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A. Lange & Sohne - A. Lange & Sohne White Gold Langematik Sax-O-Mat Ref. 301.027 - The Keystone Watches

A. Lange & Sohne White Gold Langematik Sax-O-Mat Ref. 301.027

A. Lange & Sohne White Gold Langematik Sax-O-Mat Ref. 301.027

Sold Out

 
Patek Philippe - Patek Philippe White Gold Perpetual Engraved Ref. 5160 - The Keystone Watches

Patek Philippe White Gold Perpetual Engraved Ref. 5160

Patek Philippe White Gold Perpetual Engraved Ref. 5160

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Piaget - Piaget White Gold Lapis Diamond Watch Ref. 9806 - The Keystone Watches

Piaget White Gold Lapis Diamond Watch Ref. 9806

Piaget White Gold Lapis Diamond Watch Ref. 9806

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Piaget - Piaget White Gold Rubelite Diamond Watch Ref. 9804 - The Keystone Watches

Piaget White Gold Rubelite Diamond Watch Ref. 9804

Piaget White Gold Rubelite Diamond Watch Ref. 9804

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Vacheron Constantin - Vacheron Constantin White Gold Royal Chronometer Automatic Watch Ref. 6694 - The Keystone Watches

Vacheron Constantin White Gold Royal Chronometer Automatic Watch Ref. 6694

Vacheron Constantin White Gold Royal Chronometer Automatic Watch Ref. 6694

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Rolex - Rolex Platinum Day-Date Baguette Diamond Watch Ref. 18366 with Bucherer Warranty - The Keystone Watches

Rolex Platinum Day-Date Baguette Diamond Watch Ref. 18366 with Bucherer Warranty

Rolex Platinum Day-Date Baguette Diamond Watch Ref. 18366 with Bucherer Warranty

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Rolex - Rolex Steel Submariner Ref. 168000 with Spider Dial - The Keystone Watches

Rolex Steel Submariner Ref. 168000 with Spider Dial

Rolex Steel Submariner Ref. 168000 with Spider Dial

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Patek Philippe - Patek Philippe White Gold Automatic Backwind Golden Circle Watch Ref. 3586 - The Keystone Watches

Patek Philippe White Gold Automatic Backwind Golden Circle Watch Ref. 3586

Patek Philippe White Gold Automatic Backwind Golden Circle Watch Ref. 3586

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Rolex - Rolex Yellow Gold Day-Date Ref. 1803 - The Keystone Watches

Rolex Yellow Gold Day-Date Ref. 1803

Rolex Yellow Gold Day-Date Ref. 1803

Sold Out

 
Cartier - Cartier Yellow Gold Tank Cintree Watch Ref. 4123 - The Keystone Watches

Cartier Yellow Gold Tank Cintree Watch Ref. 4123

Cartier Yellow Gold Tank Cintree Watch Ref. 4123

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Minute Repeater Watch Ref. 5374 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Minute Repeater Watch Ref. 5374

Patek Philippe Platinum Perpetual Calendar Minute Repeater Watch Ref. 5374

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Rolex - Rolex Steel Zenith Daytona Chronograph Ref. 16520 with Original Warranty - The Keystone Watches

Rolex Steel Zenith Daytona Chronograph Ref. 16520 with Original Warranty

Rolex Steel Zenith Daytona Chronograph Ref. 16520 with Original Warranty

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Rolex - Rolex Steel Zenith Daytona Chronograph Ref. 16520 with Original Warranty - The Keystone Watches

Rolex Steel Zenith Daytona Chronograph Ref. 16520 with Original Warranty

Rolex Steel Zenith Daytona Chronograph Ref. 16520 with Original Warranty

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Audemars Piguet - Audemars Piguet Yellow Gold Royal Oak Ref. 15450 - The Keystone Watches

Audemars Piguet Yellow Gold Royal Oak Ref. 15450

Audemars Piguet Yellow Gold Royal Oak Ref. 15450

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Cartier - Cartier Yellow Gold Tank Cintree Watch - The Keystone Watches

Cartier Yellow Gold Tank Cintree Watch

Cartier Yellow Gold Tank Cintree Watch

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Patek Philippe - Patek Philippe Yellow Gold World Time Watch Ref. 5110 - The Keystone Watches

Patek Philippe Yellow Gold World Time Watch Ref. 5110

Patek Philippe Yellow Gold World Time Watch Ref. 5110

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Tourbillon Watch Ref. 5016 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Tourbillon Watch Ref. 5016

Patek Philippe Platinum Perpetual Calendar Tourbillon Watch Ref. 5016

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Audemars Piguet - Audemars Piguet Yellow Gold Bracelet Watch - The Keystone Watches

Audemars Piguet Yellow Gold Bracelet Watch

Audemars Piguet Yellow Gold Bracelet Watch

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Patek Philippe - Patek Philippe Yellow Gold Calatrava Watch Ref. 5000 - The Keystone Watches

Patek Philippe Yellow Gold Calatrava Watch Ref. 5000

Patek Philippe Yellow Gold Calatrava Watch Ref. 5000

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

Audemars Piguet White Gold and Diamond Watch

Audemars Piguet White Gold and Diamond Watch

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FP Journe - F.P Journe Platinum Ruthenium Edition Tourbillon, Edition of 99 Pieces - The Keystone Watches

F.P Journe Platinum Ruthenium Edition Tourbillon, Edition of 99 Pieces

F.P Journe Platinum Ruthenium Edition Tourbillon, Edition of 99 Pieces

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Audemars Piguet - Audemars Piguet Two-Tone Automatic Bracelet Watch - The Keystone Watches

Audemars Piguet Two-Tone Automatic Bracelet Watch

Audemars Piguet Two-Tone Automatic Bracelet Watch

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Watch Ref. 5140 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Watch Ref. 5140

Patek Philippe Platinum Perpetual Calendar Watch Ref. 5140

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

Patek Philippe Platinum Perpetual Calendar Watch Ref. 5970

Patek Philippe Platinum Perpetual Calendar Watch Ref. 5970

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Audemars Piguet - Audemars Piguet Steel Automatic Watch - The Keystone Watches

Audemars Piguet Steel Automatic Watch

Audemars Piguet Steel Automatic Watch

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De Bethune - De Bethune Titanium Starry Sky Ref. DB28XP - The Keystone Watches

De Bethune Titanium Starry Sky Ref. DB28XP

De Bethune Titanium Starry Sky Ref. DB28XP

$110,000 USD
 
Patek Philippe - Patek Philippe Ellipse White Gold Retailed by Gubelin Ref. 3589 - The Keystone Watches

Patek Philippe Ellipse White Gold Retailed by Gubelin Ref. 3589

Patek Philippe Ellipse White Gold Retailed by Gubelin Ref. 3589

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A. Lange & Sohne - A. Lange & Sohne Platinum Grand Lange 1 Lumen 117.035 - The Keystone Watches

A. Lange & Sohne Platinum Grand Lange 1 Lumen 117.035

A. Lange & Sohne Platinum Grand Lange 1 Lumen 117.035

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Patek Philippe Steel Aquanaut First Series Watch Ref. 5060

Patek Philippe Steel Aquanaut First Series Watch Ref. 5060

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Piaget - Piaget Yellow Gold Lapis Malachite Watch, 1960s - The Keystone Watches

Piaget Yellow Gold Lapis Malachite Watch, 1960s

Piaget Yellow Gold Lapis Malachite Watch, 1960s

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Audemars Piguet - Audemars Piguet Steel Cushion Ref. 5369 (NEW ARRIVAL) - The Keystone Watches

Audemars Piguet Steel Cushion Ref. 5369 (NEW ARRIVAL)

Audemars Piguet Steel Cushion Ref. 5369 (NEW ARRIVAL)

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Rolex - Rolex Steel Maxi Dial Submariner Ref. 5513 with Original Warranty - The Keystone Watches

Rolex Steel Maxi Dial Submariner Ref. 5513 with Original Warranty

Rolex Steel Maxi Dial Submariner Ref. 5513 with Original Warranty

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A. Lange & Sohne White Gold 1815 Annual Calendar Watch Ref. 238.026

A. Lange & Sohne White Gold 1815 Annual Calendar Watch Ref. 238.026

Sold Out

 
Rolex - Rolex Yellow Gold Day-Date with Morelli Finish Ref. 1811 - The Keystone Watches

Rolex Yellow Gold Day-Date with Morelli Finish Ref. 1811

Rolex Yellow Gold Day-Date with Morelli Finish Ref. 1811

Sold Out

 
Audemars Piguet - Audemars Piguet Royal Oak Tourbillon Ref. 26521, Edition of 10 - The Keystone Watches

Audemars Piguet Royal Oak Tourbillon Ref. 26521, Edition of 10

Audemars Piguet Royal Oak Tourbillon Ref. 26521, Edition of 10

Sold Out

 
Patek Philippe - Patek Philippe Steel Calatrava Ref. 3509 - The Keystone Watches

Patek Philippe Steel Calatrava Ref. 3509

Patek Philippe Steel Calatrava Ref. 3509

Sold Out

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New Arrivals Preview
 
A. Lange & Sohne White Gold Lange 1 Ref. 101.039 (New Arrival)

A. Lange & Sohne White Gold Lange 1 Ref. 101.039 (New Arrival)

A. Lange & Sohne White Gold Lange 1 Ref. 101.039 (New Arrival)

$29,000 USD
 

Patek Philippe White Gold Golden Ellipse Watch Ref. 3644 on Chain JPE Band (New Arrival)

Patek Philippe White Gold Golden Ellipse Watch Ref. 3644 on Chain JPE Band (New Arrival)

$11,500 USD
 
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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