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Audemars Piguet - Audemars Piguet White Gold Royal Oak Watch, Ref. 56175 - The Keystone Watches

Audemars Piguet White Gold Royal Oak Watch, Ref. 56175

Audemars Piguet White Gold Royal Oak Watch, Ref. 56175

Sold Out

 
IWC - IWC Aquatimer Chronograph Watch Ref. IW376802 - The Keystone Watches

IWC Aquatimer Chronograph Watch Ref. IW376802

IWC Aquatimer Chronograph Watch Ref. IW376802

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IWC - IWC Mark XVII Le Petit Prince Edition Watch - The Keystone Watches

IWC Mark XVII Le Petit Prince Edition Watch

IWC Mark XVII Le Petit Prince Edition Watch

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Patek Philippe - Patek Philippe Yellow Gold Ellipse Automatic Watch Ref. 3738 - The Keystone Watches

Patek Philippe Yellow Gold Ellipse Automatic Watch Ref. 3738

Patek Philippe Yellow Gold Ellipse Automatic Watch Ref. 3738

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Rolex - Rolex Yellow Gold Day-Date Black Dial Ref. 1803 - The Keystone Watches

Rolex Yellow Gold Day-Date Black Dial Ref. 1803

Rolex Yellow Gold Day-Date Black Dial Ref. 1803

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Patek Philippe - Patek Philippe Platinum Chronograph Diamond Watch Ref. 5170 - The Keystone Watches

Patek Philippe Platinum Chronograph Diamond Watch Ref. 5170

Patek Philippe Platinum Chronograph Diamond Watch Ref. 5170

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Patek Philippe - Patek Philippe Rose Gold Perpetual Calendar Split Watch Ref. 5004 - The Keystone Watches

Patek Philippe Rose Gold Perpetual Calendar Split Watch Ref. 5004

Patek Philippe Rose Gold Perpetual Calendar Split Watch Ref. 5004

Sold Out

 
A. Lange & Sohne - A. Lange & Sohne Yellow Gold Saxonia 1st Series Watch Ref. 102.002 - The Keystone Watches

A. Lange & Sohne Yellow Gold Saxonia 1st Series Watch Ref. 102.002

A. Lange & Sohne Yellow Gold Saxonia 1st Series Watch Ref. 102.002

Sold Out

 
Vacheron Constantin - Vacheron Constantin Rose Gold Skeletonized Tourbillon Watch - The Keystone Watches

Vacheron Constantin Rose Gold Skeletonized Tourbillon Watch

Vacheron Constantin Rose Gold Skeletonized Tourbillon Watch

Sold Out

 
Richard Mille - Richard Mille Extra Flat Automatic Skeleton Mutaz Watch Ref. RM67-02 - The Keystone Watches

Richard Mille Extra Flat Automatic Skeleton Mutaz Watch Ref. RM67-02

Richard Mille Extra Flat Automatic Skeleton Mutaz Watch Ref. RM67-02

Sold Out

 
FP Journe - F.P. Journe Platinum Remontoir dEgalite Tourbillon Watch - The Keystone Watches

F.P. Journe Platinum Remontoir dEgalite Tourbillon Watch

F.P. Journe Platinum Remontoir dEgalite Tourbillon Watch

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Patek Philippe - Patek Philippe Rose Gold Aquanaut Diamond Watch Ref. 5167/300R - The Keystone Watches

Patek Philippe Rose Gold Aquanaut Diamond Watch Ref. 5167/300R

Patek Philippe Rose Gold Aquanaut Diamond Watch Ref. 5167/300R

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Patek Philippe - Patek Philippe Yellow Gold Nautilus Diamond Watch Ref. 3800 - The Keystone Watches

Patek Philippe Yellow Gold Nautilus Diamond Watch Ref. 3800

Patek Philippe Yellow Gold Nautilus Diamond Watch Ref. 3800

Sold Out

 
Audemars Piguet - Audemars Piguet Steel Royal Oak Watch Ref. 14790 - The Keystone Watches

Audemars Piguet Steel Royal Oak Watch Ref. 14790

Audemars Piguet Steel Royal Oak Watch Ref. 14790

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Audemars Piguet - Audemars Piguet Royal Oak Stainless Steel - The Keystone Watches

Audemars Piguet Royal Oak Stainless Steel

Audemars Piguet Royal Oak Stainless Steel

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Roger Dubuis - Roger Dubuis Rose Gold Hommage Perpetual Retrograde Watch - The Keystone Watches

Roger Dubuis Rose Gold Hommage Perpetual Retrograde Watch

Roger Dubuis Rose Gold Hommage Perpetual Retrograde Watch

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Panerai - Panerai Luminor Submersible Early Tritium Dial Watch Ref. PAM106 - The Keystone Watches

Panerai Luminor Submersible Early Tritium Dial Watch Ref. PAM106

Panerai Luminor Submersible Early Tritium Dial Watch Ref. PAM106

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Patek Philippe - Patek Philippe Yellow Gold Ref. 425, with U.S.A. Boxing Provenance - The Keystone Watches

Patek Philippe Yellow Gold Ref. 425, with U.S.A. Boxing Provenance

Patek Philippe Yellow Gold Ref. 425, with U.S.A. Boxing Provenance

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Cartier - Cartier Yellow Gold Tank Bec dAigle Watch - The Keystone Watches

Cartier Yellow Gold Tank Bec dAigle Watch

Cartier Yellow Gold Tank Bec dAigle Watch

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Cartier - Cartier Yellow Gold Tank Diamond Watch - The Keystone Watches

Cartier Yellow Gold Tank Diamond Watch

Cartier Yellow Gold Tank Diamond Watch

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

Audemars Piguet Yellow Gold Royal Oak Moonphase Day Date Watch

Audemars Piguet Yellow Gold Royal Oak Moonphase Day Date Watch

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Audemars Piguet - Audemars Piguet Platinum Anniversary Edition Ultra-Thin Strap Watch - The Keystone Watches

Audemars Piguet Platinum Anniversary Edition Ultra-Thin Strap Watch

Audemars Piguet Platinum Anniversary Edition Ultra-Thin Strap Watch

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Audemars Piguet Platinum Extra-Plat Ultra-Thin Watch

Audemars Piguet Platinum Extra-Plat Ultra-Thin Watch

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Patek Philippe - Patek Philippe White Gold Perpetual Calendar Watch Ref. 5320 - The Keystone Watches

Patek Philippe White Gold Perpetual Calendar Watch Ref. 5320

Patek Philippe White Gold Perpetual Calendar Watch Ref. 5320

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Hublot - Hublot Classic Fusion Tourbillon Rose Gold - The Keystone Watches

Hublot Classic Fusion Tourbillon Rose Gold

Hublot Classic Fusion Tourbillon Rose Gold

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Audemars Piguet - Audemars Piguet Royal Oak Offshore Diver Watch Ref. 15710 - The Keystone Watches

Audemars Piguet Royal Oak Offshore Diver Watch Ref. 15710

Audemars Piguet Royal Oak Offshore Diver Watch Ref. 15710

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Patek Philippe - Patek Philippe White Gold Annual Calendar Blue Watch Ref. 5205 - The Keystone Watches

Patek Philippe White Gold Annual Calendar Blue Watch Ref. 5205

Patek Philippe White Gold Annual Calendar Blue Watch Ref. 5205

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Audemars Piguet - Audemars Piguet Yellow Gold Royal Oak Triangle-Cut Diamond Watch - The Keystone Watches

Audemars Piguet Yellow Gold Royal Oak Triangle-Cut Diamond Watch

Audemars Piguet Yellow Gold Royal Oak Triangle-Cut Diamond Watch

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Cartier - Cartier Platinum Tank Cintree Skeletonized Watch - The Keystone Watches

Cartier Platinum Tank Cintree Skeletonized Watch

Cartier Platinum Tank Cintree Skeletonized Watch

Sold Out

 
A. Lange & Sohne - A. Lange & Sohne Rose Gold 1815 Tourbillon Watch Ref. 730.032 - The Keystone Watches

A. Lange & Sohne Rose Gold 1815 Tourbillon Watch Ref. 730.032

A. Lange & Sohne Rose Gold 1815 Tourbillon Watch Ref. 730.032

Sold Out

 
A. Lange & Sohne - A Lange & Sohne 1815 Chronograph White Gold - The Keystone Watches

A Lange & Sohne 1815 Chronograph White Gold

A Lange & Sohne 1815 Chronograph White Gold

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Audemars Piguet - Audemars Piguet Rose Gold Royal Oak Perpetual Watch Ref. 26574 - The Keystone Watches

Audemars Piguet Rose Gold Royal Oak Perpetual Watch Ref. 26574

Audemars Piguet Rose Gold Royal Oak Perpetual Watch Ref. 26574

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Audemars Piguet - Audemars Piguet Platinum Royal Oak Tourbillon Baguette Diamond Watch - The Keystone Watches

Audemars Piguet Platinum Royal Oak Tourbillon Baguette Diamond Watch

Audemars Piguet Platinum Royal Oak Tourbillon Baguette Diamond Watch

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Patek Philippe - Patek Philippe Rose Gold Nautilus Moonphase Watch Ref. 5712 - The Keystone Watches

Patek Philippe Rose Gold Nautilus Moonphase Watch Ref. 5712

Patek Philippe Rose Gold Nautilus Moonphase Watch Ref. 5712

Sold Out

 
Cartier - Cartier White Gold Tank XL Automatique Watch - The Keystone Watches

Cartier White Gold Tank XL Automatique Watch

Cartier White Gold Tank XL Automatique Watch

Sold Out

 
Rolex - Rolex Explorer II Orange Hand Straight Seconds Ref. 1655 - The Keystone Watches

Rolex Explorer II Orange Hand Straight Seconds Ref. 1655

Rolex Explorer II Orange Hand Straight Seconds Ref. 1655

Sold Out

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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)

"Price upon request"
 
Audemars Piguet Yellow Gold Coin Watch (New Arrival)

Audemars Piguet Yellow Gold Coin Watch (New Arrival)

Audemars Piguet Yellow Gold Coin Watch (New Arrival)

$9,500 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
 
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
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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