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Patek Philippe White Gold Square Watch Ref. 3555

Patek Philippe White Gold Square Watch Ref. 3555

Patek Philippe White Gold Square Watch Ref. 3555

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Patek Philippe - Patek Philippe White Gold Gondolo Trapeze Ref. 5489G - The Keystone Watches

Patek Philippe White Gold Gondolo Trapeze Ref. 5489G

Patek Philippe White Gold Gondolo Trapeze Ref. 5489G

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Cartier Vintage Platinum Tonneau Mecanique Watch

Cartier Vintage Platinum Tonneau Mecanique Watch

Cartier Vintage Platinum Tonneau Mecanique Watch

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Rolex Platinum Day Date Ref. 18206

Rolex Platinum Day Date Ref. 18206

Rolex Platinum Day Date Ref. 18206

Sold Out

 
Patek Philippe - Patek Philippe White Gold Vintage Ladies Watch Ref. 4217 - The Keystone Watches

Patek Philippe White Gold Vintage Ladies Watch Ref. 4217

Patek Philippe White Gold Vintage Ladies Watch Ref. 4217

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Patek White Gold Vintage Ellipse with Original Diamonds Ref. 4177

Patek White Gold Vintage Ellipse with Original Diamonds Ref. 4177

Patek White Gold Vintage Ellipse with Original Diamonds Ref. 4177

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Rolex White Gold Zenith Daytona Ref. 16519 with Mother of Pearl Dial and Original Paper

Rolex White Gold Zenith Daytona Ref. 16519 with Mother of Pearl Dial and Original Paper

Rolex White Gold Zenith Daytona Ref. 16519 with Mother of Pearl Dial and Original Paper

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Cartier - Cartier Two Tone Santos Ref. 2961 with Godron Bracelet - The Keystone Watches

Cartier Two Tone Santos Ref. 2961 with Godron Bracelet

Cartier Two Tone Santos Ref. 2961 with Godron Bracelet

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Patek Philippe - Patek Philippe White Gold Calatrava Ref. 3468 with Original Warranty - The Keystone Watches

Patek Philippe White Gold Calatrava Ref. 3468 with Original Warranty

Patek Philippe White Gold Calatrava Ref. 3468 with Original Warranty

Sold Out

 
Audemars Piguet - Audemars Piguet Yellow Gold Quantieme Perpetual Watch Ref. 5549 - The Keystone Watches

Audemars Piguet Yellow Gold Quantieme Perpetual Watch Ref. 5549

Audemars Piguet Yellow Gold Quantieme Perpetual Watch Ref. 5549

Sold Out

 
Vacheron Constantin Rose Gold Malte Regulateur Ref. 42005

Vacheron Constantin Rose Gold Malte Regulateur Ref. 42005

Vacheron Constantin Rose Gold Malte Regulateur Ref. 42005

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Patek Philippe Rose Gold Nautilus Chronograph Watch Ref. 5980, Tiffany & Co., 2018

Patek Philippe Rose Gold Nautilus Chronograph Watch Ref. 5980, Tiffany & Co., 2018

Patek Philippe Rose Gold Nautilus Chronograph Watch Ref. 5980, Tiffany & Co., 2018

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Cartier Yellow Gold Baignoire Bangle Watch Ref. WGBA0021

Cartier Yellow Gold Baignoire Bangle Watch Ref. WGBA0021

Cartier Yellow Gold Baignoire Bangle Watch Ref. WGBA0021

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Omega Steel Speedmaster Ref. CK2998, Blue Limited Edition

Omega Steel Speedmaster Ref. CK2998, Blue Limited Edition

Omega Steel Speedmaster Ref. CK2998, Blue Limited Edition

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

Patek Philippe Yellow Gold Nautilus Watch Ref. 3700

Patek Philippe Yellow Gold Nautilus Watch Ref. 3700

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Patek Philippe Yellow Gold Neptune Moonphase Power Reserve Ref. 5085

Patek Philippe Yellow Gold Neptune Moonphase Power Reserve Ref. 5085

Patek Philippe Yellow Gold Neptune Moonphase Power Reserve Ref. 5085

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Cartier - Cartier Yellow Gold Tank Normale Watch Ref. 78902 with Rare Dial - The Keystone Watches

Cartier Yellow Gold Tank Normale Watch Ref. 78902 with Rare Dial

Cartier Yellow Gold Tank Normale Watch Ref. 78902 with Rare Dial

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Vacheron Constantin - Vacheron Constantin Yellow Gold Calatrava Watch - The Keystone Watches

Vacheron Constantin Yellow Gold Calatrava Watch

Vacheron Constantin Yellow Gold Calatrava Watch

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

Audemars Piguet Yellow Gold Rectangular Bracelet Watch

Audemars Piguet Yellow Gold Rectangular Bracelet Watch

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Patek Philippe Yellow Gold World Time Watch Ref. 1415

Patek Philippe Yellow Gold World Time Watch Ref. 1415

Patek Philippe Yellow Gold World Time Watch Ref. 1415

"Price upon request"
 
Cartier - Cartier Yellow Gold Mini Baignoire on Bracelet Ref. 2960 - The Keystone Watches

Cartier Yellow Gold Mini Baignoire on Bracelet Ref. 2960

Cartier Yellow Gold Mini Baignoire on Bracelet Ref. 2960

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Audemars Piguet - Audemars Piguet Yellow Gold Royal Oak Watch Ref. 56343 with Pave Diamond Dials - The Keystone Watches

Audemars Piguet Yellow Gold Royal Oak Watch Ref. 56343 with Pave Diamond Dials

Audemars Piguet Yellow Gold Royal Oak Watch Ref. 56343 with Pave Diamond Dials

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Rolex - Rolex Yellow Gold Precision Star Dial Watch - The Keystone Watches

Rolex Yellow Gold Precision Star Dial Watch

Rolex Yellow Gold Precision Star Dial Watch

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

Audemars Piguet White Gold Square Watch

Audemars Piguet White Gold Square Watch

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Piaget White Gold Ladies Lapis Dial Diamond Bezel Watch Ref. 9338

Piaget White Gold Ladies Lapis Dial Diamond Bezel Watch Ref. 9338

Piaget White Gold Ladies Lapis Dial Diamond Bezel Watch Ref. 9338

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Rolex - Rolex Steel Oysterquartz Ref. 17000 with Buckley Dial and Hands - The Keystone Watches

Rolex Steel Oysterquartz Ref. 17000 with Buckley Dial and Hands

Rolex Steel Oysterquartz Ref. 17000 with Buckley Dial and Hands

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Audemars Piguet - Audemars Piguet White Gold Beaded Bracelet Watch - The Keystone Watches

Audemars Piguet White Gold Beaded Bracelet Watch

Audemars Piguet White Gold Beaded Bracelet Watch

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Audemars Piguet Yellow Gold Automatic Vintage Watch Ref. 1459

Audemars Piguet Yellow Gold Automatic Vintage Watch Ref. 1459

Audemars Piguet Yellow Gold Automatic Vintage Watch Ref. 1459

Sold Out

 
Omega - Omega Steel Seamaster 120 Ref. 535.007 - The Keystone Watches

Omega Steel Seamaster 120 Ref. 535.007

Omega Steel Seamaster 120 Ref. 535.007

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Vacheron Constantin - Vacheron Constantin Rose Gold Patrimony Ref. 81180 - The Keystone Watches

Vacheron Constantin Rose Gold Patrimony Ref. 81180

Vacheron Constantin Rose Gold Patrimony Ref. 81180

Sold Out

 

Patek Philippe White Gold Annual Calendar Ref. 5146

Patek Philippe White Gold Annual Calendar Ref. 5146

Sold Out

 
Rolex - Rolex Yellow Gold Day Date Ref. 1803 with Box and Papers - The Keystone Watches

Rolex Yellow Gold Day Date Ref. 1803 with Box and Papers

Rolex Yellow Gold Day Date Ref. 1803 with Box and Papers

Sold Out

 
Cartier - Cartier Yellow Gold Vintage Ladies Tank - The Keystone Watches

Cartier Yellow Gold Vintage Ladies Tank

Cartier Yellow Gold Vintage Ladies Tank

Sold Out

 
Rolex - Rolex White Gold Day-Date Bark Pave Diamond Watch Ref. 18079 - The Keystone Watches

Rolex White Gold Day-Date Bark Pave Diamond Watch Ref. 18079

Rolex White Gold Day-Date Bark Pave Diamond Watch Ref. 18079

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Patek Philippe White Gold Annual Calendar Ref. 5146

Patek Philippe White Gold Annual Calendar Ref. 5146

Patek Philippe White Gold Annual Calendar Ref. 5146

Sold Out

 
Rolex Rose Gold Daytona Ref. 116505 Sundust Dial

Rolex Rose Gold Daytona Ref. 116505 Sundust Dial

Rolex Rose Gold Daytona Ref. 116505 Sundust Dial

Sold Out

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New Arrivals Preview
 
Cartier Platinum Tank A Guichet Ref. WGTA0236, 2025 Edition (New Arrival)

Cartier Platinum Tank A Guichet Ref. WGTA0236, 2025 Edition (New Arrival)

Cartier Platinum Tank A Guichet Ref. WGTA0236, 2025 Edition (New Arrival)

$150,000 USD
 
Patek Philippe White Gold Calatrava Watch Ref. 4189 (New Arrival)

Patek Philippe White Gold Calatrava Watch Ref. 4189 (New Arrival)

Patek Philippe White Gold Calatrava Watch Ref. 4189 (New Arrival)

$9,800 USD
 
Rolex Yellow Gold Day-Date Watch Ref. 1803 with Claw Dial (New Arrival)

Rolex Yellow Gold Day-Date Watch Ref. 1803 with Claw Dial (New Arrival)

Rolex Yellow Gold Day-Date Watch Ref. 1803 with Claw Dial (New Arrival)

$18,750 USD
 
Boucheron - Boucheron Yellow Gold Invisible Set Sapphire Watch (New Arrival) - The Keystone Watches

Boucheron Yellow Gold Invisible Set Sapphire Watch (New Arrival)

Boucheron Yellow Gold Invisible Set Sapphire Watch (New Arrival)

$9,500 USD
 
Rolex - Rolex Yellow Gold Cellini Watch Ref. 4014/8 with Orange Dial (New Arrival) - The Keystone Watches

Rolex Yellow Gold Cellini Watch Ref. 4014/8 with Orange Dial (New Arrival)

Rolex Yellow Gold Cellini Watch Ref. 4014/8 with Orange Dial (New Arrival)

$7,500 USD
 
Rolex Steel Submariner Ref. 5513 with Pumkin Lume (New Arrival)

Rolex Steel Submariner Ref. 5513 with Pumkin Lume (New Arrival)

Rolex Steel Submariner Ref. 5513 with Pumkin Lume (New Arrival)

$15,500 USD
 
Patek Philiipe White Gold Calatrava Watch Ref. 3919 (New Arrival)

Patek Philiipe White Gold Calatrava Watch Ref. 3919 (New Arrival)

Patek Philiipe White Gold Calatrava Watch Ref. 3919 (New Arrival)

$15,000 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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