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Richard Mille - Richard Mille Skeleton Rafael Nadal Ref. RM35-02 - The Keystone Watches

Richard Mille Skeleton Rafael Nadal Ref. RM35-02

Richard Mille Skeleton Rafael Nadal Ref. RM35-02

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Rolex - Rolex White Gold Submariner Diamond Sapphire Watch Ref. 116659 - The Keystone Watches

Rolex White Gold Submariner Diamond Sapphire Watch Ref. 116659

Rolex White Gold Submariner Diamond Sapphire Watch Ref. 116659

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Audemars Piguet - Audemars Piguet Tantalum Royal Oak Championship Watch - The Keystone Watches

Audemars Piguet Tantalum Royal Oak Championship Watch

Audemars Piguet Tantalum Royal Oak Championship Watch

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Patek Philippe - Patek Philippe Perpetual Calendar Automatic Watch Ref. 3940 - The Keystone Watches

Patek Philippe Perpetual Calendar Automatic Watch Ref. 3940

Patek Philippe Perpetual Calendar Automatic Watch Ref. 3940

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Patek Philippe - Patek Philippe Rose Gold Minute Repeater Tourbillon Ref. 5339R - The Keystone Watches

Patek Philippe Rose Gold Minute Repeater Tourbillon Ref. 5339R

Patek Philippe Rose Gold Minute Repeater Tourbillon Ref. 5339R

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

Patek Philippe Rose Gold Perpetual Calendar Chronograph Watch Ref. 5970

Patek Philippe Rose Gold Perpetual Calendar Chronograph Watch Ref. 5970

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

Patek Philippe White Gold Perpetual Calendar Chronograph Ref. 5970

Patek Philippe White Gold Perpetual Calendar Chronograph Ref. 5970

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

Patek Philippe Yellow Gold Perpetual Calendar Chronograph Watch Ref. 5970

Patek Philippe Yellow Gold Perpetual Calendar Chronograph Watch Ref. 5970

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Vacheron Constantin - Vacheron Constantin White Gold Automatic Power Reserve Watch Ref. 47201 - The Keystone Watches

Vacheron Constantin White Gold Automatic Power Reserve Watch Ref. 47201

Vacheron Constantin White Gold Automatic Power Reserve Watch Ref. 47201

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Audemars Piguet - Audemars Piguet Yellow Gold Royal Oak Automatic Watch Ref. 14790 - The Keystone Watches

Audemars Piguet Yellow Gold Royal Oak Automatic Watch Ref. 14790

Audemars Piguet Yellow Gold Royal Oak Automatic Watch Ref. 14790

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Rolex - Rolex GMT-Master II Ceramic Pepsi Watch Ref. 126710 - The Keystone Watches

Rolex GMT-Master II Ceramic Pepsi Watch Ref. 126710

Rolex GMT-Master II Ceramic Pepsi Watch Ref. 126710

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Patek Philippe - Patek Philippe White Gold Calatrava Automatic Watch Ref. 5000 - The Keystone Watches

Patek Philippe White Gold Calatrava Automatic Watch Ref. 5000

Patek Philippe White Gold Calatrava Automatic Watch Ref. 5000

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Patek Philippe - Patek Philippe Pilot Calatrava Limited New York Edition Watch Ref. 5522 - The Keystone Watches

Patek Philippe Pilot Calatrava Limited New York Edition Watch Ref. 5522

Patek Philippe Pilot Calatrava Limited New York Edition Watch Ref. 5522

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Patek Philippe - Patek Philippe Perpetual Calendar Yellow Gold Ref. 5039J - The Keystone Watches

Patek Philippe Perpetual Calendar Yellow Gold Ref. 5039J

Patek Philippe Perpetual Calendar Yellow Gold Ref. 5039J

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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 Perpetual Split Seconds Chrono Watch Ref. 5204 - The Keystone Watches

Patek Philippe Platinum Perpetual Split Seconds Chrono Watch Ref. 5204

Patek Philippe Platinum Perpetual Split Seconds Chrono Watch Ref. 5204

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Rolex - Rolex Yellow Gold Date Watch Ref. 1503 - The Keystone Watches

Rolex Yellow Gold Date Watch Ref. 1503

Rolex Yellow Gold Date Watch Ref. 1503

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Cartier - Cartier White Gold Ballon Bleu Tourbillon Watch - The Keystone Watches

Cartier White Gold Ballon Bleu Tourbillon Watch

Cartier White Gold Ballon Bleu Tourbillon Watch

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Rolex - Rolex Steel Submariner Watch Ref. 1680 - The Keystone Watches

Rolex Steel Submariner Watch Ref. 1680

Rolex Steel Submariner Watch Ref. 1680

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Patek Philippe - Patek Philippe White Gold Automatic Oval Bracelet Watch Ref. 3589 - The Keystone Watches

Patek Philippe White Gold Automatic Oval Bracelet Watch Ref. 3589

Patek Philippe White Gold Automatic Oval Bracelet Watch Ref. 3589

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Audemars Piguet - Audemars Piguet Royal Oak Brown Dial A-Series Watch Ref. 5402 - The Keystone Watches

Audemars Piguet Royal Oak Brown Dial A-Series Watch Ref. 5402

Audemars Piguet Royal Oak Brown Dial A-Series Watch Ref. 5402

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Ulysse Nardin - Ulysse Nardin White Gold San Marco Cloisonne Dial Watch - The Keystone Watches

Ulysse Nardin White Gold San Marco Cloisonne Dial Watch

Ulysse Nardin White Gold San Marco Cloisonne Dial Watch

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Patek Philippe - Patek Philippe Aquanaut Automatic Watch Ref. 5060, First Series Aquanaut - The Keystone Watches

Patek Philippe Aquanaut Automatic Watch Ref. 5060, First Series Aquanaut

Patek Philippe Aquanaut Automatic Watch Ref. 5060, First Series Aquanaut

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Audemars Piguet - Audemars Piguet Royal Oak Beta 21 Watch Ref. 6001, 1970s - The Keystone Watches

Audemars Piguet Royal Oak Beta 21 Watch Ref. 6001, 1970s

Audemars Piguet Royal Oak Beta 21 Watch Ref. 6001, 1970s

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Patek Philippe - Patek Philippe White Gold Perpetual Calendar Chronograph Watch Ref. 5270, in Unworn Condition - The Keystone Watches

Patek Philippe White Gold Perpetual Calendar Chronograph Watch Ref. 5270, in Unworn Condition

Patek Philippe White Gold Perpetual Calendar Chronograph Watch Ref. 5270, in Unworn Condition

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

Patek Philippe Platinum Minute Repeater Black Dial Watch Ref. 5078

Patek Philippe Platinum Minute Repeater Black Dial Watch Ref. 5078

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Audemars Piguet - Audemars Piguet Royal Oak Rare Early Blue Automatic Watch, Ref 15202 - The Keystone Watches

Audemars Piguet Royal Oak Rare Early Blue Automatic Watch, Ref 15202

Audemars Piguet Royal Oak Rare Early Blue Automatic Watch, Ref 15202

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Patek Philippe - Patek Philippe White Gold Perpetual Calendar Retrograde Watch Ref. 5159 - The Keystone Watches

Patek Philippe White Gold Perpetual Calendar Retrograde Watch Ref. 5159

Patek Philippe White Gold Perpetual Calendar Retrograde Watch Ref. 5159

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Patek Philippe - Patek Philippe Yellow Gold Minute Repeater, Ref. 5079J - The Keystone Watches

Patek Philippe Yellow Gold Minute Repeater, Ref. 5079J

Patek Philippe Yellow Gold Minute Repeater, Ref. 5079J

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Audemars Piguet - Audemars Piguet Yellow Gold Royal Oak Moonphase Watch - The Keystone Watches

Audemars Piguet Yellow Gold Royal Oak Moonphase Watch

Audemars Piguet Yellow Gold Royal Oak Moonphase Watch

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Daniel Roth - Daniel Roth Rose Gold Metropolitan World Time Watch - The Keystone Watches

Daniel Roth Rose Gold Metropolitan World Time Watch

Daniel Roth Rose Gold Metropolitan World Time Watch

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Minute Repeater Watch Ref. 5013 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Minute Repeater Watch Ref. 5013

Patek Philippe Platinum Perpetual Calendar Minute Repeater Watch Ref. 5013

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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 White Gold Celestial Watch Ref. 5102, Unworn - The Keystone Watches

Patek Philippe White Gold Celestial Watch Ref. 5102, Unworn

Patek Philippe White Gold Celestial Watch Ref. 5102, Unworn

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Patek Philippe - Patek Philippe White Gold Perpetual Calendar Ref. 5041 - The Keystone Watches

Patek Philippe White Gold Perpetual Calendar Ref. 5041

Patek Philippe White Gold Perpetual Calendar Ref. 5041

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Daniel Roth - Daniel Roth Tourbillon, Retrograde Skeleton, Chronograph, Three Watch Set - The Keystone Watches

Daniel Roth Tourbillon, Retrograde Skeleton, Chronograph, Three Watch Set

Daniel Roth Tourbillon, Retrograde Skeleton, Chronograph, Three Watch Set

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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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