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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Minute Repeater Watch Ref. 5374 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Minute Repeater Watch Ref. 5374

Patek Philippe Platinum Perpetual Calendar Minute Repeater Watch Ref. 5374

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Rolex - Rolex Steel Zenith Daytona Chronograph Ref. 16520 with Original Warranty - The Keystone Watches

Rolex Steel Zenith Daytona Chronograph Ref. 16520 with Original Warranty

Rolex Steel Zenith Daytona Chronograph Ref. 16520 with Original Warranty

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Rolex - Rolex Steel Zenith Daytona Chronograph Ref. 16520 with Original Warranty - The Keystone Watches

Rolex Steel Zenith Daytona Chronograph Ref. 16520 with Original Warranty

Rolex Steel Zenith Daytona Chronograph Ref. 16520 with Original Warranty

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Audemars Piguet - Audemars Piguet Yellow Gold Royal Oak Ref. 15450 - The Keystone Watches

Audemars Piguet Yellow Gold Royal Oak Ref. 15450

Audemars Piguet Yellow Gold Royal Oak Ref. 15450

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

Cartier Yellow Gold Tank Cintree Watch

Cartier Yellow Gold Tank Cintree Watch

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Patek Philippe - Patek Philippe Yellow Gold World Time Watch Ref. 5110 - The Keystone Watches

Patek Philippe Yellow Gold World Time Watch Ref. 5110

Patek Philippe Yellow Gold World Time Watch Ref. 5110

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Tourbillon Watch Ref. 5016 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Tourbillon Watch Ref. 5016

Patek Philippe Platinum Perpetual Calendar Tourbillon Watch Ref. 5016

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Audemars Piguet - Audemars Piguet Yellow Gold Bracelet Watch - The Keystone Watches

Audemars Piguet Yellow Gold Bracelet Watch

Audemars Piguet Yellow Gold Bracelet Watch

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Patek Philippe - Patek Philippe Yellow Gold Calatrava Watch Ref. 5000 - The Keystone Watches

Patek Philippe Yellow Gold Calatrava Watch Ref. 5000

Patek Philippe Yellow Gold Calatrava Watch Ref. 5000

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Audemars Piguet - Audemars Piguet White Gold and Diamond Watch - The Keystone Watches

Audemars Piguet White Gold and Diamond Watch

Audemars Piguet White Gold and Diamond Watch

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FP Journe - F.P Journe Platinum Ruthenium Edition Tourbillon, Edition of 99 Pieces - The Keystone Watches

F.P Journe Platinum Ruthenium Edition Tourbillon, Edition of 99 Pieces

F.P Journe Platinum Ruthenium Edition Tourbillon, Edition of 99 Pieces

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Audemars Piguet - Audemars Piguet Two-Tone Automatic Bracelet Watch - The Keystone Watches

Audemars Piguet Two-Tone Automatic Bracelet Watch

Audemars Piguet Two-Tone Automatic Bracelet Watch

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Watch Ref. 5140 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Watch Ref. 5140

Patek Philippe Platinum Perpetual Calendar Watch Ref. 5140

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Watch Ref. 5970 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Watch Ref. 5970

Patek Philippe Platinum Perpetual Calendar Watch Ref. 5970

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Audemars Piguet - Audemars Piguet Steel Automatic Watch - The Keystone Watches

Audemars Piguet Steel Automatic Watch

Audemars Piguet Steel Automatic Watch

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De Bethune Titanium Starry Sky Ref. DB28XP

De Bethune Titanium Starry Sky Ref. DB28XP

De Bethune Titanium Starry Sky Ref. DB28XP

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Patek Philippe - Patek Philippe Ellipse White Gold Retailed by Gubelin Ref. 3589 - The Keystone Watches

Patek Philippe Ellipse White Gold Retailed by Gubelin Ref. 3589

Patek Philippe Ellipse White Gold Retailed by Gubelin Ref. 3589

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A. Lange & Sohne - A. Lange & Sohne Platinum Grand Lange 1 Lumen 117.035 - The Keystone Watches

A. Lange & Sohne Platinum Grand Lange 1 Lumen 117.035

A. Lange & Sohne Platinum Grand Lange 1 Lumen 117.035

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Patek Philippe Steel Aquanaut First Series Watch Ref. 5060

Patek Philippe Steel Aquanaut First Series Watch Ref. 5060

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Piaget - Piaget Yellow Gold Lapis Malachite Watch, 1960s - The Keystone Watches

Piaget Yellow Gold Lapis Malachite Watch, 1960s

Piaget Yellow Gold Lapis Malachite Watch, 1960s

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Audemars Piguet - Audemars Piguet Steel Cushion Ref. 5369 (NEW ARRIVAL) - The Keystone Watches

Audemars Piguet Steel Cushion Ref. 5369 (NEW ARRIVAL)

Audemars Piguet Steel Cushion Ref. 5369 (NEW ARRIVAL)

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Rolex - Rolex Steel Maxi Dial Submariner Ref. 5513 with Original Warranty - The Keystone Watches

Rolex Steel Maxi Dial Submariner Ref. 5513 with Original Warranty

Rolex Steel Maxi Dial Submariner Ref. 5513 with Original Warranty

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A. Lange & Sohne White Gold 1815 Annual Calendar Watch Ref. 238.026

A. Lange & Sohne White Gold 1815 Annual Calendar Watch Ref. 238.026

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Rolex - Rolex Yellow Gold Day-Date with Morelli Finish Ref. 1811 - The Keystone Watches

Rolex Yellow Gold Day-Date with Morelli Finish Ref. 1811

Rolex Yellow Gold Day-Date with Morelli Finish Ref. 1811

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Audemars Piguet - Audemars Piguet Royal Oak Tourbillon Ref. 26521, Edition of 10 - The Keystone Watches

Audemars Piguet Royal Oak Tourbillon Ref. 26521, Edition of 10

Audemars Piguet Royal Oak Tourbillon Ref. 26521, Edition of 10

Sold Out

 
Patek Philippe - Patek Philippe Steel Calatrava Ref. 3509 - The Keystone Watches

Patek Philippe Steel Calatrava Ref. 3509

Patek Philippe Steel Calatrava Ref. 3509

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IWC - IWC Yellow Gold Da Vinci with Original Bark Finish - The Keystone Watches

IWC Yellow Gold Da Vinci with Original Bark Finish

IWC Yellow Gold Da Vinci with Original Bark Finish

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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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Piaget - Piaget Yellow Gold Lapis Beta 21 Watch Ref. 14101 - The Keystone Watches

Piaget Yellow Gold Lapis Beta 21 Watch Ref. 14101

Piaget Yellow Gold Lapis Beta 21 Watch Ref. 14101

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Rolex - Rolex Daytona Big Red Watch Ref. 6263 - The Keystone Watches

Rolex Daytona Big Red Watch Ref. 6263

Rolex Daytona Big Red Watch Ref. 6263

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Audemars Piguet - Audemars Piguet White Gold Vintage Watch - The Keystone Watches

Audemars Piguet White Gold Vintage Watch

Audemars Piguet White Gold Vintage Watch

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Audemars Piguet - Audemars Piguet White Gold Skeleton Pocket Watch - The Keystone Watches

Audemars Piguet White Gold Skeleton Pocket Watch

Audemars Piguet White Gold Skeleton Pocket Watch

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Patek Philippe - Patek Philippe Platinum Perpetual Calendar Split Seconds Chronograph Ref. 5004 - The Keystone Watches

Patek Philippe Platinum Perpetual Calendar Split Seconds Chronograph Ref. 5004

Patek Philippe Platinum Perpetual Calendar Split Seconds Chronograph Ref. 5004

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Audemars Piguet - Audemars Piguet White Gold Automatic Tonneau Watch Ref. 5279 - The Keystone Watches

Audemars Piguet White Gold Automatic Tonneau Watch Ref. 5279

Audemars Piguet White Gold Automatic Tonneau Watch Ref. 5279

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Rolex - Rolex Yellow Gold Cosmograph Daytona Zenith Watch Ref. 16528 from 1991 - The Keystone Watches

Rolex Yellow Gold Cosmograph Daytona Zenith Watch Ref. 16528 from 1991

Rolex Yellow Gold Cosmograph Daytona Zenith Watch Ref. 16528 from 1991

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Rolex - Rolex Yellow Gold Optical Bracelet Watch by George LEnfant - The Keystone Watches

Rolex Yellow Gold Optical Bracelet Watch by George LEnfant

Rolex Yellow Gold Optical Bracelet Watch by George LEnfant

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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)

$150,000 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
 
Patek Philiipe White Gold Calatrava Watch Ref. 3919 (New Arrival)

Patek Philiipe White Gold Calatrava Watch Ref. 3919 (New Arrival)

Patek Philiipe White Gold Calatrava Watch Ref. 3919 (New Arrival)

$15,000 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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