 
Patek Philippe - Patek Philippe Platinum Perpetual Calendar Chronograph Watch Ref. 5270 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Chronograph Watch Ref. 5270

Patek Philippe Platinum Perpetual Calendar Chronograph Watch Ref. 5270

Sold Out

 
Patek Philippe - Patek Philippe Platinum Perpetual Calendar Chronograph Watch Ref. 5970 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Chronograph Watch Ref. 5970

Patek Philippe Platinum Perpetual Calendar Chronograph Watch Ref. 5970

Sold Out

 
Patek Philippe - Patek Philippe Platinum Perpetual Calendar Chronograph Watch Ref. 5970 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Chronograph Watch Ref. 5970

Patek Philippe Platinum Perpetual Calendar Chronograph Watch Ref. 5970

Sold Out

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New Arrivals Preview
 
Piaget - Piaget White Gold Mechanical Bracelet Watch Ref. P10178 (New Arrival) - The Keystone Watches

Piaget White Gold Mechanical Bracelet Watch Ref. P10178 (New Arrival)

Piaget White Gold Mechanical Bracelet Watch Ref. P10178 (New Arrival)

$10,750 USD
 
Piaget - Piaget White Gold Watch Ref. 80131 (New Arrival) - The Keystone Watches

Piaget White Gold Watch Ref. 80131 (New Arrival)

Piaget White Gold Watch Ref. 80131 (New Arrival)

$9,500 USD
 
Omega - Omega Yellow Gold Automatic Watch Retailed by Turler (New Arrival) - The Keystone Watches

Omega Yellow Gold Automatic Watch Retailed by Turler (New Arrival)

Omega Yellow Gold Automatic Watch Retailed by Turler (New Arrival)

$4,950 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
 
Omega - Omega Yellow Gold Vintage Pocket Watch 1182.61 (New Arrival) - The Keystone Watches

Omega Yellow Gold Vintage Pocket Watch 1182.61 (New Arrival)

Omega Yellow Gold Vintage Pocket Watch 1182.61 (New Arrival)

$6,500 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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