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Patek Philippe Platinum Perpetual Calendar Minute Repeater Ref. 5074, Single Sealed

Patek Philippe Platinum Perpetual Calendar Minute Repeater Ref. 5074, Single Sealed

Patek Philippe Platinum Perpetual Calendar Minute Repeater Ref. 5074, Single Sealed

"Price upon request"
 

Patek Philippe Platinum Annual Calendar Chronograph Watch Ref. 5960

Patek Philippe Platinum Annual Calendar Chronograph Watch Ref. 5960

Sold Out

 
Patek Philippe - Patek Philippe Platinum Perpetual Calendar Chronograph Ref. 5970 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Chronograph Ref. 5970

Patek Philippe Platinum Perpetual Calendar Chronograph Ref. 5970

Sold Out

 

Patek Philippe Platinum Perpetual Calendar Ref. 3940

Patek Philippe Platinum Perpetual Calendar Ref. 3940

Sold Out

 

Patek Philippe Platinum Gondolo Ref. 5098

Patek Philippe Platinum Gondolo Ref. 5098

Sold Out

 

Patek Philippe Platinum Annual Calendar Chronograph Ref. 5960P-016

Patek Philippe Platinum Annual Calendar Chronograph Ref. 5960P-016

Sold Out

 
Patek Philippe Platinum Square Watch Ref. 2488

Patek Philippe Platinum Square Watch Ref. 2488

Patek Philippe Platinum Square Watch Ref. 2488

Sold Out

 

Patek Philippe Platinum Perpetual Calendar Split Seconds Watch Ref. 5204

Patek Philippe Platinum Perpetual Calendar Split Seconds Watch Ref. 5204

Sold Out

 

Patek Philippe Platinum World Time Watch Ref. 5131, Single Sealed

Patek Philippe Platinum World Time Watch Ref. 5131, Single Sealed

Sold Out

 
Patek Philippe Platinum Chronograph Watch Ref. 5070P

Patek Philippe Platinum Chronograph Watch Ref. 5070P

Patek Philippe Platinum Chronograph Watch Ref. 5070P

Sold Out

 

Patek Philippe Platinum Perpetual Calendar Watch Ref. 5140 (New Arrival)

Patek Philippe Platinum Perpetual Calendar Watch Ref. 5140 (New Arrival)

Sold Out

 

Patek Philippe Platinum Chronograph Watch Ref. 5960 with Box and Papers

Patek Philippe Platinum Chronograph Watch Ref. 5960 with Box and Papers

Sold Out

 

Patek Philippe Platinum Ellipse Ref. 5738P

Patek Philippe Platinum Ellipse Ref. 5738P

Sold Out

 
Patek Philippe - Patek Philippe Platinum Perpetual Calendar Ref. 5496 with Box and Papers - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Ref. 5496 with Box and Papers

Patek Philippe Platinum Perpetual Calendar Ref. 5496 with Box and Papers

Sold Out

 

Patek Philippe Platinum Calatrava Watch Ref. 5196 (New Arrival)

Patek Philippe Platinum Calatrava Watch Ref. 5196 (New Arrival)

Sold Out

 
Patek Philippe Platinum Perpetual Calendar Split Seconds Chronograph Ref. 5004P with Unique Red Numeral 2 (Private Sale)

Patek Philippe Platinum Perpetual Calendar Split Seconds Chronograph Ref. 5004P with Unique Red Numeral 2 (Private Sale)

Patek Philippe Platinum Perpetual Calendar Split Seconds Chronograph Ref. 5004P with Unique Red Numeral 2 (Private Sale)

"Price upon request"
 
Patek Philippe Platinum Perpetual Calendar Minute Repeater Ref. 5307 (Private Sale)

Patek Philippe Platinum Perpetual Calendar Minute Repeater Ref. 5307 (Private Sale)

Patek Philippe Platinum Perpetual Calendar Minute Repeater Ref. 5307 (Private Sale)

"Price upon request"
 
Patek Philippe Gilbert Albert Diamond Cover Watch Ref. 3266  (Private Sale)

Patek Philippe Gilbert Albert Diamond Cover Watch Ref. 3266 (Private Sale)

Patek Philippe Gilbert Albert Diamond Cover Watch Ref. 3266 (Private Sale)

"Price upon request"
 

Patek Philippe Platinum Handcraft Watch Ref. 5077 with Enamel Iris and Night Fireflies

Patek Philippe Platinum Handcraft Watch Ref. 5077 with Enamel Iris and Night Fireflies

Sold Out

 
Patek Philippe - Patek Philippe Platinum Calatrava Ref. 5196 - The Keystone Watches

Patek Philippe Platinum Calatrava Ref. 5196

Patek Philippe Platinum Calatrava Ref. 5196

Sold Out

 

Patek Philippe Platinum Annual Calendar Chronograph Watch Ref. 5960

Patek Philippe Platinum Annual Calendar Chronograph Watch Ref. 5960

Sold Out

 

Patek Philippe Platinum Minute Repeater Watch Ref. 5078

Patek Philippe Platinum Minute Repeater Watch Ref. 5078

Sold Out

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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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