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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

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A. Lange & Sohne - A. Lange & Sohne White Gold 1815 Chronograph Watch 402.026 - The Keystone Watches

A. Lange & Sohne White Gold 1815 Chronograph Watch 402.026

A. Lange & Sohne White Gold 1815 Chronograph Watch 402.026

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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

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

Patek Philippe White Gold Perpetual Calendar Chronograph Watch Ref. 5270

Patek Philippe White Gold Perpetual Calendar Chronograph Watch Ref. 5270

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Omega - Omega Steel Speedmaster Chronograph Watch Ref. 105.012 - The Keystone Watches

Omega Steel Speedmaster Chronograph Watch Ref. 105.012

Omega Steel Speedmaster Chronograph Watch Ref. 105.012

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Audemars Piguet - Audemars Piguet Royal Oak Chronograph Blue Watch Ref. 25860ST - The Keystone Watches

Audemars Piguet Royal Oak Chronograph Blue Watch Ref. 25860ST

Audemars Piguet Royal Oak Chronograph Blue Watch Ref. 25860ST

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Patek Philippe - Patek Philippe Steel Monopusher Salmon Dial Chronograph Watch Ref. 5950 - The Keystone Watches

Patek Philippe Steel Monopusher Salmon Dial Chronograph Watch Ref. 5950

Patek Philippe Steel Monopusher Salmon Dial Chronograph Watch Ref. 5950

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Patek Philippe - Patek Philippe Platinum Annual Calendar Chronograph Watch Ref. 5960 - The Keystone Watches

Patek Philippe Platinum Annual Calendar Chronograph Watch Ref. 5960

Patek Philippe Platinum Annual Calendar Chronograph Watch Ref. 5960

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Patek Philippe - Patek Philippe White Gold Chronograph Watch Ref. 5170 - The Keystone Watches

Patek Philippe White Gold Chronograph Watch Ref. 5170

Patek Philippe White Gold Chronograph Watch Ref. 5170

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Audemars Piguet - Audemars Piguet Royal Oak Chronograph Watch, Ref. 26320ST - The Keystone Watches

Audemars Piguet Royal Oak Chronograph Watch, Ref. 26320ST

Audemars Piguet Royal Oak Chronograph Watch, Ref. 26320ST

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Patek Philippe - Patek Philippe Platinum Perpetual Split Seconds Chronograph Watch Ref. 5004 - The Keystone Watches

Patek Philippe Platinum Perpetual Split Seconds Chronograph Watch Ref. 5004

Patek Philippe Platinum Perpetual Split Seconds Chronograph Watch Ref. 5004

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Omega - Omega Yellow Gold Speedmaster Chronograph Watch - The Keystone Watches

Omega Yellow Gold Speedmaster Chronograph Watch

Omega Yellow Gold Speedmaster Chronograph Watch

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Patek Philippe - Patek Philippe Rose Gold Chronograph Watch Ref. 5070 - The Keystone Watches

Patek Philippe Rose Gold Chronograph Watch Ref. 5070

Patek Philippe Rose Gold Chronograph Watch Ref. 5070

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Audemars Piguet - Audemars Piguet Rose Gold Royal Oak Chronograph Watch - The Keystone Watches

Audemars Piguet Rose Gold Royal Oak Chronograph Watch

Audemars Piguet Rose Gold Royal Oak Chronograph Watch

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A. Lange & Sohne - A Lange & Sohne White Gold 1815 Chronograph Watch - The Keystone Watches

A Lange & Sohne White Gold 1815 Chronograph Watch

A Lange & Sohne White Gold 1815 Chronograph Watch

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Patek Philippe - Patek Philippe Platinum Chronograph Watch Ref. 5070, Retailed by Tiffany & Co. - The Keystone Watches

Patek Philippe Platinum Chronograph Watch Ref. 5070, Retailed by Tiffany & Co.

Patek Philippe Platinum Chronograph Watch Ref. 5070, Retailed by Tiffany & Co.

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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

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Patek Philippe - Patek Philippe Yellow Gold Chronograph Watch Ref. 5070 - The Keystone Watches

Patek Philippe Yellow Gold Chronograph Watch Ref. 5070

Patek Philippe Yellow Gold Chronograph Watch Ref. 5070

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

Patek Philippe Rose Gold Perpetual Calendar Chronograph Watch Ref. 5970

Patek Philippe Rose Gold Perpetual Calendar Chronograph Watch Ref. 5970

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

Patek Philippe White Gold Perpetual Calendar Chronograph Watch Ref. 5970

Patek Philippe White Gold Perpetual Calendar Chronograph Watch Ref. 5970

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Patek Philippe - Patek Philippe Platinum Split-Seconds Chronograph Watch Ref. 5370 - The Keystone Watches

Patek Philippe Platinum Split-Seconds Chronograph Watch Ref. 5370

Patek Philippe Platinum Split-Seconds Chronograph Watch Ref. 5370

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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 Yellow Gold Perpetual Calendar Chronograph Watch Ref. 3970 - The Keystone Watches

Patek Philippe Yellow Gold Perpetual Calendar Chronograph Watch Ref. 3970

Patek Philippe Yellow Gold Perpetual Calendar Chronograph Watch Ref. 3970

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Patek Philippe - Patek Philippe White Gold Annual Calendar Chronograph Watch Ref. 5960 - The Keystone Watches

Patek Philippe White Gold Annual Calendar Chronograph Watch Ref. 5960

Patek Philippe White Gold Annual Calendar Chronograph Watch Ref. 5960

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Patek Philippe - Patek Philippe Rose Gold Perpetual Chronograph Split Seconds Watch Ref. 5204 - The Keystone Watches

Patek Philippe Rose Gold Perpetual Chronograph Split Seconds Watch Ref. 5204

Patek Philippe Rose Gold Perpetual Chronograph Split Seconds Watch Ref. 5204

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Audemars Piguet - Audemars Piguet Royal Oak Chronograph Vampire Watch - The Keystone Watches

Audemars Piguet Royal Oak Chronograph Vampire Watch

Audemars Piguet Royal Oak Chronograph Vampire Watch

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Piaget - Piaget Yellow Gold Skeletonized Lapis Lazuli Chronograph Watch - The Keystone Watches

Piaget Yellow Gold Skeletonized Lapis Lazuli Chronograph Watch

Piaget Yellow Gold Skeletonized Lapis Lazuli Chronograph Watch

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Patek Philippe - Patek Philippe Rose Gold Chronograph Watch Ref. 5960 - The Keystone Watches

Patek Philippe Rose Gold Chronograph Watch Ref. 5960

Patek Philippe Rose Gold Chronograph Watch Ref. 5960

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Patek Philippe - Patek Philippe White Gold Chronograph Watch Ref. 5170 - The Keystone Watches

Patek Philippe White Gold Chronograph Watch Ref. 5170

Patek Philippe White Gold Chronograph Watch Ref. 5170

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

Patek Philippe Rose Gold Perpetual Calendar Chronograph Watch Ref. 5970

Patek Philippe Rose Gold Perpetual Calendar Chronograph Watch Ref. 5970

Sold Out

 
IWC - IWC Aquatimer Chronograph Watch Ref. IW376802 - The Keystone Watches

IWC Aquatimer Chronograph Watch Ref. IW376802

IWC Aquatimer Chronograph Watch Ref. IW376802

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Patek Philippe - Patek Philippe Platinum Chronograph Diamond Watch Ref. 5170 - The Keystone Watches

Patek Philippe Platinum Chronograph Diamond Watch Ref. 5170

Patek Philippe Platinum Chronograph Diamond Watch Ref. 5170

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A. Lange & Sohne - A Lange & Sohne 1815 Chronograph White Gold - The Keystone Watches

A Lange & Sohne 1815 Chronograph White Gold

A Lange & Sohne 1815 Chronograph White Gold

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Audemars Piguet - Audemars Piguet Royal Oak Chronograph Watch Ref. 25860 - The Keystone Watches

Audemars Piguet Royal Oak Chronograph Watch Ref. 25860

Audemars Piguet Royal Oak Chronograph Watch Ref. 25860

Sold Out

 
Patek Philippe - Patek Philippe Platinum Annual Calendar Chronograph Watch Ref. 5960 - The Keystone Watches

Patek Philippe Platinum Annual Calendar Chronograph Watch Ref. 5960

Patek Philippe Platinum Annual Calendar Chronograph Watch Ref. 5960

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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

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New Arrivals Preview
 
Gerald Genta Fantasy Retro M.10 MOP Mickey Mouse for Hong Kong Disney Watch (New Arrival)

Gerald Genta Fantasy Retro M.10 MOP Mickey Mouse for Hong Kong Disney Watch (New Arrival)

Gerald Genta Fantasy Retro M.10 MOP Mickey Mouse for Hong Kong Disney Watch (New Arrival)

$23,750 USD
 
Vacheron Constantin - Vacheron Constantin Yellow Gold Grand Complication Pocket Watch (NEW ARRIVAL) - The Keystone Watches

Vacheron Constantin Yellow Gold Grand Complication Pocket Watch (NEW ARRIVAL)

Vacheron Constantin Yellow Gold Grand Complication Pocket Watch (NEW ARRIVAL)

$155,000 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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