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Patek Philippe - Patek Philippe Platinum Minute Repeater Enamel Dial Watch Ref. 5078 - The Keystone Watches

Patek Philippe Platinum Minute Repeater Enamel Dial Watch Ref. 5078

Patek Philippe Platinum Minute Repeater Enamel Dial Watch Ref. 5078

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Patek Philippe - Patek Philippe Platinum Minute Repeater Perpetual Calendar Watch Ref. 5216 - The Keystone Watches

Patek Philippe Platinum Minute Repeater Perpetual Calendar Watch Ref. 5216

Patek Philippe Platinum Minute Repeater Perpetual Calendar Watch Ref. 5216

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Patek Philippe Platinum Minute Repeater Perpetual Calendar Watch Ref. 5216

Patek Philippe Platinum Minute Repeater Perpetual Calendar Watch Ref. 5216

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Patek Philippe - Patek Philippe Platinum Minute Repeater Ref. 3979 - The Keystone Watches

Patek Philippe Platinum Minute Repeater Ref. 3979

Patek Philippe Platinum Minute Repeater Ref. 3979

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Patek Philippe - Patek Philippe Platinum Minute Repeater Tourbillon Watch Ref. 3939 - The Keystone Watches

Patek Philippe Platinum Minute Repeater Tourbillon Watch Ref. 3939

Patek Philippe Platinum Minute Repeater Tourbillon Watch Ref. 3939

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Patek Philippe - Patek Philippe Platinum Minute Repeater Watch Ref. 5033 - The Keystone Watches

Patek Philippe Platinum Minute Repeater Watch Ref. 5033

Patek Philippe Platinum Minute Repeater Watch Ref. 5033

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Patek Philippe - Patek Philippe Platinum Minute Repeater Watch Ref. 5078 - The Keystone Watches

Patek Philippe Platinum Minute Repeater Watch Ref. 5078

Patek Philippe Platinum Minute Repeater Watch Ref. 5078

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Patek Philippe - Patek Philippe Platinum Minute Repeater Watch Ref. 5078 - The Keystone Watches

Patek Philippe Platinum Minute Repeater Watch Ref. 5078

Patek Philippe Platinum Minute Repeater Watch Ref. 5078

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Patek Philippe - Patek Philippe Platinum Minute Repeater Watch Ref. 5078 - The Keystone Watches

Patek Philippe Platinum Minute Repeater Watch Ref. 5078

Patek Philippe Platinum Minute Repeater Watch Ref. 5078

Sold Out

 
Patek Philippe - Patek Philippe Platinum Minute Repeater Watch Ref. 5078 - The Keystone Watches

Patek Philippe Platinum Minute Repeater Watch Ref. 5078

Patek Philippe Platinum Minute Repeater Watch Ref. 5078

Sold Out

 

Patek Philippe Platinum Minute Repeater Watch Ref. 5078

Patek Philippe Platinum Minute Repeater Watch Ref. 5078

Sold Out

 
Patek Philippe - Patek Philippe Platinum Minute Repeating Tourbillon Watch Ref. 3939 - The Keystone Watches

Patek Philippe Platinum Minute Repeating Tourbillon Watch Ref. 3939

Patek Philippe Platinum Minute Repeating Tourbillon Watch Ref. 3939

Sold Out

 
Patek Philippe - Patek Philippe Platinum Minute Repeating Tourbillon Watch Ref. 3939 - The Keystone Watches

Patek Philippe Platinum Minute Repeating Tourbillon Watch Ref. 3939

Patek Philippe Platinum Minute Repeating Tourbillon Watch Ref. 3939

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Patek Philippe - Patek Philippe Platinum Minute Repeating Tourbillon Watch Ref. 5016 - The Keystone Watches

Patek Philippe Platinum Minute Repeating Tourbillon Watch Ref. 5016

Patek Philippe Platinum Minute Repeating Tourbillon Watch Ref. 5016

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Patek Philippe - Patek Philippe Platinum Minute Repeating Tourbillon Watch Ref. 5016 - The Keystone Watches

Patek Philippe Platinum Minute Repeating Tourbillon Watch Ref. 5016

Patek Philippe Platinum Minute Repeating Tourbillon Watch Ref. 5016

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Patek Philippe - Patek Philippe Platinum Minute Repeating Tourbillon Watch Ref. 5016 - The Keystone Watches

Patek Philippe Platinum Minute Repeating Tourbillon Watch Ref. 5016

Patek Philippe Platinum Minute Repeating Tourbillon Watch Ref. 5016

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Patek Philippe - Patek Philippe Platinum Monopusher Split Seconds Chrono Ref. 5959 - The Keystone Watches

Patek Philippe Platinum Monopusher Split Seconds Chrono Ref. 5959

Patek Philippe Platinum Monopusher Split Seconds Chrono Ref. 5959

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Patek Philippe - Patek Philippe Platinum Monopusher Split Seconds Chrono Ref. 5959 - The Keystone Watches

Patek Philippe Platinum Monopusher Split Seconds Chrono Ref. 5959

Patek Philippe Platinum Monopusher Split Seconds Chrono Ref. 5959

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Patek Philippe - Patek Philippe Platinum Monopusher Split Seconds Chrono Ref. 5959, Double Sealed and Unworn - The Keystone Watches

Patek Philippe Platinum Monopusher Split Seconds Chrono Ref. 5959, Double Sealed and Unworn

Patek Philippe Platinum Monopusher Split Seconds Chrono Ref. 5959, Double Sealed and Unworn

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Patek Philippe - Patek Philippe Platinum Nautilus Watch Ref. 3800 - The Keystone Watches

Patek Philippe Platinum Nautilus Watch Ref. 3800

Patek Philippe Platinum Nautilus Watch Ref. 3800

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Patek Philippe Platinum Nautilus Watch Ref. 3800 with Original Box and Papers

Patek Philippe Platinum Nautilus Watch Ref. 3800 with Original Box and Papers

Patek Philippe Platinum Nautilus Watch Ref. 3800 with Original Box and Papers

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Patek Philippe - Patek Philippe Platinum Nautilus Watch Ref. 3800 with Original Warranty - The Keystone Watches

Patek Philippe Platinum Nautilus Watch Ref. 3800 with Original Warranty

Patek Philippe Platinum Nautilus Watch Ref. 3800 with Original Warranty

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Patek Philippe - Patek Philippe Platinum Nautilus Watch Ref. 5711 - The Keystone Watches

Patek Philippe Platinum Nautilus Watch Ref. 5711

Patek Philippe Platinum Nautilus Watch Ref. 5711

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Patek Philippe - Patek Philippe Platinum Nautilus with Baguette Ruby Bezel Ref. 5711 - The Keystone Watches

Patek Philippe Platinum Nautilus with Baguette Ruby Bezel Ref. 5711

Patek Philippe Platinum Nautilus with Baguette Ruby Bezel Ref. 5711

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Patek Philippe - Patek Philippe Platinum Perpetual Baguette Diamond Watch Ref. 5271 - The Keystone Watches

Patek Philippe Platinum Perpetual Baguette Diamond Watch Ref. 5271

Patek Philippe Platinum Perpetual Baguette Diamond Watch Ref. 5271

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Advanced Research Watch Ref. 5550 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Advanced Research Watch Ref. 5550

Patek Philippe Platinum Perpetual Calendar Advanced Research Watch Ref. 5550

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Advanced Research Watch Ref. 5550 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Advanced Research Watch Ref. 5550

Patek Philippe Platinum Perpetual Calendar Advanced Research Watch Ref. 5550

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Chrono Baguette Diamond Watch Ref. 5271 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Chrono Baguette Diamond Watch Ref. 5271

Patek Philippe Platinum Perpetual Calendar Chrono Baguette Diamond Watch Ref. 5271

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Chrono Baguette Diamond Watch Ref. 5971 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Chrono Baguette Diamond Watch Ref. 5971

Patek Philippe Platinum Perpetual Calendar Chrono Baguette Diamond Watch Ref. 5971

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Chrono Baguette Diamond Watch Ref. 5971 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Chrono Baguette Diamond Watch Ref. 5971

Patek Philippe Platinum Perpetual Calendar Chrono Baguette Diamond Watch Ref. 5971

Sold Out

 
Patek Philippe - Patek Philippe Platinum Perpetual Calendar Chrono Ruby Watch Ref. 5271 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Chrono Ruby Watch Ref. 5271

Patek Philippe Platinum Perpetual Calendar Chrono Ruby Watch Ref. 5271

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Chrono Sapphire Watch Ref. 5271 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Chrono Sapphire Watch Ref. 5271

Patek Philippe Platinum Perpetual Calendar Chrono Sapphire Watch Ref. 5271

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Chrono Sapphire Watch Ref. 5271 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Chrono Sapphire Watch Ref. 5271

Patek Philippe Platinum Perpetual Calendar Chrono Sapphire Watch Ref. 5271

Sold Out

 
Patek Philippe - Patek Philippe Platinum Perpetual Calendar Chrono Sapphire Watch Ref. 5271 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Chrono Sapphire Watch Ref. 5271

Patek Philippe Platinum Perpetual Calendar Chrono Sapphire Watch Ref. 5271

Sold Out

 
Patek Philippe - Patek Philippe Platinum Perpetual Calendar Chrono Watch Ref. 3970 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Chrono Watch Ref. 3970

Patek Philippe Platinum Perpetual Calendar Chrono Watch Ref. 3970

Sold Out

 
Patek Philippe - Patek Philippe Platinum Perpetual Calendar Chrono Watch Ref. 3970 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Chrono Watch Ref. 3970

Patek Philippe Platinum Perpetual Calendar Chrono Watch Ref. 3970

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New Arrivals Preview
 
Patek Philippe 565 Retailed by Hausmann & Co. (New Arrival)

Patek Philippe 565 Retailed by Hausmann & Co. (New Arrival)

Patek Philippe 565 Retailed by Hausmann & Co. (New Arrival)

$105,000 USD
 
Cartier Yellow Gold Tonneau Watch, Paris 1991 (New Arrival)

Cartier Yellow Gold Tonneau Watch, Paris 1991 (New Arrival)

Cartier Yellow Gold Tonneau Watch, Paris 1991 (New Arrival)

$11,500 USD
 
Audemars Piguet White Gold Diamond & Sapphire Watch Ref. 14781 with Original Warranty (New Arrival)

Audemars Piguet White Gold Diamond & Sapphire Watch Ref. 14781 with Original Warranty (New Arrival)

Audemars Piguet White Gold Diamond & Sapphire Watch Ref. 14781 with Original Warranty (New Arrival)

$58,000 USD
 
Rolex - Rolex Yellow Gold Cellini Watch Ref. 4934/8 with Logo Bracelet (New Arrival) - The Keystone Watches

Rolex Yellow Gold Cellini Watch Ref. 4934/8 with Logo Bracelet (New Arrival)

Rolex Yellow Gold Cellini Watch Ref. 4934/8 with Logo Bracelet (New Arrival)

$15,500 USD
 
Rolex White Gold Cellini Ref. 4083 (New Arrival)

Rolex White Gold Cellini Ref. 4083 (New Arrival)

Rolex White Gold Cellini Ref. 4083 (New Arrival)

$4,500 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
 
Patek Philippe White Gold Calatrava Watch Ref. 3445 in Top Condition (New Arrival)

Patek Philippe White Gold Calatrava Watch Ref. 3445 in Top Condition (New Arrival)

Patek Philippe White Gold Calatrava Watch Ref. 3445 in Top Condition (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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