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Patek Philippe - Patek Philippe Yellow Gold Perpetual Retrograde Grey Dial Watch Ref. 5050 - The Keystone Watches

Patek Philippe Yellow Gold Perpetual Retrograde Grey Dial Watch Ref. 5050

Patek Philippe Yellow Gold Perpetual Retrograde Grey Dial Watch Ref. 5050

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Patek Philippe - Patek Philippe Yellow Gold Perpetual Split Seconds Chrono Watch Ref. 5004 - The Keystone Watches

Patek Philippe Yellow Gold Perpetual Split Seconds Chrono Watch Ref. 5004

Patek Philippe Yellow Gold Perpetual Split Seconds Chrono Watch Ref. 5004

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Patek Philippe - Patek Philippe Yellow Gold Pocket Watch - The Keystone Watches

Patek Philippe Yellow Gold Pocket Watch

Patek Philippe Yellow Gold Pocket Watch

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Patek Philippe - Patek Philippe Yellow Gold Pocket Watch - The Keystone Watches

Patek Philippe Yellow Gold Pocket Watch

Patek Philippe Yellow Gold Pocket Watch

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Patek Philippe - Patek Philippe Yellow Gold Pocket Watch Minute Repeater, Circa 1905 - The Keystone Watches

Patek Philippe Yellow Gold Pocket Watch Minute Repeater, Circa 1905

Patek Philippe Yellow Gold Pocket Watch Minute Repeater, Circa 1905

$28,000 USD
 

Patek Philippe Yellow Gold Pocket Watch Ref. 652 Retailed by Tiffany & Co.

Patek Philippe Yellow Gold Pocket Watch Ref. 652 Retailed by Tiffany & Co.

$8,000 USD
 
Patek Philippe - Patek Philippe Yellow Gold Pocket Watch Ref. 652 with Breguet Numerals Retailed by Tiffany & Co. Ref. 652/1 - The Keystone Watches

Patek Philippe Yellow Gold Pocket Watch Ref. 652 with Breguet Numerals Retailed by Tiffany & Co. Ref. 652/1

Patek Philippe Yellow Gold Pocket Watch Ref. 652 with Breguet Numerals Retailed by Tiffany & Co. Ref. 652/1

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Patek Philippe Yellow Gold Pocket Watch Ref. 763

Patek Philippe Yellow Gold Pocket Watch Ref. 763

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Patek Philippe - Patek Philippe Yellow Gold Pocket Watch Ref. 783 - The Keystone Watches

Patek Philippe Yellow Gold Pocket Watch Ref. 783

Patek Philippe Yellow Gold Pocket Watch Ref. 783

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Patek Philippe - Patek Philippe Yellow Gold Pocket Watch with Guilloche Dial - The Keystone Watches

Patek Philippe Yellow Gold Pocket Watch with Guilloche Dial

Patek Philippe Yellow Gold Pocket Watch with Guilloche Dial

$9,750 USD
 
Patek Philippe - Patek Philippe Yellow Gold Pocket Watch with Original Paperwork - The Keystone Watches

Patek Philippe Yellow Gold Pocket Watch with Original Paperwork

Patek Philippe Yellow Gold Pocket Watch with Original Paperwork

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Patek Philippe - Patek Philippe Yellow Gold Rectangular Tank Watch Ref. 425 - The Keystone Watches

Patek Philippe Yellow Gold Rectangular Tank Watch Ref. 425

Patek Philippe Yellow Gold Rectangular Tank Watch Ref. 425

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Patek Philippe Yellow Gold Rectangular Watch Ref. 10 with Remarkable Engraving Details

Patek Philippe Yellow Gold Rectangular Watch Ref. 10 with Remarkable Engraving Details

Patek Philippe Yellow Gold Rectangular Watch Ref. 10 with Remarkable Engraving Details

$50,000 USD
 
Patek Philippe - Patek Philippe Yellow Gold Rectangular Watch Ref. 2415 - The Keystone Watches

Patek Philippe Yellow Gold Rectangular Watch Ref. 2415

Patek Philippe Yellow Gold Rectangular Watch Ref. 2415

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Patek Philippe - Patek Philippe Yellow Gold Rectangular Watch Ref. 425 - The Keystone Watches

Patek Philippe Yellow Gold Rectangular Watch Ref. 425

Patek Philippe Yellow Gold Rectangular Watch Ref. 425

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Patek Philippe - Patek Philippe Yellow Gold Ref. 3604 Retailed by Gubelin - The Keystone Watches

Patek Philippe Yellow Gold Ref. 3604 Retailed by Gubelin

Patek Philippe Yellow Gold Ref. 3604 Retailed by Gubelin

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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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Patek Philippe Yellow Gold Skeleton Watch Ref. 3883

Patek Philippe Yellow Gold Skeleton Watch Ref. 3883

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Patek Philippe - Patek Philippe Yellow Gold Skeletonized Enamel Watch Ref. 3885 - The Keystone Watches

Patek Philippe Yellow Gold Skeletonized Enamel Watch Ref. 3885

Patek Philippe Yellow Gold Skeletonized Enamel Watch Ref. 3885

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Patek Philippe - Patek Philippe Yellow Gold Skeletonized Enamel Watch Ref. 3885 - The Keystone Watches

Patek Philippe Yellow Gold Skeletonized Enamel Watch Ref. 3885

Patek Philippe Yellow Gold Skeletonized Enamel Watch Ref. 3885

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Patek Philippe - Patek Philippe Yellow Gold Split Seconds Perpetual Watch Ref. 5004 - The Keystone Watches

Patek Philippe Yellow Gold Split Seconds Perpetual Watch Ref. 5004

Patek Philippe Yellow Gold Split Seconds Perpetual Watch Ref. 5004

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Patek Philippe - Patek Philippe Yellow Gold Split Seconds Perpetual Watch Ref. 5004 - The Keystone Watches

Patek Philippe Yellow Gold Split Seconds Perpetual Watch Ref. 5004

Patek Philippe Yellow Gold Split Seconds Perpetual Watch Ref. 5004

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Patek Philippe - Patek Philippe Yellow Gold Square Watch Ref. 5 from 1920 - The Keystone Watches

Patek Philippe Yellow Gold Square Watch Ref. 5 from 1920

Patek Philippe Yellow Gold Square Watch Ref. 5 from 1920

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Patek Philippe - Patek Philippe Yellow Gold Starburst Beta Quartz Watch Ref. 3603 - The Keystone Watches

Patek Philippe Yellow Gold Starburst Beta Quartz Watch Ref. 3603

Patek Philippe Yellow Gold Starburst Beta Quartz Watch Ref. 3603

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Patek Philippe - Patek Philippe Yellow Gold Strap Watch, Ref. 2562, Retailed by Tiffany & Co. - The Keystone Watches

Patek Philippe Yellow Gold Strap Watch, Ref. 2562, Retailed by Tiffany & Co.

Patek Philippe Yellow Gold Strap Watch, Ref. 2562, Retailed by Tiffany & Co.

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Patek Philippe - Patek Philippe Yellow Gold Tasti Tondi Chronograph Watch Ref. 1463 on Gay Freres Bracelet - The Keystone Watches

Patek Philippe Yellow Gold Tasti Tondi Chronograph Watch Ref. 1463 on Gay Freres Bracelet

Patek Philippe Yellow Gold Tasti Tondi Chronograph Watch Ref. 1463 on Gay Freres Bracelet

$185,000 USD
 
Patek Philippe - Patek Philippe Yellow Gold Tiffany & Co Watch Ref. 425 - The Keystone Watches

Patek Philippe Yellow Gold Tiffany & Co Watch Ref. 425

Patek Philippe Yellow Gold Tiffany & Co Watch Ref. 425

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Patek Philippe - Patek Philippe Yellow Gold Tigerseye Watch Ref. 4282 - The Keystone Watches

Patek Philippe Yellow Gold Tigerseye Watch Ref. 4282

Patek Philippe Yellow Gold Tigerseye Watch Ref. 4282

$13,000 USD
 
Patek Philippe - Patek Philippe Yellow Gold Travel Time Watch Ref. 2597 - The Keystone Watches

Patek Philippe Yellow Gold Travel Time Watch Ref. 2597

Patek Philippe Yellow Gold Travel Time Watch Ref. 2597

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Patek Philippe - Patek Philippe Yellow Gold TV-Shaped, Cushion Automatic Watch Ref. 3604, Retailed by Gubelin - The Keystone Watches

Patek Philippe Yellow Gold TV-Shaped, Cushion Automatic Watch Ref. 3604, Retailed by Gubelin

Patek Philippe Yellow Gold TV-Shaped, Cushion Automatic Watch Ref. 3604, Retailed by Gubelin

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Patek Philippe - Patek Philippe Yellow Gold Unusual Lugs Watch Ref. 2429 - The Keystone Watches

Patek Philippe Yellow Gold Unusual Lugs Watch Ref. 2429

Patek Philippe Yellow Gold Unusual Lugs Watch Ref. 2429

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Patek Philippe - Patek Philippe Yellow Gold Vintage Automatic Watch Ref. 3861/02 with Papers - The Keystone Watches

Patek Philippe Yellow Gold Vintage Automatic Watch Ref. 3861/02 with Papers

Patek Philippe Yellow Gold Vintage Automatic Watch Ref. 3861/02 with Papers

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Patek Philippe - Patek Philippe Yellow Gold Vintage Jumbo Ellipse Ref. 3798/3 on JPE Chain Band - The Keystone Watches

Patek Philippe Yellow Gold Vintage Jumbo Ellipse Ref. 3798/3 on JPE Chain Band

Patek Philippe Yellow Gold Vintage Jumbo Ellipse Ref. 3798/3 on JPE Chain Band

$17,000 USD
 
Patek Philippe - Patek Philippe Yellow Gold Vintage Watch Ref. 3319 Retailed by Tiffany & Co. - The Keystone Watches

Patek Philippe Yellow Gold Vintage Watch Ref. 3319 Retailed by Tiffany & Co.

Patek Philippe Yellow Gold Vintage Watch Ref. 3319 Retailed by Tiffany & Co.

$10,000 USD
 
Patek Philippe - Patek Philippe Yellow Gold Vintage Watch Ref. 3858 - The Keystone Watches

Patek Philippe Yellow Gold Vintage Watch Ref. 3858

Patek Philippe Yellow Gold Vintage Watch Ref. 3858

Sold Out

 

Patek Philippe Yellow Gold Watch (NEW ARRIVAL)

Patek Philippe Yellow Gold Watch (NEW ARRIVAL)

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New Arrivals Preview
 
Gerald Genta Fantasy Retro M.10 MOP Mickey Mouse for Hong Kong Disney Watch (New Arrival)

Gerald Genta Fantasy Retro M.10 MOP Mickey Mouse for Hong Kong Disney Watch (New Arrival)

Gerald Genta Fantasy Retro M.10 MOP Mickey Mouse for Hong Kong Disney Watch (New Arrival)

$23,750 USD
 
Vacheron Constantin - Vacheron Constantin Yellow Gold Grand Complication Pocket Watch (NEW ARRIVAL) - The Keystone Watches

Vacheron Constantin Yellow Gold Grand Complication Pocket Watch (NEW ARRIVAL)

Vacheron Constantin Yellow Gold Grand Complication Pocket Watch (NEW ARRIVAL)

$155,000 USD
 
Patek Philippe Steel Automatic UFO Ref. 3580 (New Arrival)

Patek Philippe Steel Automatic UFO Ref. 3580 (New Arrival)

Patek Philippe Steel Automatic UFO Ref. 3580 (New Arrival)

$13,250 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
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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