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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 White Gold Nautilus Moonphase Watch Ref. 5712 - The Keystone Watches

Patek Philippe White Gold Nautilus Moonphase Watch Ref. 5712

Patek Philippe White Gold Nautilus Moonphase Watch Ref. 5712

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Patek Philippe - Patek Philippe Nautilus Moonphase Calendar Ref. 5726, Retailed by Tiffany & Co. - The Keystone Watches

Patek Philippe Nautilus Moonphase Calendar Ref. 5726, Retailed by Tiffany & Co.

Patek Philippe Nautilus Moonphase Calendar Ref. 5726, Retailed by Tiffany & Co.

Sold Out

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

Patek Philippe Nautilus Automatic Watch Ref. 3800

Patek Philippe Nautilus Automatic Watch Ref. 3800

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Patek Philippe - Patek Philippe Two-Tone Nautilus Automatic Watch Ref. 3800 - The Keystone Watches

Patek Philippe Two-Tone Nautilus Automatic Watch Ref. 3800

Patek Philippe Two-Tone Nautilus Automatic Watch Ref. 3800

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

Patek Philippe Nautilus Automatic Watch Ref. 3800

Patek Philippe Nautilus Automatic Watch Ref. 3800

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Patek Philippe - Patek Philippe White Gold Nautilus Watch Ref. 5719 - The Keystone Watches

Patek Philippe White Gold Nautilus Watch Ref. 5719

Patek Philippe White Gold Nautilus Watch Ref. 5719

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

Patek Philippe White Gold Nautilus Diamond Watch Ref. 3800

Patek Philippe White Gold Nautilus Diamond Watch Ref. 3800

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

Patek Philippe Nautilus Jumbo Watch Ref. 5711

Patek Philippe Nautilus Jumbo Watch Ref. 5711

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Patek Philippe - Patek Philippe Nautilus Watch Ref. 3800, with Original Box and Papers - The Keystone Watches

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

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

Sold Out

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

Patek Philippe White Gold Perpetual Calendar Watch Ref. 5740

Patek Philippe White Gold Perpetual Calendar Watch Ref. 5740

Sold Out

 
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 Yellow Gold Nautilus Diamond Watch with Original Box and Papers - The Keystone Watches

Patek Philippe Yellow Gold Nautilus Diamond Watch with Original Box and Papers

Patek Philippe Yellow Gold Nautilus Diamond Watch with Original Box and Papers

Sold Out

 
Patek Philippe - Patek Philippe Rose Gold Nautilus Diamond Watch Ref. 5724, Retailed by Tiffany & Co. - The Keystone Watches

Patek Philippe Rose Gold Nautilus Diamond Watch Ref. 5724, Retailed by Tiffany & Co.

Patek Philippe Rose Gold Nautilus Diamond Watch Ref. 5724, Retailed by Tiffany & Co.

Sold Out

 
Patek Philippe - Patek Philippe Stainless Steel Nautilus ref 3800 - The Keystone Watches

Patek Philippe Stainless Steel Nautilus ref 3800

Patek Philippe Stainless Steel Nautilus ref 3800

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Patek Philippe - Patek Philippe Steel Nautilus Moonphase Watch Ref. 3712 with Original Box and Papers - The Keystone Watches

Patek Philippe Steel Nautilus Moonphase Watch Ref. 3712 with Original Box and Papers

Patek Philippe Steel Nautilus Moonphase Watch Ref. 3712 with Original Box and Papers

Sold Out

 
Patek Philippe - Patek Philippe Rose Gold Nautilus Watch Ref. 5711 - The Keystone Watches

Patek Philippe Rose Gold Nautilus Watch Ref. 5711

Patek Philippe Rose Gold Nautilus Watch Ref. 5711

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

Patek Phlippe Yellow Gold Nautilus Automatic Watch Ref. 3800

Patek Phlippe Yellow Gold Nautilus Automatic Watch Ref. 3800

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

Patek Philippe Yellow Gold, Emerald Nautilus Diamond Watch Ref. 3800

Patek Philippe Yellow Gold, Emerald Nautilus Diamond Watch Ref. 3800

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Patek Philippe - Patek Philippe Two-Tone Nautilus Ref. 3800 - The Keystone Watches

Patek Philippe Two-Tone Nautilus Ref. 3800

Patek Philippe Two-Tone Nautilus Ref. 3800

Sold Out

 
Patek Philippe - Patek Philippe Nautilus Blue Dial Watch Ref. 7118 - The Keystone Watches

Patek Philippe Nautilus Blue Dial Watch Ref. 7118

Patek Philippe Nautilus Blue Dial Watch Ref. 7118

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

Patek Philippe White Gold Nautilus Diamond Watch Ref. 3800

Patek Philippe White Gold Nautilus Diamond Watch Ref. 3800

Sold Out

 
Patek Philippe - Patek Philippe Steel Nautilus Watch Ref. 3800 with Original Box and Papers - The Keystone Watches

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

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

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

Patek Philippe Yellow Gold Nautilus Diamond Jumbo Watch Ref. 3700

Patek Philippe Yellow Gold Nautilus Diamond Jumbo Watch Ref. 3700

Sold Out

 
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 White Gold Nautilus Moonphase Watch Ref. 5712 - The Keystone Watches

Patek Philippe White Gold Nautilus Moonphase Watch Ref. 5712

Patek Philippe White Gold Nautilus Moonphase Watch Ref. 5712

Sold Out

 
Patek Philippe - Patek Philippe Nautlus Watch Ref. 3800 - The Keystone Watches

Patek Philippe Nautlus Watch Ref. 3800

Patek Philippe Nautlus Watch Ref. 3800

Sold Out

 
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

Sold Out

 
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 Yellow Gold Nautilus Watch Ref. 3900 - The Keystone Watches

Patek Philippe Yellow Gold Nautilus Watch Ref. 3900

Patek Philippe Yellow Gold Nautilus Watch Ref. 3900

Sold Out

 
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

 
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

 
Patek Philippe - Patek Philippe Steel Nautilus Watch Ref. 3900 - The Keystone Watches

Patek Philippe Steel Nautilus Watch Ref. 3900

Patek Philippe Steel Nautilus Watch Ref. 3900

Sold Out

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

Patek Philippe White Gold Nautilus Moonphase Watch Ref. 5712

Patek Philippe White Gold Nautilus Moonphase Watch Ref. 5712

Sold Out

 
Patek Philippe - Patek Philippe Nautilus Moonphase Watch Ref. 5726 in Double Sealed and Unworn Condition - The Keystone Watches

Patek Philippe Nautilus Moonphase Watch Ref. 5726 in Double Sealed and Unworn Condition

Patek Philippe Nautilus Moonphase Watch Ref. 5726 in Double Sealed and Unworn Condition

Sold Out

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

Patek Philippe Nautilus Watch Ref. 3800

Patek Philippe Nautilus Watch Ref. 3800

Sold Out

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New Arrivals Preview
 
Piaget Yellow Gold Polo Watch Ref. 7661C with Original Diamonds (New Arrival)

Piaget Yellow Gold Polo Watch Ref. 7661C with Original Diamonds (New Arrival)

Piaget Yellow Gold Polo Watch Ref. 7661C with Original Diamonds (New Arrival)

$22,000 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
 
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
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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