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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Minute Repeater Chronograph Ref. 5208 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Minute Repeater Chronograph Ref. 5208

Patek Philippe Platinum Perpetual Calendar Minute Repeater Chronograph Ref. 5208

Sold Out

 
IWC - IWC Yellow Gold Perpetual Calendar Chronograph Da Vinci Ref. IW9253-05 - The Keystone Watches

IWC Yellow Gold Perpetual Calendar Chronograph Da Vinci Ref. IW9253-05

IWC Yellow Gold Perpetual Calendar Chronograph Da Vinci Ref. IW9253-05

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Patek Philippe Unique Platinum Monopusher Split Seconds Chronograph Ref. 5959

Patek Philippe Unique Platinum Monopusher Split Seconds Chronograph Ref. 5959

Patek Philippe Unique Platinum Monopusher Split Seconds Chronograph Ref. 5959

"Price upon request"
 
Patek Philippe Yellow Gold Chronograph Pocket Watch

Patek Philippe Yellow Gold Chronograph Pocket Watch

Patek Philippe Yellow Gold Chronograph Pocket Watch

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Audemars Piguet - Audemars Piguet Steel Huitieme Chronograph Ref. 25644 - The Keystone Watches

Audemars Piguet Steel Huitieme Chronograph Ref. 25644

Audemars Piguet Steel Huitieme Chronograph Ref. 25644

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Rolex Chronograph Jean Claude Killy Ref. 6036 in Superb Condition

Rolex Chronograph Jean Claude Killy Ref. 6036 in Superb Condition

Sold Out

 
Patek Philippe - Patek Philippe Steel Annual Calendar Chronograph Ref. 5960 - The Keystone Watches

Patek Philippe Steel Annual Calendar Chronograph Ref. 5960

Patek Philippe Steel Annual Calendar Chronograph Ref. 5960

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Patek Philippe Platinum Split Seconds Monopusher Chronograph 5959

Patek Philippe Platinum Split Seconds Monopusher Chronograph 5959

Patek Philippe Platinum Split Seconds Monopusher Chronograph 5959

"Price upon request"
 
Patek Philippe - Patek Philippe Platinum Chronograph Watch Ref. 5070, Single Sealed - The Keystone Watches

Patek Philippe Platinum Chronograph Watch Ref. 5070, Single Sealed

Patek Philippe Platinum Chronograph Watch Ref. 5070, Single Sealed

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Patek Philippe - Patek Philippe Platinum Split Seconds Chronograph Watch Ref. 5370 - The Keystone Watches

Patek Philippe Platinum Split Seconds Chronograph Watch Ref. 5370

Patek Philippe Platinum Split Seconds Chronograph Watch Ref. 5370

Sold Out

 
Patek Philippe - Patek Philippe Rose Gold Annual Calendar Chronograph Ref. 5961R with Factory Diamonds - The Keystone Watches

Patek Philippe Rose Gold Annual Calendar Chronograph Ref. 5961R with Factory Diamonds

Patek Philippe Rose Gold Annual Calendar Chronograph Ref. 5961R with Factory Diamonds

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Patek Philippe - Patek Philippe Rose Gold Annual Calendar Chronograph Ref. 5960 - The Keystone Watches

Patek Philippe Rose Gold Annual Calendar Chronograph Ref. 5960

Patek Philippe Rose Gold Annual Calendar Chronograph Ref. 5960

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Audemars Piguet Steel The Beast Royal Oak Offshore Chronograph Ref. 25721 with Certificate

Audemars Piguet Steel The Beast Royal Oak Offshore Chronograph Ref. 25721 with Certificate

Audemars Piguet Steel The Beast Royal Oak Offshore Chronograph Ref. 25721 with Certificate

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Franck Muller - Franck Muller White Gold Chronograph Ref. 7000CCDCD - The Keystone Watches

Franck Muller White Gold Chronograph Ref. 7000CCDCD

Franck Muller White Gold Chronograph Ref. 7000CCDCD

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A. Lange & Sohne White Gold Flyback Chronograph Ref. 401.026

A. Lange & Sohne White Gold Flyback Chronograph Ref. 401.026

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Patek Philippe - Patek Philippe Platinum Annual Calendar Chronograph Ref. 5960P - The Keystone Watches

Patek Philippe Platinum Annual Calendar Chronograph Ref. 5960P

Patek Philippe Platinum Annual Calendar Chronograph Ref. 5960P

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IWC - IWC Yellow Gold Da Vinci Perpetual Calendar Chronograph Ref. IW3750 - The Keystone Watches

IWC Yellow Gold Da Vinci Perpetual Calendar Chronograph Ref. IW3750

IWC Yellow Gold Da Vinci Perpetual Calendar Chronograph Ref. IW3750

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Patek Philippe - Patek Philippe White Gold Chronograph Ref. 5170G - The Keystone Watches

Patek Philippe White Gold Chronograph Ref. 5170G

Patek Philippe White Gold Chronograph Ref. 5170G

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

Patek Philippe Platinum Perpetual Calendar Chronograph Watch Ref. 5970

Patek Philippe Platinum Perpetual Calendar Chronograph Watch Ref. 5970

Sold Out

 

Patek Philippe Rose Gold Chronograph Ref. 1579

Patek Philippe Rose Gold Chronograph Ref. 1579

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Franck Muller - Franck Muller Platinum Chronograph Tourbillon Ref. 7850CCT - The Keystone Watches

Franck Muller Platinum Chronograph Tourbillon Ref. 7850CCT

Franck Muller Platinum Chronograph Tourbillon Ref. 7850CCT

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Audemars Piguet - Audemars Piguet Steel Royal Oak Chronograph Ref. 25860ST - The Keystone Watches

Audemars Piguet Steel Royal Oak Chronograph Ref. 25860ST

Audemars Piguet Steel Royal Oak Chronograph Ref. 25860ST

Sold Out

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New Arrivals Preview
 
Rolex Yellow Gold Queen Midas Watch Ref. 4314 with Lapis and Diamond Dial (New Arrival)

Rolex Yellow Gold Queen Midas Watch Ref. 4314 with Lapis and Diamond Dial (New Arrival)

Rolex Yellow Gold Queen Midas Watch Ref. 4314 with Lapis and Diamond Dial (New Arrival)

$38,000 USD
 
Patek Philippe White Gold Baguette Diamond Watch Ref. 3540 (New Arrival)

Patek Philippe White Gold Baguette Diamond Watch Ref. 3540 (New Arrival)

Patek Philippe White Gold Baguette Diamond Watch Ref. 3540 (New Arrival)

$30,000 USD
 
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)

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

$60,000 USD
 
Breguet Cushion Shaped Diver 200m Watch (New Arrival)

Breguet Cushion Shaped Diver 200m Watch (New Arrival)

Breguet Cushion Shaped Diver 200m Watch (New Arrival)

$58,000 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
 
Cartier Yellow Gold Tank Normale Bracelet Watch  Ref. 78092 (New Arrival)

Cartier Yellow Gold Tank Normale Bracelet Watch Ref. 78092 (New Arrival)

Cartier Yellow Gold Tank Normale Bracelet Watch Ref. 78092 (New Arrival)

$36,000 USD
 
Cartier - Cartier Yellow Gold Tank Reverso (New Arrival) - The Keystone Watches

Cartier Yellow Gold Tank Reverso (New Arrival)

Cartier Yellow Gold Tank Reverso (New Arrival)

$34,500 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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