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Patek Philippe - Patek Philippe Yellow Gold Celestial Ref. 5102 with Original Box and Papers - The Keystone Watches

Patek Philippe Yellow Gold Celestial Ref. 5102 with Original Box and Papers

Patek Philippe Yellow Gold Celestial Ref. 5102 with Original Box and Papers

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Patek Philippe - Patek Philippe Annual Calendar Chronograph Watch Ref. 5960, Retailed by Tiffany & Co. - The Keystone Watches

Patek Philippe Annual Calendar Chronograph Watch Ref. 5960, Retailed by Tiffany & Co.

Patek Philippe Annual Calendar Chronograph Watch Ref. 5960, Retailed by Tiffany & Co.

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Patek Philippe - Patek Philippe Yellow Gold Nautilus Watch Ref. 3700 - The Keystone Watches

Patek Philippe Yellow Gold Nautilus Watch Ref. 3700

Patek Philippe Yellow Gold Nautilus Watch Ref. 3700

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Patek Philippe - Patek Philippe White Gold Calatrava Watch Ref. 5196 - The Keystone Watches

Patek Philippe White Gold Calatrava Watch Ref. 5196

Patek Philippe White Gold Calatrava Watch Ref. 5196

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Patek Philippe - Patek Philippe White Gold Nautilus Perpetual Calendar Watch Ref. 5740 - The Keystone Watches

Patek Philippe White Gold Nautilus Perpetual Calendar Watch Ref. 5740

Patek Philippe White Gold Nautilus Perpetual Calendar Watch Ref. 5740

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Patek Philippe - Patek Philippe Nautilus Moonphase Calendar Ref. 5726 - The Keystone Watches

Patek Philippe Nautilus Moonphase Calendar Ref. 5726

Patek Philippe Nautilus Moonphase Calendar Ref. 5726

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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

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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

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

Patek Philippe Platinum Enamel Dial Minute Repeater Watch Ref. 5078

Patek Philippe Platinum Enamel Dial Minute Repeater Watch Ref. 5078

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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

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Patek Philippe - Patek Philippe Platinum Celestial Watch Ref. 6102 - The Keystone Watches

Patek Philippe Platinum Celestial Watch Ref. 6102

Patek Philippe Platinum Celestial Watch Ref. 6102

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Patek Philippe - Patek Philippe White Gold Annual Calendar Watch Ref. 5035 - The Keystone Watches

Patek Philippe White Gold Annual Calendar Watch Ref. 5035

Patek Philippe White Gold Annual Calendar Watch Ref. 5035

Sold Out

 
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

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Patek Philippe - Patek Philippe Aquanaut Rose Gold on Strap Ref. 5167 - The Keystone Watches

Patek Philippe Aquanaut Rose Gold on Strap Ref. 5167

Patek Philippe Aquanaut Rose Gold on Strap Ref. 5167

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Patek Philippe - Patek Philippe White Gold 10-Day Tourbillon Watch Ref. 5101 - The Keystone Watches

Patek Philippe White Gold 10-Day Tourbillon Watch Ref. 5101

Patek Philippe White Gold 10-Day Tourbillon Watch Ref. 5101

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Patek Philippe - Patek Philippe Yellow Aquanaut Jumbo Watch Ref. 5065 - The Keystone Watches

Patek Philippe Yellow Aquanaut Jumbo Watch Ref. 5065

Patek Philippe Yellow Aquanaut Jumbo Watch Ref. 5065

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Patek Philippe - Patek Philippe White Gold Calatrava Watch Ref. 5227 - The Keystone Watches

Patek Philippe White Gold Calatrava Watch Ref. 5227

Patek Philippe White Gold Calatrava Watch Ref. 5227

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Patek Philippe - Patek Philippe White Gold Gondolo 8-Days Power Reserve Watch Ref. 5200 in Like-New Condition - The Keystone Watches

Patek Philippe White Gold Gondolo 8-Days Power Reserve Watch Ref. 5200 in Like-New Condition

Patek Philippe White Gold Gondolo 8-Days Power Reserve Watch Ref. 5200 in Like-New Condition

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Patek Philippe - Patek Philippe Nautilus Moonphase Watch Ref. 5726 - The Keystone Watches

Patek Philippe Nautilus Moonphase Watch Ref. 5726

Patek Philippe Nautilus Moonphase Watch Ref. 5726

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Patek Philippe - Patek Philippe Annual Calendar Moonphase Watch Ref. 5135 Retailed by Tiffany & Co. - The Keystone Watches

Patek Philippe Annual Calendar Moonphase Watch Ref. 5135 Retailed by Tiffany & Co.

Patek Philippe Annual Calendar Moonphase Watch Ref. 5135 Retailed by Tiffany & Co.

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Patek Philippe - Patek Philippe White Gold Watch Ref. 570 with Archive Papers - The Keystone Watches

Patek Philippe White Gold Watch Ref. 570 with Archive Papers

Patek Philippe White Gold Watch Ref. 570 with Archive Papers

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Patek Philippe - Patek Philippe White Gold World Time Watch Ref. 5230 - The Keystone Watches

Patek Philippe White Gold World Time Watch Ref. 5230

Patek Philippe White Gold World Time Watch Ref. 5230

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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 Rose Gold Calatrava Enamel Dial Watch Ref. 5115 - The Keystone Watches

Patek Philippe Rose Gold Calatrava Enamel Dial Watch Ref. 5115

Patek Philippe Rose Gold Calatrava Enamel Dial Watch Ref. 5115

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Patek Philippe - Patek Philippe Nautilus Jumbo Watch Ref. 3700 with Original Warranty - The Keystone Watches

Patek Philippe Nautilus Jumbo Watch Ref. 3700 with Original Warranty

Patek Philippe Nautilus Jumbo Watch Ref. 3700 with Original Warranty

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

Patek Philippe Platinum Perpetual Ruby Chronograph Watch Ref. 5271

Patek Philippe Platinum Perpetual Ruby Chronograph Watch Ref. 5271

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

Patek Philippe Platinum Enamel Dial Minute Repeater Watch Ref. 5078

Patek Philippe Platinum Enamel Dial Minute Repeater Watch Ref. 5078

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Patek Philippe - Patek Philippe Rose Gold Chronograph Ref. 5170 - The Keystone Watches

Patek Philippe Rose Gold Chronograph Ref. 5170

Patek Philippe Rose Gold Chronograph Ref. 5170

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Patek Philippe - Patek Philippe Steel Tonneau Waterproof Watch Ref. 3579 - The Keystone Watches

Patek Philippe Steel Tonneau Waterproof Watch Ref. 3579

Patek Philippe Steel Tonneau Waterproof Watch Ref. 3579

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Patek Philippe - Patek Philiipe White Gold Perpetual Calendar Watch Ref. 5140 - The Keystone Watches

Patek Philiipe White Gold Perpetual Calendar Watch Ref. 5140

Patek Philiipe White Gold Perpetual Calendar Watch Ref. 5140

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Patek Philippe - Patek Philippe White Gold Chronograph Watch Ref. 5070 - The Keystone Watches

Patek Philippe White Gold Chronograph Watch Ref. 5070

Patek Philippe White Gold Chronograph Watch Ref. 5070

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Patek Philippe - Patek Philippe Yellow Gold Pagoda Commemoration 1997 Watch Ref. 5500 - The Keystone Watches

Patek Philippe Yellow Gold Pagoda Commemoration 1997 Watch Ref. 5500

Patek Philippe Yellow Gold Pagoda Commemoration 1997 Watch Ref. 5500

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Patek Philippe - Patek Philippe Yellow Gold Automatic Calatrava Watch Ref. 3439 - The Keystone Watches

Patek Philippe Yellow Gold Automatic Calatrava Watch Ref. 3439

Patek Philippe Yellow Gold Automatic Calatrava Watch Ref. 3439

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

Patek Philippe Yellow Gold Nautilus Watch Ref. 3800

Patek Philippe Yellow Gold Nautilus Watch Ref. 3800

Sold Out

 
Patek Philippe - Patek Philippe Platinum Perpetual Calendar Retrograde Watch Ref. 5496 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Retrograde Watch Ref. 5496

Patek Philippe Platinum Perpetual Calendar Retrograde Watch Ref. 5496

Sold Out

 
Patek Philippe - Patek Philippe Steel Automatic Watch Ref. 3580 - The Keystone Watches

Patek Philippe Steel Automatic Watch Ref. 3580

Patek Philippe Steel Automatic Watch Ref. 3580

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New Arrivals Preview
 
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
 
Rolex Steel Milgauss Ref. 1019 (New Arrival)

Rolex Steel Milgauss Ref. 1019 (New Arrival)

Rolex Steel Milgauss Ref. 1019 (New Arrival)

$23,500 USD
 
Vacheron Constantin Rose Gold Watch with Pink Dial (New Arrival)

Vacheron Constantin Rose Gold Watch with Pink Dial (New Arrival)

Vacheron Constantin Rose Gold Watch with Pink Dial (New Arrival)

$8,000 USD
 
Patek Philippe Yellow Gold Nautilus Watch Ref. 3800 (New Arrival)

Patek Philippe Yellow Gold Nautilus Watch Ref. 3800 (New Arrival)

Patek Philippe Yellow Gold Nautilus Watch Ref. 3800 (New Arrival)

$78,000 USD
 
Patek Philippe Yellow Gold Pocket Watch Ref 770 Retailed by Gubelin (New Arrival)

Patek Philippe Yellow Gold Pocket Watch Ref 770 Retailed by Gubelin (New Arrival)

Patek Philippe Yellow Gold Pocket Watch Ref 770 Retailed by Gubelin (New Arrival)

$7,800 USD
 
Boucheron Yellow Gold Invisible Set Sapphire Watch (New Arrival)

Boucheron Yellow Gold Invisible Set Sapphire Watch (New Arrival)

Boucheron Yellow Gold Invisible Set Sapphire Watch (New Arrival)

$9,500 USD
 
Patek Philippe Platinum Nautilus Watch Ref. 3800 with Original Box and Papers (New Arrival)

Patek Philippe Platinum Nautilus Watch Ref. 3800 with Original Box and Papers (New Arrival)

Patek Philippe Platinum Nautilus Watch Ref. 3800 with Original Box and Papers (New Arrival)

$165,000 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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