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

Patek Philippe Yellow Gold Calatrava Watch Ref. 5196

Patek Philippe Yellow Gold Calatrava Watch Ref. 5196

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Patek Philippe - Patek Philippe Platinum Annual Calendar Chronograph Watch Ref. 5960 - The Keystone Watches

Patek Philippe Platinum Annual Calendar Chronograph Watch Ref. 5960

Patek Philippe Platinum Annual Calendar Chronograph Watch Ref. 5960

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Patek Philippe - Patek Philippe White Gold Baguette Diamond Watch Ref. 3540 - The Keystone Watches

Patek Philippe White Gold Baguette Diamond Watch Ref. 3540

Patek Philippe White Gold Baguette Diamond Watch Ref. 3540

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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 Yellow Gold Perpetual Calendar Automatic Watch Ref. 5039 - The Keystone Watches

Patek Philippe Yellow Gold Perpetual Calendar Automatic Watch Ref. 5039

Patek Philippe Yellow Gold Perpetual Calendar Automatic Watch Ref. 5039

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

Patek Philippe Yellow Gold Jumbo Aquanaut Watch Ref. 5065

Patek Philippe Yellow Gold Jumbo Aquanaut Watch Ref. 5065

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Patek Philippe - Patek Philippe Yellow Gold Perpetual Calendar Chronograph Watch Ref. 2499 - The Keystone Watches

Patek Philippe Yellow Gold Perpetual Calendar Chronograph Watch Ref. 2499

Patek Philippe Yellow Gold Perpetual Calendar Chronograph Watch Ref. 2499

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Patek Philippe - Patek Philippe White Gold Diamond Watch Ref. 4201 - The Keystone Watches

Patek Philippe White Gold Diamond Watch Ref. 4201

Patek Philippe White Gold Diamond Watch Ref. 4201

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

Patek Philippe Steel Watch Ref. 3579

Patek Philippe Steel Watch Ref. 3579

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Patek Philippe - Patek Philippe White Gold Annual Calendar Watch Ref. 5146 - The Keystone Watches

Patek Philippe White Gold Annual Calendar Watch Ref. 5146

Patek Philippe White Gold Annual Calendar Watch Ref. 5146

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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 White Gold Calatrava Watch Ref. 3919 - The Keystone Watches

Patek Philippe White Gold Calatrava Watch Ref. 3919

Patek Philippe White Gold Calatrava Watch Ref. 3919

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Patek Philippe - Patek Philippe White Gold Diamond Bezel ladies Watch Ref. 3285/49 - The Keystone Watches

Patek Philippe White Gold Diamond Bezel ladies Watch Ref. 3285/49

Patek Philippe White Gold Diamond Bezel ladies Watch Ref. 3285/49

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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 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 Yellow Gold World Time Watch Ref. 5110, Made for Doha, Qatar - The Keystone Watches

Patek Philippe Yellow Gold World Time Watch Ref. 5110, Made for Doha, Qatar

Patek Philippe Yellow Gold World Time Watch Ref. 5110, Made for Doha, Qatar

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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 Yellow Gold Calatrava Automatic Watch Ref. 3998 - The Keystone Watches

Patek Philippe Yellow Gold Calatrava Automatic Watch Ref. 3998

Patek Philippe Yellow Gold Calatrava Automatic Watch Ref. 3998

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Patek Philippe - Patek Philippe White Gold Diamond Watch, Ref. 3366 - The Keystone Watches

Patek Philippe White Gold Diamond Watch, Ref. 3366

Patek Philippe White Gold Diamond Watch, Ref. 3366

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Patek Philippe - Patek Philippe Yellow Gold Perpetual Calendar Watch Ref. 3448 - The Keystone Watches

Patek Philippe Yellow Gold Perpetual Calendar Watch Ref. 3448

Patek Philippe Yellow Gold Perpetual Calendar Watch Ref. 3448

Sold Out

 
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 Automatic Calatrava Ref. 3514 - The Keystone Watches

Patek Philippe White Gold Automatic Calatrava Ref. 3514

Patek Philippe White Gold Automatic Calatrava Ref. 3514

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Patek Philippe - Patek Philippe Aquanaut Travel Time Watch Ref. 5164 - The Keystone Watches

Patek Philippe Aquanaut Travel Time Watch Ref. 5164

Patek Philippe Aquanaut Travel Time Watch Ref. 5164

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Retrograde Watch Ref. 5059 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Retrograde Watch Ref. 5059

Patek Philippe Platinum Perpetual Calendar Retrograde Watch Ref. 5059

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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 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 Yellow Gold Perpetual Calendar Pocket Watch - The Keystone Watches

Patek Philippe Yellow Gold Perpetual Calendar Pocket Watch

Patek Philippe Yellow Gold Perpetual Calendar Pocket Watch

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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 White Gold Perpetual Calendar Chronograph Watch Ref. 5270 - The Keystone Watches

Patek Philippe White Gold Perpetual Calendar Chronograph Watch Ref. 5270

Patek Philippe White Gold Perpetual Calendar Chronograph Watch Ref. 5270

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Patek Philippe - Patek Philippe White Gold World Time Watch Ref. 5130, Retailed by Tiffany & Co. - The Keystone Watches

Patek Philippe White Gold World Time Watch Ref. 5130, Retailed by Tiffany & Co.

Patek Philippe White Gold World Time Watch Ref. 5130, Retailed by Tiffany & Co.

Sold Out

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

Patek Philippe White Gold Perpetual Calendar Chrono Watch Ref. 5970

Patek Philippe White Gold Perpetual Calendar Chrono Watch Ref. 5970

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

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Patek Philippe - Patek Philippe White Gold Ultra-Thin Calatrava Watch Ref. 3512 - The Keystone Watches

Patek Philippe White Gold Ultra-Thin Calatrava Watch Ref. 3512

Patek Philippe White Gold Ultra-Thin Calatrava Watch Ref. 3512

Sold Out

 
Patek Philippe - Patek Philippe Steel Aquanaut Automatic Watch Ref. 5167 - The Keystone Watches

Patek Philippe Steel Aquanaut Automatic Watch Ref. 5167

Patek Philippe Steel Aquanaut Automatic Watch 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

Sold Out

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New Arrivals Preview
 
Omega - Omega Yellow Gold Automatic Watch Retailed by Turler (New Arrival) - The Keystone Watches

Omega Yellow Gold Automatic Watch Retailed by Turler (New Arrival)

Omega Yellow Gold Automatic Watch Retailed by Turler (New Arrival)

$4,950 USD
 
Breguet - Breguet Yellow Gold Classique Ref. 3210 (NEW ARRIVAL) - The Keystone Watches

Breguet Yellow Gold Classique Ref. 3210 (NEW ARRIVAL)

Breguet Yellow Gold Classique Ref. 3210 (NEW ARRIVAL)

$7,200 USD
 
Audemars Piguet - Audemars Piguet White Gold Round Watch with Beaded Bracelet and Pave Diamond and Sapphire Dial (New Arrival) - The Keystone Watches

Audemars Piguet White Gold Round Watch with Beaded Bracelet and Pave Diamond and Sapphire Dial (New Arrival)

Audemars Piguet White Gold Round Watch with Beaded Bracelet and Pave Diamond and Sapphire Dial (New Arrival)

$9,800 USD
 
Louis Vuitton - Louis Vuitton Green Ceramic Monterey II (New Arrival) - The Keystone Watches

Louis Vuitton Green Ceramic Monterey II (New Arrival)

Louis Vuitton Green Ceramic Monterey II (New Arrival)

$8,800 USD
 
Omega - Omega Yellow Gold Vintage Pocket Watch 1182.61 (New Arrival) - The Keystone Watches

Omega Yellow Gold Vintage Pocket Watch 1182.61 (New Arrival)

Omega Yellow Gold Vintage Pocket Watch 1182.61 (New Arrival)

$6,500 USD
 

Piaget White Gold Altiplano Ref. 90122 with Diamonds and Sapphires (New Arrival)

Piaget White Gold Altiplano Ref. 90122 with Diamonds and Sapphires (New Arrival)

$17,750 USD
 

Bulgari Yellow Gold Coin Necklace (New Arrival)

Bulgari Yellow Gold Coin Necklace (New Arrival)

$24,500 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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