Skip to content

213-632-9061    Hello@TheKeystone.com   WhatsApp

The Keystone Watches
Cart $0 (0)
The Keystone Watches
BY BRAND
Patek Philippe ROLEX Audemars Piguet CARTIER OTHER (OMEGA, A. LANGE & SÖHNE, F.P. JOURNE, ETC.) Piaget
NEW ARRIVALS
HOLY GRAILS
Objet d'art
RECENTLY SOLD
PASSING TIME
ABOUT US
Search
Cart $0 (0)
BY BRAND
Patek Philippe
ROLEX
Audemars Piguet
CARTIER
OTHER (OMEGA, A. LANGE & SÖHNE, F.P. JOURNE, ETC.)
Piaget
NEW ARRIVALS
HOLY GRAILS
Objet d'art
RECENTLY SOLD
PASSING TIME
ABOUT US

Cart

Your cart is empty.

Continue browsing

Shipping & taxes calculated at checkout

Sort

  • Featured
  • Best selling
  • Alphabetically, A-Z
  • Alphabetically, Z-A
  • Price, low to high
  • Price, high to low
  • Date, old to new
  • Date, new to old

Filter

 
 
 
$
-
$
 
Cartier Platinum Tank Louis Ref. 1601

Cartier Platinum Tank Louis Ref. 1601

Cartier Platinum Tank Louis Ref. 1601

$20,000 USD
 
Cartier - Cartier Platinum Santos Dumont Ref. 1575 - The Keystone Watches

Cartier Platinum Santos Dumont Ref. 1575

Cartier Platinum Santos Dumont Ref. 1575

$26,000 USD
 
Rolex Platinum Ladies Datejust Diamond Ref. 69136

Rolex Platinum Ladies Datejust Diamond Ref. 69136

Rolex Platinum Ladies Datejust Diamond Ref. 69136

$13,500 USD
 
Cartier - Cartier Vintage Platinum Tonneau Mecanique Watch - The Keystone Watches

Cartier Vintage Platinum Tonneau Mecanique Watch

Cartier Vintage Platinum Tonneau Mecanique Watch

$24,500 USD
 

Rolex Platinum Day Date Ref. 18206

Rolex Platinum Day Date Ref. 18206

$29,500 USD
 
Rolex Platinum Day Date Ref. 18206 with Punched Warranty Paper

Rolex Platinum Day Date Ref. 18206 with Punched Warranty Paper

Rolex Platinum Day Date Ref. 18206 with Punched Warranty Paper

$29,000 USD
 
Patek Philippe - Patek Philippe Platinum Calatrava Watch Ref. 570 with Archive - The Keystone Watches

Patek Philippe Platinum Calatrava Watch Ref. 570 with Archive

Patek Philippe Platinum Calatrava Watch Ref. 570 with Archive

$165,000 USD
 
Franck Muller - Franck Muller Platinum Rotor Calendar Ref. 3801S6Q - The Keystone Watches

Franck Muller Platinum Rotor Calendar Ref. 3801S6Q

Franck Muller Platinum Rotor Calendar Ref. 3801S6Q

$15,000 USD
 

Piaget Platinum Georges Piaget Watch Ref 91000, One of 100 Made

Piaget Platinum Georges Piaget Watch Ref 91000, One of 100 Made

$8,900 USD
 

Piaget Platinum Altiplano Ultra Thin Watch Ref. G0A27009

Piaget Platinum Altiplano Ultra Thin Watch Ref. G0A27009

$9,200 USD
 

Patek Philippe Platinum Square Watch Ref. 2488

Patek Philippe Platinum Square Watch Ref. 2488

$25,000 USD
 
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

$875,000 USD
 
Patek Philippe - Patek Philippe Platinum Grand Complications Minute Repeater Watch Ref. 5207 - The Keystone Watches

Patek Philippe Platinum Grand Complications Minute Repeater Watch Ref. 5207

Patek Philippe Platinum Grand Complications Minute Repeater Watch Ref. 5207

"Price upon request"
 

A. Lange & Sohne Platinum 1815 Tourbillon Watch Ref. 730.025

A. Lange & Sohne Platinum 1815 Tourbillon Watch Ref. 730.025

$118,000 USD
 

Patek Philippe Platinum Chronograph Watch Ref. 5070P

Patek Philippe Platinum Chronograph Watch Ref. 5070P

$205,000 USD
 

Audemars Piguet Platinum Square Watch

Audemars Piguet Platinum Square Watch

$12,000 USD
 
Vacheron Constantin - Vacheron Constantin Platinum Perpetual Ref. 43031 - The Keystone Watches

Vacheron Constantin Platinum Perpetual Ref. 43031

Vacheron Constantin Platinum Perpetual Ref. 43031

$55,000 USD
 

Patek Philippe Platinum Split Seconds Monopusher Chronograph 5959

Patek Philippe Platinum Split Seconds Monopusher Chronograph 5959

"Price upon request"
 

Rolex Platinum and Diamond Cover Watch

Rolex Platinum and Diamond Cover Watch

$65,000 USD
New Arrivals Preview
 
Breguet Yellow Gold Classique Ref. 3210 (NEW ARRIVAL)

Breguet Yellow Gold Classique Ref. 3210 (NEW ARRIVAL)

Breguet Yellow Gold Classique Ref. 3210 (NEW ARRIVAL)

$7,200 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
 

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

SHOP

  • BY BRAND
  • NEW ARRIVALS
  • HOLY GRAILS
  • Objet d'art
  • RECENTLY SOLD
  • PASSING TIME
  • ABOUT US

Terms & Conditions

  • SEARCH
  • SELL TO US
  • ABOUT US
  • CONTACT US
  • TERMS & CONDITIONS
  • Do not sell my personal information

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.

Currency

  • Afghanistan (AF ؋)
  • Åland Islands (AX €)
  • Albania (AL L)
  • Algeria (DZ د.ج)
  • Andorra (AD €)
  • Angola (AO $)
  • Anguilla (AI $)
  • Antigua & Barbuda (AG $)
  • Argentina (AR $)
  • Armenia (AM դր.)
  • Aruba (AW ƒ)
  • Ascension Island (AC £)
  • Australia (AU $)
  • Austria (AT €)
  • Azerbaijan (AZ ₼)
  • Bahamas (BS $)
  • Bahrain (BH $)
  • Bangladesh (BD ৳)
  • Barbados (BB $)
  • Belarus (BY $)
  • Belgium (BE €)
  • Belize (BZ $)
  • Benin (BJ Fr)
  • Bermuda (BM $)
  • Bhutan (BT $)
  • Bolivia (BO Bs.)
  • Bosnia & Herzegovina (BA КМ)
  • Botswana (BW P)
  • Brazil (BR $)
  • British Indian Ocean Territory (IO $)
  • British Virgin Islands (VG $)
  • Brunei (BN $)
  • Bulgaria (BG лв.)
  • Burkina Faso (BF Fr)
  • Burundi (BI Fr)
  • Cambodia (KH ៛)
  • Cameroon (CM CFA)
  • Canada (CA $)
  • Cape Verde (CV $)
  • Caribbean Netherlands (BQ $)
  • Cayman Islands (KY $)
  • Central African Republic (CF CFA)
  • Chad (TD CFA)
  • Chile (CL $)
  • China (CN ¥)
  • Christmas Island (CX $)
  • Cocos (Keeling) Islands (CC $)
  • Colombia (CO $)
  • Comoros (KM Fr)
  • Congo - Brazzaville (CG CFA)
  • Congo - Kinshasa (CD Fr)
  • Cook Islands (CK $)
  • Costa Rica (CR ₡)
  • Côte d’Ivoire (CI Fr)
  • Croatia (HR €)
  • Curaçao (CW ƒ)
  • Cyprus (CY €)
  • Czechia (CZ Kč)
  • Denmark (DK kr.)
  • Djibouti (DJ Fdj)
  • Dominica (DM $)
  • Dominican Republic (DO $)
  • Ecuador (EC $)
  • Egypt (EG ج.م)
  • El Salvador (SV $)
  • Equatorial Guinea (GQ CFA)
  • Eritrea (ER $)
  • Estonia (EE €)
  • Eswatini (SZ $)
  • Ethiopia (ET Br)
  • Falkland Islands (FK £)
  • Faroe Islands (FO kr.)
  • Fiji (FJ $)
  • Finland (FI €)
  • France (FR €)
  • French Guiana (GF €)
  • French Polynesia (PF Fr)
  • French Southern Territories (TF €)
  • Gabon (GA Fr)
  • Gambia (GM D)
  • Georgia (GE $)
  • Germany (DE €)
  • Ghana (GH $)
  • Gibraltar (GI £)
  • Greece (GR €)
  • Greenland (GL kr.)
  • Grenada (GD $)
  • Guadeloupe (GP €)
  • Guatemala (GT Q)
  • Guernsey (GG £)
  • Guinea (GN Fr)
  • Guinea-Bissau (GW Fr)
  • Guyana (GY $)
  • Haiti (HT $)
  • Honduras (HN L)
  • Hong Kong SAR (HK $)
  • Hungary (HU Ft)
  • Iceland (IS kr)
  • India (IN ₹)
  • Indonesia (ID Rp)
  • Iraq (IQ $)
  • Ireland (IE €)
  • Isle of Man (IM £)
  • Israel (IL ₪)
  • Italy (IT €)
  • Jamaica (JM $)
  • Japan (JP ¥)
  • Jersey (JE $)
  • Jordan (JO $)
  • Kazakhstan (KZ ₸)
  • Kenya (KE KSh)
  • Kiribati (KI $)
  • Kosovo (XK €)
  • Kuwait (KW $)
  • Kyrgyzstan (KG som)
  • Laos (LA ₭)
  • Latvia (LV €)
  • Lebanon (LB ل.ل)
  • Lesotho (LS $)
  • Liberia (LR $)
  • Libya (LY $)
  • Liechtenstein (LI CHF)
  • Lithuania (LT €)
  • Luxembourg (LU €)
  • Macao SAR (MO P)
  • Madagascar (MG $)
  • Malawi (MW MK)
  • Malaysia (MY RM)
  • Maldives (MV MVR)
  • Mali (ML Fr)
  • Malta (MT €)
  • Martinique (MQ €)
  • Mauritania (MR $)
  • Mauritius (MU ₨)
  • Mayotte (YT €)
  • Mexico (MX $)
  • Moldova (MD L)
  • Monaco (MC €)
  • Mongolia (MN ₮)
  • Montenegro (ME €)
  • Montserrat (MS $)
  • Morocco (MA د.م.)
  • Mozambique (MZ $)
  • Myanmar (Burma) (MM K)
  • Namibia (NA $)
  • Nauru (NR $)
  • Nepal (NP Rs.)
  • Netherlands (NL €)
  • New Caledonia (NC Fr)
  • New Zealand (NZ $)
  • Nicaragua (NI C$)
  • Niger (NE Fr)
  • Nigeria (NG ₦)
  • Niue (NU $)
  • Norfolk Island (NF $)
  • North Macedonia (MK ден)
  • Norway (NO $)
  • Oman (OM $)
  • Pakistan (PK ₨)
  • Palestinian Territories (PS ₪)
  • Panama (PA $)
  • Papua New Guinea (PG K)
  • Paraguay (PY ₲)
  • Peru (PE S/)
  • Philippines (PH ₱)
  • Pitcairn Islands (PN $)
  • Poland (PL zł)
  • Portugal (PT €)
  • Qatar (QA ر.ق)
  • Réunion (RE €)
  • Romania (RO Lei)
  • Russia (RU $)
  • Rwanda (RW FRw)
  • Samoa (WS T)
  • San Marino (SM €)
  • São Tomé & Príncipe (ST Db)
  • Saudi Arabia (SA ر.س)
  • Senegal (SN Fr)
  • Serbia (RS РСД)
  • Seychelles (SC $)
  • Sierra Leone (SL Le)
  • Singapore (SG $)
  • Sint Maarten (SX ƒ)
  • Slovakia (SK €)
  • Slovenia (SI €)
  • Solomon Islands (SB $)
  • Somalia (SO $)
  • South Africa (ZA $)
  • South Georgia & South Sandwich Islands (GS £)
  • South Korea (KR ₩)
  • South Sudan (SS $)
  • Spain (ES €)
  • Sri Lanka (LK ₨)
  • St. Barthélemy (BL €)
  • St. Helena (SH £)
  • St. Kitts & Nevis (KN $)
  • St. Lucia (LC $)
  • St. Martin (MF €)
  • St. Pierre & Miquelon (PM €)
  • St. Vincent & Grenadines (VC $)
  • Sudan (SD $)
  • Suriname (SR $)
  • Svalbard & Jan Mayen (SJ $)
  • Sweden (SE kr)
  • Switzerland (CH CHF)
  • Taiwan (TW $)
  • Tajikistan (TJ ЅМ)
  • Tanzania (TZ Sh)
  • Thailand (TH ฿)
  • Timor-Leste (TL $)
  • Togo (TG Fr)
  • Tokelau (TK $)
  • Tonga (TO T$)
  • Trinidad & Tobago (TT $)
  • Tristan da Cunha (TA £)
  • Tunisia (TN $)
  • Türkiye (TR $)
  • Turkmenistan (TM $)
  • Turks & Caicos Islands (TC $)
  • Tuvalu (TV $)
  • U.S. Outlying Islands (UM $)
  • Uganda (UG USh)
  • Ukraine (UA ₴)
  • United Arab Emirates (AE د.إ)
  • United Kingdom (GB £)
  • United States (US $)
  • Uruguay (UY $U)
  • Uzbekistan (UZ so'm)
  • Vanuatu (VU Vt)
  • Vatican City (VA €)
  • Venezuela (VE $)
  • Vietnam (VN ₫)
  • Wallis & Futuna (WF Fr)
  • Western Sahara (EH د.م.)
  • Yemen (YE ﷼)
  • Zambia (ZM $)
  • Zimbabwe (ZW $)
© The Keystone Watches 2025