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Patek Philippe - Patek Philippe Yellow Gold Split Seconds Perpetual Watch Ref. 5004 - The Keystone Watches

Patek Philippe Yellow Gold Split Seconds Perpetual Watch Ref. 5004

Patek Philippe Yellow Gold Split Seconds Perpetual Watch Ref. 5004

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Split Seconds Chrono Ref. 5004 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Split Seconds Chrono Ref. 5004

Patek Philippe Platinum Perpetual Calendar Split Seconds Chrono Ref. 5004

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Audemars Piguet - Audemars Piguet White Gold Cobra Automatic Watch - The Keystone Watches

Audemars Piguet White Gold Cobra Automatic Watch

Audemars Piguet White Gold Cobra Automatic Watch

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Patek Philippe - Patek Philippe White Gold Calatrava Ref. 3445 on White Gold Bracelet - The Keystone Watches

Patek Philippe White Gold Calatrava Ref. 3445 on White Gold Bracelet

Patek Philippe White Gold Calatrava Ref. 3445 on White Gold Bracelet

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Rolex - Rolex Submariner Ref. 5513 with Original Paper and Hang Tag - The Keystone Watches

Rolex Submariner Ref. 5513 with Original Paper and Hang Tag

Rolex Submariner Ref. 5513 with Original Paper and Hang Tag

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Patek Philippe - Patek Philippe Yellow Gold Nautilus Jumbo Watch Ref. 3700 - The Keystone Watches

Patek Philippe Yellow Gold Nautilus Jumbo Watch Ref. 3700

Patek Philippe Yellow Gold Nautilus Jumbo Watch Ref. 3700

Sold Out

 
Patek Philippe - Patek Philippe Nautilus Annual Calendar Watch Ref. 5726 - The Keystone Watches

Patek Philippe Nautilus Annual Calendar Watch Ref. 5726

Patek Philippe Nautilus Annual Calendar Watch Ref. 5726

Sold Out

 
Rolex - Rolex Yellow Gold Day-Date Ref. 1803 with Buckley Dial and Original Warranty - The Keystone Watches

Rolex Yellow Gold Day-Date Ref. 1803 with Buckley Dial and Original Warranty

Rolex Yellow Gold Day-Date Ref. 1803 with Buckley Dial and Original Warranty

Sold Out

 
Audemars Piguet - Audemars Piguet Stainless Steel Watch Ref. 5222 - The Keystone Watches

Audemars Piguet Stainless Steel Watch Ref. 5222

Audemars Piguet Stainless Steel Watch Ref. 5222

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A. Lange & Sohne - A. Lange & Sohne Platinum Darth Lange 1 Ref. 101.035 - The Keystone Watches

A. Lange & Sohne Platinum Darth Lange 1 Ref. 101.035

A. Lange & Sohne Platinum Darth Lange 1 Ref. 101.035

Sold Out

 
Rolex - Rolex Yellow Gold Zenith Daytona Ref. 16528 with Original Warranty - The Keystone Watches

Rolex Yellow Gold Zenith Daytona Ref. 16528 with Original Warranty

Rolex Yellow Gold Zenith Daytona Ref. 16528 with Original Warranty

Sold Out

 
IWC - IWC Yellow Gold Da Vinci Ref. 9212 for the Sultan of Oman - The Keystone Watches

IWC Yellow Gold Da Vinci Ref. 9212 for the Sultan of Oman

IWC Yellow Gold Da Vinci Ref. 9212 for the Sultan of Oman

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Audemars Piguet - Audemars Piguet White Gold Baguette Skeleton Watch with Singapore mastcot, the Merlion. Piece Unique - The Keystone Watches

Audemars Piguet White Gold Baguette Skeleton Watch with Singapore mastcot, the Merlion. Piece Unique

Audemars Piguet White Gold Baguette Skeleton Watch with Singapore mastcot, the Merlion. Piece Unique

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Rolex - Rolex Platinum and Diamond Day-Date Ref. 118346 - The Keystone Watches

Rolex Platinum and Diamond Day-Date Ref. 118346

Rolex Platinum and Diamond Day-Date Ref. 118346

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Patek Philippe - Patek Philippe White Golden Circle Ellipse Ref. 3586 - The Keystone Watches

Patek Philippe White Golden Circle Ellipse Ref. 3586

Patek Philippe White Golden Circle Ellipse Ref. 3586

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Patek Philippe - Patek Philippe Yellow Gold Onyx Dial Ref. 3733 - The Keystone Watches

Patek Philippe Yellow Gold Onyx Dial Ref. 3733

Patek Philippe Yellow Gold Onyx Dial Ref. 3733

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Patek Philippe - Patek Philippe Steel Midsize Nautilus Watch Ref. 3900 - The Keystone Watches

Patek Philippe Steel Midsize Nautilus Watch Ref. 3900

Patek Philippe Steel Midsize Nautilus Watch Ref. 3900

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Audemars Piguet - Audemars Piguet Steel Royal Oak - The Keystone Watches

Audemars Piguet Steel Royal Oak

Audemars Piguet Steel Royal Oak

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Vacheron Constantin - Vacheron Constantin White Gold Saltarello Ref. 163550 - The Keystone Watches

Vacheron Constantin White Gold Saltarello Ref. 163550

Vacheron Constantin White Gold Saltarello Ref. 163550

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Audemars Piguet - Audemars Piguet Yellow Gold Royal Oak Ref. 4100 - The Keystone Watches

Audemars Piguet Yellow Gold Royal Oak Ref. 4100

Audemars Piguet Yellow Gold Royal Oak Ref. 4100

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Patek Philippe - Patek Philippe White Gold Perpetual Calendar Watch Ref. 5136 - The Keystone Watches

Patek Philippe White Gold Perpetual Calendar Watch Ref. 5136

Patek Philippe White Gold Perpetual Calendar Watch Ref. 5136

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Audemars Piguet - Audemars Piguet Steel Royal Oak Ref. 56303 - The Keystone Watches

Audemars Piguet Steel Royal Oak Ref. 56303

Audemars Piguet Steel Royal Oak Ref. 56303

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New Arrivals Preview
 
Patek Philippe Yellow Gold Rectangular Watch, Retailed by Tiffany & Co. Ref. 431, Circa 1926 (New Arrival)

Patek Philippe Yellow Gold Rectangular Watch, Retailed by Tiffany & Co. Ref. 431, Circa 1926 (New Arrival)

Patek Philippe Yellow Gold Rectangular Watch, Retailed by Tiffany & Co. Ref. 431, Circa 1926 (New Arrival)

$55,000 USD
 
Patek Philippe Platinum Perpetual Calendar Black Dial Watch Ref. 3970 (New Arrival)

Patek Philippe Platinum Perpetual Calendar Black Dial Watch Ref. 3970 (New Arrival)

Patek Philippe Platinum Perpetual Calendar Black Dial Watch Ref. 3970 (New Arrival)

$295,000 USD
 
Breguet Yellow Gold Classique Heures Sautantes Jump Hour Ref. 3420 (New Arrival)

Breguet Yellow Gold Classique Heures Sautantes Jump Hour Ref. 3420 (New Arrival)

Breguet Yellow Gold Classique Heures Sautantes Jump Hour Ref. 3420 (New Arrival)

$55,000 USD
 
Patek Philippe Yellow Gold Calatrava Ref. 1589 with Dore Dial and Portuguese Hallmarks (New Arrival)

Patek Philippe Yellow Gold Calatrava Ref. 1589 with Dore Dial and Portuguese Hallmarks (New Arrival)

Patek Philippe Yellow Gold Calatrava Ref. 1589 with Dore Dial and Portuguese Hallmarks (New Arrival)

$39,500 USD
 
Rolex Yellow Gold Oyster Perpetual Day-Date Ref. 1803/8 with Claw Dial (New Arrival)

Rolex Yellow Gold Oyster Perpetual Day-Date Ref. 1803/8 with Claw Dial (New Arrival)

Rolex Yellow Gold Oyster Perpetual Day-Date Ref. 1803/8 with Claw Dial (New Arrival)

$10,800 USD
 
Audemars Piguet Steel Transitional Jumbo Royal Oak Ref. 5402 Rare No Serial Watch (New Arrival)

Audemars Piguet Steel Transitional Jumbo Royal Oak Ref. 5402 Rare No Serial Watch (New Arrival)

Audemars Piguet Steel Transitional Jumbo Royal Oak Ref. 5402 Rare No Serial Watch (New Arrival)

$80,000 USD
 
Patek Philippe White Gold Ref. 2592 (New Arrival)

Patek Philippe White Gold Ref. 2592 (New Arrival)

Patek Philippe White Gold Ref. 2592 (New Arrival)

$11,000 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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