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Cartier - Cartier Paris White Gold Diamond Tank Watch, Movement by Vacheron Constantin - The Keystone Watches

Cartier Paris White Gold Diamond Tank Watch, Movement by Vacheron Constantin

Cartier Paris White Gold Diamond Tank Watch, Movement by Vacheron Constantin

$37,500 USD
 
Patek Philippe - Patek Philippe Platinum Perpetual Calendar Watch Ref. 5040 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Watch Ref. 5040

Patek Philippe Platinum Perpetual Calendar Watch Ref. 5040

$55,000 USD
 
Piaget - Piaget White Gold and Diamond Watch Ref. 8056 with Opal and Onyx Dial - The Keystone Watches

Piaget White Gold and Diamond Watch Ref. 8056 with Opal and Onyx Dial

Piaget White Gold and Diamond Watch Ref. 8056 with Opal and Onyx Dial

$18,000 USD
 
Piaget - Piaget White Gold Watch Ref. 9806 with Onyx & Mother of Pearl - The Keystone Watches

Piaget White Gold Watch Ref. 9806 with Onyx & Mother of Pearl

Piaget White Gold Watch Ref. 9806 with Onyx & Mother of Pearl

$10,800 USD
 
Patek Philippe - Patek Philippe White Gold Ellipse Ref. 4175 with Khanjar Dial - The Keystone Watches

Patek Philippe White Gold Ellipse Ref. 4175 with Khanjar Dial

Patek Philippe White Gold Ellipse Ref. 4175 with Khanjar Dial

$10,500 USD
 
Patek Philippe White Gold Backwind Calatrava Ref. 3563

Patek Philippe White Gold Backwind Calatrava Ref. 3563

Patek Philippe White Gold Backwind Calatrava Ref. 3563

$16,000 USD
 
Piaget - Piaget White Gold Large Diagonal Baguette Bezel Watch with Onyx Dial 7334A6 - The Keystone Watches

Piaget White Gold Large Diagonal Baguette Bezel Watch with Onyx Dial 7334A6

Piaget White Gold Large Diagonal Baguette Bezel Watch with Onyx Dial 7334A6

$18,750 USD
 
Jaeger LeCoultre White Gold Mystery Ref. 7673

Jaeger LeCoultre White Gold Mystery Ref. 7673

Jaeger LeCoultre White Gold Mystery Ref. 7673

$13,500 USD
 
Patek Philippe - Patek Philippe Platinum Calatrava Watch Ref. 570 with Archive - The Keystone Watches

Patek Philippe Platinum Calatrava Watch Ref. 570 with Archive

Patek Philippe Platinum Calatrava Watch Ref. 570 with Archive

$165,000 USD
 
Cartier Yellow Gold Tank Louis Ref. 1612 on Yellow Gold Bracelet

Cartier Yellow Gold Tank Louis Ref. 1612 on Yellow Gold Bracelet

Cartier Yellow Gold Tank Louis Ref. 1612 on Yellow Gold Bracelet

$26,500 USD
 
Richard Mille Olympic-Worn, Yohan Blake Tourbillon RM38 Prototype

Richard Mille Olympic-Worn, Yohan Blake Tourbillon RM38 Prototype

Richard Mille Olympic-Worn, Yohan Blake Tourbillon RM38 Prototype

$1,500,000 USD
 
IWC White Gold Sapphire and Diamond Cover Watch

IWC White Gold Sapphire and Diamond Cover Watch

IWC White Gold Sapphire and Diamond Cover Watch

$7,800 USD
 
Cartier Yellow Gold Mystery Pocket Watch

Cartier Yellow Gold Mystery Pocket Watch

Cartier Yellow Gold Mystery Pocket Watch

$36,000 USD
 
Audemars Piguet Yellow Gold Ruby & Diamond Watch

Audemars Piguet Yellow Gold Ruby & Diamond Watch

Audemars Piguet Yellow Gold Ruby & Diamond Watch

$78,000 USD
 
Patek Philippe - Patek Philippe White Gold Calatrava Ref. 3588 with Breguet Numerals - The Keystone Watches

Patek Philippe White Gold Calatrava Ref. 3588 with Breguet Numerals

Patek Philippe White Gold Calatrava Ref. 3588 with Breguet Numerals

$15,500 USD
 
Vacheron Constantin White Gold Pocket Watch

Vacheron Constantin White Gold Pocket Watch

Vacheron Constantin White Gold Pocket Watch

$7,500 USD
 
Vacheron Constantin - Vacheron Constantin Yellow Gold Pocket Watch with Original Box and Warranty - The Keystone Watches

Vacheron Constantin Yellow Gold Pocket Watch with Original Box and Warranty

Vacheron Constantin Yellow Gold Pocket Watch with Original Box and Warranty

$6,500 USD
 
Piaget Yellow Gold and Diamond Pocket Watch with Mother of Pearl and Diamond Dial

Piaget Yellow Gold and Diamond Pocket Watch with Mother of Pearl and Diamond Dial

Piaget Yellow Gold and Diamond Pocket Watch with Mother of Pearl and Diamond Dial

$13,500 USD
 

Cartier Yellow Gold Large Tank Cintree, Circa 1960s

Cartier Yellow Gold Large Tank Cintree, Circa 1960s

$120,000 USD
 
Audemars Piguet - Audemars Piguet White Gold Cobra Band Watch Ref. 56525 - The Keystone Watches

Audemars Piguet White Gold Cobra Band Watch Ref. 56525

Audemars Piguet White Gold Cobra Band Watch Ref. 56525

$15,500 USD
 
Patek Philippe Yellow Gold Pocket Watch Minute Repeater, Circa 1905

Patek Philippe Yellow Gold Pocket Watch Minute Repeater, Circa 1905

Patek Philippe Yellow Gold Pocket Watch Minute Repeater, Circa 1905

$28,000 USD
 
Rolex Yellow Gold Day-Date Ref. 18208 with Mother of Pearl

Rolex Yellow Gold Day-Date Ref. 18208 with Mother of Pearl

Rolex Yellow Gold Day-Date Ref. 18208 with Mother of Pearl

$28,500 USD
 
Patek Philippe Yellow Gold and Enamel Pocket Watch, Circa 1904

Patek Philippe Yellow Gold and Enamel Pocket Watch, Circa 1904

Patek Philippe Yellow Gold and Enamel Pocket Watch, Circa 1904

$9,750 USD
 
IWC - IWC White Gold Yacht Club Onyx & Diamond Watch - The Keystone Watches

IWC White Gold Yacht Club Onyx & Diamond Watch

IWC White Gold Yacht Club Onyx & Diamond Watch

$45,000 USD
 

Audemars Piguet Steel Automatic Watch with Smoked Vignette Dial

Audemars Piguet Steel Automatic Watch with Smoked Vignette Dial

$9,500 USD
 

Piaget White Gold Onyx and Diamond Watch Ref. 93419

Piaget White Gold Onyx and Diamond Watch Ref. 93419

$15,500 USD
 
Audemars Piguet - Audemars Piguet Yellow Gold Royal Oak Perpetual Watch Ref. 25554BA in Outstanding Original Condition - The Keystone Watches

Audemars Piguet Yellow Gold Royal Oak Perpetual Watch Ref. 25554BA in Outstanding Original Condition

Audemars Piguet Yellow Gold Royal Oak Perpetual Watch Ref. 25554BA in Outstanding Original Condition

$128,500 USD
 
Cartier Yellow Gold Cristallor Faberge Ref. 78096

Cartier Yellow Gold Cristallor Faberge Ref. 78096

Cartier Yellow Gold Cristallor Faberge Ref. 78096

$29,500 USD
 
Patek Philippe - Patek Philippe Yellow Gold Vintage Jumbo Ellipse Ref. 3798/3 on JPE Chain Band - The Keystone Watches

Patek Philippe Yellow Gold Vintage Jumbo Ellipse Ref. 3798/3 on JPE Chain Band

Patek Philippe Yellow Gold Vintage Jumbo Ellipse Ref. 3798/3 on JPE Chain Band

$17,000 USD
 
Piaget - Piaget White Gold Diamond Watch Ref. 9066 with Pave Dial - The Keystone Watches

Piaget White Gold Diamond Watch Ref. 9066 with Pave Dial

Piaget White Gold Diamond Watch Ref. 9066 with Pave Dial

$11,500 USD
 

Breguet White Gold Classique Watch Ref. 5197

Breguet White Gold Classique Watch Ref. 5197

$12,000 USD
 

Gubelin Yellow Gold, Sapphire and Diamond Cover Watch

Gubelin Yellow Gold, Sapphire and Diamond Cover Watch

$16,500 USD
 

Patek Philippe Yellow Gold Lapis Lazuli Ref. 4290

Patek Philippe Yellow Gold Lapis Lazuli Ref. 4290

$38,000 USD
 
Piaget - Piaget Yellow Gold Baguette Diamond & Ruby Cover Watch - The Keystone Watches

Piaget Yellow Gold Baguette Diamond & Ruby Cover Watch

Piaget Yellow Gold Baguette Diamond & Ruby Cover Watch

$350,000 USD
 

Piaget Yellow Gold Diamond Bangle Watch

Piaget Yellow Gold Diamond Bangle Watch

$65,000 USD
 

Piaget Yellow Gold Lapis Pendent Necklace Watch

Piaget Yellow Gold Lapis Pendent Necklace Watch

$40,000 USD
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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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