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Patek Philippe - Patek Philippe Aquanaut Jumbo Watch Ref. 5065 - The Keystone Watches

Patek Philippe Aquanaut Jumbo Watch Ref. 5065

Patek Philippe Aquanaut Jumbo Watch Ref. 5065

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Patek Philippe - Patek Philippe Yellow Gold World Time Watch Ref. 5110, with Original Box and Papers - The Keystone Watches

Patek Philippe Yellow Gold World Time Watch Ref. 5110, with Original Box and Papers

Patek Philippe Yellow Gold World Time Watch Ref. 5110, with Original Box and Papers

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Rolex - Rolex Yellow Gold GMT-Master II Diamond & Sapphire Watch Ref. 116758 - The Keystone Watches

Rolex Yellow Gold GMT-Master II Diamond & Sapphire Watch Ref. 116758

Rolex Yellow Gold GMT-Master II Diamond & Sapphire Watch Ref. 116758

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Rolex - Rolex Yellow Gold Day-Date II Baguette Diamond Watch Ref. 218398 - The Keystone Watches

Rolex Yellow Gold Day-Date II Baguette Diamond Watch Ref. 218398

Rolex Yellow Gold Day-Date II Baguette Diamond Watch Ref. 218398

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Patek Philippe - Patek Philippe Aquanaut Jumbo Automatic Watch Ref. 5167 - The Keystone Watches

Patek Philippe Aquanaut Jumbo Automatic Watch Ref. 5167

Patek Philippe Aquanaut Jumbo Automatic Watch Ref. 5167

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Rolex - Rolex Yellow Gold GMT-Master II Sapphire Diamond Watch Ref. 116758 - The Keystone Watches

Rolex Yellow Gold GMT-Master II Sapphire Diamond Watch Ref. 116758

Rolex Yellow Gold GMT-Master II Sapphire Diamond Watch Ref. 116758

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A. Lange & Sohne - A. Lange & Sohne White Gold Langematik Perpetual Watch Ref. 310.026 - The Keystone Watches

A. Lange & Sohne White Gold Langematik Perpetual Watch Ref. 310.026

A. Lange & Sohne White Gold Langematik Perpetual Watch Ref. 310.026

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A. Lange & Sohne - A. Lange & Sohne Platinum Cabaret Tourbillon Watch - The Keystone Watches

A. Lange & Sohne Platinum Cabaret Tourbillon Watch

A. Lange & Sohne Platinum Cabaret Tourbillon Watch

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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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Rolex - Rolex Yellow Gold GMT Watch Ref. 1675 - The Keystone Watches

Rolex Yellow Gold GMT Watch Ref. 1675

Rolex Yellow Gold GMT Watch Ref. 1675

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Rolex - Rolex White Gold Day-Date Watch Ref. 1803, from 1972 - The Keystone Watches

Rolex White Gold Day-Date Watch Ref. 1803, from 1972

Rolex White Gold Day-Date Watch Ref. 1803, from 1972

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Patek Philippe - Patek Philippe Yellow Gold Annual Calendar Watch Ref. 5036 - The Keystone Watches

Patek Philippe Yellow Gold Annual Calendar Watch Ref. 5036

Patek Philippe Yellow Gold Annual Calendar Watch Ref. 5036

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Rolex - Rolex Yellow Gold Day-Date Pave Diamond Watch, from 1981 - The Keystone Watches

Rolex Yellow Gold Day-Date Pave Diamond Watch, from 1981

Rolex Yellow Gold Day-Date Pave Diamond Watch, from 1981

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Rolex - Rolex Red Submariner Watch Ref. 1680 with Original Warranty Paper and Hang Tag - The Keystone Watches

Rolex Red Submariner Watch Ref. 1680 with Original Warranty Paper and Hang Tag

Rolex Red Submariner Watch Ref. 1680 with Original Warranty Paper and Hang Tag

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Patek Philippe - Patek Philippe Platinum World Time Cloisonne Watch Ref. 5131 - The Keystone Watches

Patek Philippe Platinum World Time Cloisonne Watch Ref. 5131

Patek Philippe Platinum World Time Cloisonne Watch Ref. 5131

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Audemars Piguet - Audemars Piguet Royal Oak Platinum Skeletonized Tourbillon Watch Ref. 26511 - The Keystone Watches

Audemars Piguet Royal Oak Platinum Skeletonized Tourbillon Watch Ref. 26511

Audemars Piguet Royal Oak Platinum Skeletonized Tourbillon Watch Ref. 26511

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Patek Philippe - Patek Philippe Aquanaut Travel Time Watch Ref. 5164 - The Keystone Watches

Patek Philippe Aquanaut Travel Time Watch Ref. 5164

Patek Philippe Aquanaut Travel Time Watch Ref. 5164

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

Audemars Piguet White Gold Automatic Watch

Audemars Piguet White Gold Automatic Watch

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Audemars Piguet - Audemars Piguet Steel Unusual Shape Strap Watch - The Keystone Watches

Audemars Piguet Steel Unusual Shape Strap Watch

Audemars Piguet Steel Unusual Shape Strap Watch

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Richard Mille - Richard Mille Carbon Yas Marina Circuit Watch Ref. RM055 - The Keystone Watches

Richard Mille Carbon Yas Marina Circuit Watch Ref. RM055

Richard Mille Carbon Yas Marina Circuit Watch Ref. RM055

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Rolex - Rolex White Gold Cosmograph Daytona Watch Ref. 116519 - The Keystone Watches

Rolex White Gold Cosmograph Daytona Watch Ref. 116519

Rolex White Gold Cosmograph Daytona Watch Ref. 116519

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New Arrivals Preview
 
Patek Philippe Yellow Gold Tonneau Ref. 2469 (New Arrival)

Patek Philippe Yellow Gold Tonneau Ref. 2469 (New Arrival)

Patek Philippe Yellow Gold Tonneau Ref. 2469 (New Arrival)

$19,800 USD
 
Tissot Steel Chronograph with Black Gilt Dial (New Arrival)

Tissot Steel Chronograph with Black Gilt Dial (New Arrival)

Tissot Steel Chronograph with Black Gilt Dial (New Arrival)

$16,000 USD
 
Breguet Steel Chronograph Watch, 1940s (New Arrival)

Breguet Steel Chronograph Watch, 1940s (New Arrival)

Breguet Steel Chronograph Watch, 1940s (New Arrival)

$75,000 USD
 
Cartier Yellow Gold Bracelet Watch (New Arrival)

Cartier Yellow Gold Bracelet Watch (New Arrival)

Cartier Yellow Gold Bracelet Watch (New Arrival)

$30,000 USD
 
Patek Philippe Yellow Gold Calatrava Breguet Numerals Ref. 2533 (New Arrival)

Patek Philippe Yellow Gold Calatrava Breguet Numerals Ref. 2533 (New Arrival)

Patek Philippe Yellow Gold Calatrava Breguet Numerals Ref. 2533 (New Arrival)

$105,000 USD
 
Vacheron Constantin - Vacheron Constantin Yellow Gold Chronograph Watch Ref. 4178 with Important Provenance (New Arrival) - The Keystone Watches

Vacheron Constantin Yellow Gold Chronograph Watch Ref. 4178 with Important Provenance (New Arrival)

Vacheron Constantin Yellow Gold Chronograph Watch Ref. 4178 with Important Provenance (New Arrival)

$60,000 USD
 
Audemars Piguet - Audemars Piguet White Gold Rectangular Watch with Lapis Watch (New Arrival) - The Keystone Watches

Audemars Piguet White Gold Rectangular Watch with Lapis Watch (New Arrival)

Audemars Piguet White Gold Rectangular Watch with Lapis Watch (New Arrival)

$18,000 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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