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Audemars Piguet - Audemars Piguet Platinum Jump Hour Minute Repeater Watch Ref. 25723 - The Keystone Watches

Audemars Piguet Platinum Jump Hour Minute Repeater Watch Ref. 25723

Audemars Piguet Platinum Jump Hour Minute Repeater Watch Ref. 25723

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A. Lange & Sohne - A. Lange & Sohne Platinum Langematik Perpetual Watch Ref. 310.225 - The Keystone Watches

A. Lange & Sohne Platinum Langematik Perpetual Watch Ref. 310.225

A. Lange & Sohne Platinum Langematik Perpetual Watch Ref. 310.225

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

Patek Philippe Platinum Perpetual Diamond Chrono Watch Ref. 5271

Patek Philippe Platinum Perpetual Diamond Chrono Watch Ref. 5271

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A. Lange & Sohne - A. Lange & Sohne White Gold Zeitwerk Striking Time Watch Ref. 145.029 - The Keystone Watches

A. Lange & Sohne White Gold Zeitwerk Striking Time Watch Ref. 145.029

A. Lange & Sohne White Gold Zeitwerk Striking Time Watch Ref. 145.029

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A. Lange & Sohne - A. Lange & Sohne Platinum Datograph Watch Ref. 403.035 - The Keystone Watches

A. Lange & Sohne Platinum Datograph Watch Ref. 403.035

A. Lange & Sohne Platinum Datograph Watch Ref. 403.035

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A. Lange & Sohne - A. Lange & Sohne Platinum Grande Lange 1 Lumen Watch Ref. 117.035 - The Keystone Watches

A. Lange & Sohne Platinum Grande Lange 1 Lumen Watch Ref. 117.035

A. Lange & Sohne Platinum Grande Lange 1 Lumen Watch Ref. 117.035

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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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Breguet - Breguet Platinum Type XX Watch Ref. 3820 - The Keystone Watches

Breguet Platinum Type XX Watch Ref. 3820

Breguet Platinum Type XX Watch Ref. 3820

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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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FP Journe - F.P. Journe Platinum Octa Quantieme Perpetual Watch - The Keystone Watches

F.P. Journe Platinum Octa Quantieme Perpetual Watch

F.P. Journe Platinum Octa Quantieme Perpetual Watch

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Audemars Piguet - Audemars Piguet Platinum Royal Oak Offshore Tourbillon Watch Ref. 26388 - The Keystone Watches

Audemars Piguet Platinum Royal Oak Offshore Tourbillon Watch Ref. 26388

Audemars Piguet Platinum Royal Oak Offshore Tourbillon Watch Ref. 26388

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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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IWC - IWW Platinum Automatic Strap Watch - The Keystone Watches

IWW Platinum Automatic Strap Watch

IWW Platinum Automatic Strap Watch

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Vacheron Constantin - Vacheron Constantin Platinum Malte Tourbillon Regulator Watch Ref. 30080 - The Keystone Watches

Vacheron Constantin Platinum Malte Tourbillon Regulator Watch Ref. 30080

Vacheron Constantin Platinum Malte Tourbillon Regulator Watch Ref. 30080

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

Patek Philippe Platinum Anniversary Nautilus Baguette Diamond Watch Ref. 5711

Patek Philippe Platinum Anniversary Nautilus Baguette Diamond Watch Ref. 5711

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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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Vacheron Constantin - Vacheron Constantin Platinum Perpetual Calendar Chrono Watch Ref. 49005 - The Keystone Watches

Vacheron Constantin Platinum Perpetual Calendar Chrono Watch Ref. 49005

Vacheron Constantin Platinum Perpetual Calendar Chrono Watch Ref. 49005

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Patek Philippe - Patek Philippe Platinum Annual Calender Chronograph Watch Ref. 5905 - The Keystone Watches

Patek Philippe Platinum Annual Calender Chronograph Watch Ref. 5905

Patek Philippe Platinum Annual Calender Chronograph Watch Ref. 5905

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Girard Perregaux - Girard Perregaux Platinum Triple Bridge Skeleton Diamond Tourbillon - The Keystone Watches

Girard Perregaux Platinum Triple Bridge Skeleton Diamond Tourbillon

Girard Perregaux Platinum Triple Bridge Skeleton Diamond Tourbillon

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FP Journe - F.P. Journe Platinum Chronometre Souverain Watch - The Keystone Watches

F.P. Journe Platinum Chronometre Souverain Watch

F.P. Journe Platinum Chronometre Souverain Watch

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Jaeger LeCoultre - Jaeger Lecoultre Platinum Master Grand Tourbillon Watch - The Keystone Watches

Jaeger Lecoultre Platinum Master Grand Tourbillon Watch

Jaeger Lecoultre Platinum Master Grand Tourbillon Watch

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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 Annual Calendar Chrono Watch Ref. 5960 - The Keystone Watches

Patek Philippe Platinum Annual Calendar Chrono Watch Ref. 5960

Patek Philippe Platinum Annual Calendar Chrono Watch Ref. 5960

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Jaeger LeCoultre - Jaeger Lecoultre Platinum Tourbillon Triptyque Ref 241.6.65 - The Keystone Watches

Jaeger Lecoultre Platinum Tourbillon Triptyque Ref 241.6.65

Jaeger Lecoultre Platinum Tourbillon Triptyque Ref 241.6.65

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

Patek Philippe Platinum Chronograph Watch Ref. 5070

Patek Philippe Platinum Chronograph Watch Ref. 5070

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Patek Philippe - Patek Philippe Platinum Rare Handcrafts Enamel Watch Ref. 5088 - The Keystone Watches

Patek Philippe Platinum Rare Handcrafts Enamel Watch Ref. 5088

Patek Philippe Platinum Rare Handcrafts Enamel Watch Ref. 5088

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Patek Philippe - Patek Philippe Platinum Cloisonne Dial Watch Ref. 5077 - The Keystone Watches

Patek Philippe Platinum Cloisonne Dial Watch Ref. 5077

Patek Philippe Platinum Cloisonne Dial Watch Ref. 5077

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FP Journe - F.P. Journe Platinum Chronometre Souverain Watch - The Keystone Watches

F.P. Journe Platinum Chronometre Souverain Watch

F.P. Journe Platinum Chronometre Souverain Watch

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

Patek Philippe Platinum Perpetual Diamond Chrono Watch Ref. 5271

Patek Philippe Platinum Perpetual Diamond Chrono Watch Ref. 5271

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FP Journe - F.P. Journe Platinum Octa Reserve de Marche Early Production - The Keystone Watches

F.P. Journe Platinum Octa Reserve de Marche Early Production

F.P. Journe Platinum Octa Reserve de Marche Early Production

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Patek Philippe - Unworn Patek Philippe Platinum Chronograph Ref. 5070 in Original Plastic Seal - The Keystone Watches

Unworn Patek Philippe Platinum Chronograph Ref. 5070 in Original Plastic Seal

Unworn Patek Philippe Platinum Chronograph Ref. 5070 in Original Plastic Seal

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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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A. Lange & Sohne - A. Lange & Sohne Platinum 1815 Tourbillon Watch Ref. 730.025 - The Keystone Watches

A. Lange & Sohne Platinum 1815 Tourbillon Watch Ref. 730.025

A. Lange & Sohne Platinum 1815 Tourbillon Watch Ref. 730.025

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Cartier - Cartier Platinum Crash Diamond Watch - The Keystone Watches

Cartier Platinum Crash Diamond Watch

Cartier Platinum Crash Diamond Watch

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Patek Philippe - Patek Philippe Platinum Gondolo Tiffany & Co. Ref. 5135 - The Keystone Watches

Patek Philippe Platinum Gondolo Tiffany & Co. Ref. 5135

Patek Philippe Platinum Gondolo Tiffany & Co. Ref. 5135

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

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New Arrivals Preview
 
Patek Philippe - Patek Philippe Yellow Gold Calatrava Ref. 2482 (New Arrival) - The Keystone Watches

Patek Philippe Yellow Gold Calatrava Ref. 2482 (New Arrival)

Patek Philippe Yellow Gold Calatrava Ref. 2482 (New Arrival)

$11,500 USD
 
Breguet Yellow Gold Classique Ref. 3210 (NEW ARRIVAL)

Breguet Yellow Gold Classique Ref. 3210 (NEW ARRIVAL)

Breguet Yellow Gold Classique Ref. 3210 (NEW ARRIVAL)

$7,200 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
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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