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Patek Philippe Yellow Gold Diamond Sapphire Watch, Ref. 3319

Patek Philippe Yellow Gold Diamond Sapphire Watch, Ref. 3319

Patek Philippe Yellow Gold Diamond Sapphire Watch, Ref. 3319

$20,000 USD
 
Patek Philippe Yellow Gold Ellipse Bracelet Watch Ref. 3838

Patek Philippe Yellow Gold Ellipse Bracelet Watch Ref. 3838

Patek Philippe Yellow Gold Ellipse Bracelet Watch Ref. 3838

$19,500 USD
 
Patek Philippe Yellow Gold Chronograph Two-Tone Dial Watch Ref. 1463

Patek Philippe Yellow Gold Chronograph Two-Tone Dial Watch Ref. 1463

Patek Philippe Yellow Gold Chronograph Two-Tone Dial Watch Ref. 1463

$300,000 USD
 
Patek Philippe Yellow Gold Nautilus Ref. 3700 with Original Diamonds

Patek Philippe Yellow Gold Nautilus Ref. 3700 with Original Diamonds

Patek Philippe Yellow Gold Nautilus Ref. 3700 with Original Diamonds

"Price upon request"
 
Patek Philippe Yellow Gold Perpetual Calendar Watch Ref. 3450 with Clear Exhibition Back

Patek Philippe Yellow Gold Perpetual Calendar Watch Ref. 3450 with Clear Exhibition Back

Patek Philippe Yellow Gold Perpetual Calendar Watch Ref. 3450 with Clear Exhibition Back

$350,000 USD
 
Patek Philippe Yellow Gold Art Deco Gondolo Watch, Circa 1913

Patek Philippe Yellow Gold Art Deco Gondolo Watch, Circa 1913

Patek Philippe Yellow Gold Art Deco Gondolo Watch, Circa 1913

$90,000 USD
 
Patek Philippe Onyx, Malachite & Diamond Watch Ref. 4282

Patek Philippe Onyx, Malachite & Diamond Watch Ref. 4282

Patek Philippe Onyx, Malachite & Diamond Watch Ref. 4282

$60,000 USD
 
Patek Philiipe Yellow Gold Pepita Watch Ref. 4121

Patek Philiipe Yellow Gold Pepita Watch Ref. 4121

Patek Philiipe Yellow Gold Pepita Watch Ref. 4121

$55,000 USD
 
Patek Philippe Yellow Gold Lapis Lazuli Ref. 4290

Patek Philippe Yellow Gold Lapis Lazuli Ref. 4290

Patek Philippe Yellow Gold Lapis Lazuli Ref. 4290

$38,000 USD
 
Patek Philippe Yellow Gold Nautilus Ref. 3700 with Diamond Bezel

Patek Philippe Yellow Gold Nautilus Ref. 3700 with Diamond Bezel

Patek Philippe Yellow Gold Nautilus Ref. 3700 with Diamond Bezel

$285,000 USD
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New Arrivals Preview
 
Patek Philippe Pink Gold for Guillermin Paris, Circa 1947 (New Arrival)

Patek Philippe Pink Gold for Guillermin Paris, Circa 1947 (New Arrival)

Patek Philippe Pink Gold for Guillermin Paris, Circa 1947 (New Arrival)

$22,000 USD
 
Piaget Yellow Gold Lapis Braided Bracelet Watch (New Arrival)

Piaget Yellow Gold Lapis Braided Bracelet Watch (New Arrival)

Piaget Yellow Gold Lapis Braided Bracelet Watch (New Arrival)

$19,500 USD
 
Cartier Yellow Gold Blue Enamel Mecanique Obus Watch (New Arrival)

Cartier Yellow Gold Blue Enamel Mecanique Obus Watch (New Arrival)

Cartier Yellow Gold Blue Enamel Mecanique Obus Watch (New Arrival)

$72,000 USD
 
Rolex Yellow Gold Mechanical Cellini Ref. 4103 (New Arrival)

Rolex Yellow Gold Mechanical Cellini Ref. 4103 (New Arrival)

Rolex Yellow Gold Mechanical Cellini Ref. 4103 (New Arrival)

$6,800 USD
 
Rolex Yellow Gold Datejust Ref. 68278G (New Arrival)

Rolex Yellow Gold Datejust Ref. 68278G (New Arrival)

Rolex Yellow Gold Datejust Ref. 68278G (New Arrival)

$18,500 USD
 
Chopard Yellow Gold Happy Diamonds Sapphire & Diamonds Ref. 27/6258-23 (New Arrival)

Chopard Yellow Gold Happy Diamonds Sapphire & Diamonds Ref. 27/6258-23 (New Arrival)

Chopard Yellow Gold Happy Diamonds Sapphire & Diamonds Ref. 27/6258-23 (New Arrival)

$11,500 USD
 
Audemars Piguet Two-Tone Royal Oak Ref. 56303 (New Arrival)

Audemars Piguet Two-Tone Royal Oak Ref. 56303 (New Arrival)

Audemars Piguet Two-Tone Royal Oak Ref. 56303 (New Arrival)

$18,000 USD
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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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