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The Keystone

The Keystone is focused on bringing customers unique timepieces and an unparalleled experience in acquiring and engaging with vintage watches. We are dedicated to helping our customers further their watch knowledge and find the pieces that excite them. Whether you are looking to purchase your first watch or seeking the next rare piece for your collection, The Keystone is here to help.

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New Arrivals

Patek Philippe Chronograph 5070R-001 18k RG Unworn Gents 18k RG SIlver 42mm Manual 2013 Black Crocodile Original Box and Certificate

Patek Philippe Chronograph 5070R-001 18k RG Unworn Gents 18k RG SIlver 42mm Manual 2013 Black Crocodile Original Box and Certificate

Patek Philippe Rose Gold Chronograph Watch Ref. 5070, Completely Unworn

$68,000.00

Piaget Vintage 15958 18k YG Likely Never Polished, Original Finish Gents 18k YG White 34mm Automatic 1980s Crocodile Leather Original Box

Piaget Vintage 15958 18k YG Likely Never Polished, Original Finish Gents 18k YG White 34mm Automatic 1980s Crocodile Leather Original Box

Piaget Yellow Gold Perpetual Calendar Watch

$7,500.00

Patek Philippe World Time 5131G-001 18k WG Unworn Gents 18k WG Cloisonne Dial 39.5mm Automatic 2011 Crocodile Leather Original Box and Certificate

Patek Philippe World Time 5131G-001 18k WG Unworn Gents 18k WG Cloisonne Dial 39.5mm Automatic 2011 Crocodile Leather Original Box and Certificate

Patek Philippe White Gold World Time Cloisonne Watch Ref. 5131

$115,000.00

Patek Philippe Grand Complication 5207P-001 Platinum Unworn Gents Platinum Honey Gold Dial 41mm Manual 2009 Crocodile Leather Box, Certificate, and Additional Solid Case Back

Patek Philippe Grand Complication 5207P-001 Platinum Unworn Gents Platinum Honey Gold Dial 41mm Manual 2009 Crocodile Leather Box, Certificate, and Additional Solid Case Back

Patek Philippe Platinum Grand Complications Minute Repeater Watch Ref. 5207

$650,000.00

Van Cleef & Arpels Vintage 44518/411 18k YG Likely Never Polished, Original Finish Gents 18k YG Gold Dial with Diamonds 38mm Automatic 1995 Yellow Gold Bracelet Original Box and Certificate

Van Cleef & Arpels Vintage 44518/411 18k YG Likely Never Polished, Original Finish Gents 18k YG Gold Dial with Diamonds 38mm Automatic 1995 Yellow Gold Bracelet Original Box and Certificate

Vacheron Constantin Yellow Gold Jumbo 222 Diamond Watch Ref. 44518

$55,000.00

Patek Philippe World Time 5110J 18k YG Unworn NO STYLE SPECIFIED 18k YG Silver Dial 37mm Automatic 2013 Crocodile Leather Original Box and Certificate

Patek Philippe World Time 5110J 18k YG Unworn NO STYLE SPECIFIED 18k YG Silver Dial 37mm Automatic 2013 Crocodile Leather Original Box and Certificate

Patek Philippe Yellow Gold World Time Watch Ref. 5110

$25,000.00

Patek Philippe 10-Day Tourbillon 5101R-001 18k RG Unworn NO STYLE SPECIFIED 18k RG Grey 30 X 51mm Manual 2009 Crocodile Leather Original Box and Certificate

Patek Philippe 10-Day Tourbillon 5101R-001 18k RG Unworn NO STYLE SPECIFIED 18k RG Grey 30 X 51mm Manual 2009 Crocodile Leather Original Box and Certificate

Patek Philippe Rose Gold 10-Day Tourbillon Watch, Ref. 5101

$170,000.00

Patek Philippe Perp Cal Chrono 5270G-013 18k WG Unworn Gents 18k WG White Dial 41mm Manual 2013 Crocodile Leather Box, Certificate, and Additional Solid Case Back

Patek Philippe Perp Cal Chrono 5270G-013 18k WG Unworn Gents 18k WG White Dial 41mm Manual 2013 Crocodile Leather Box, Certificate, and Additional Solid Case Back

Patek Philippe White Gold Perpetual Calendar Chronograph Watch, Ref. 5270

$125,000.00

Patek Philippe Perpetual Calendar Retrograde 5050J-023 18k YG Unworn Gents 18k YG Rare Grey Sunburst Dial 36mm Automatic 2013 Crocodile Leather Box, Certificate, and Additional Solid Case Back

Patek Philippe Perpetual Calendar Retrograde 5050J-023 18k YG Unworn Gents 18k YG Rare Grey Sunburst Dial 36mm Automatic 2013 Crocodile Leather Box, Certificate, and Additional Solid Case Back

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

$110,000.00

Patek Philippe Perpetual Calendar Chrono 5951P-001 Platinum Unworn Gents Platinum Black 37 X 45mm Manual 2012 Crocodile Leather Box, Certificate, and Additional Solid Case Back

Patek Philippe Perpetual Calendar Chrono 5951P-001 Platinum Unworn Gents Platinum Black 37 X 45mm Manual 2012 Crocodile Leather Box, Certificate, and Additional Solid Case Back

Patek Philippe Platinum Split Seconds Perpetual Monopoissor Chronograph Watch Ref. 5951

$350,000.00

Patek Philippe Perpetual Calendar Chrono 5004P-021 Platinum Unworn Gents Platinum Silver Dial 36.5mm Manual 2010 Crocodile Leather Box, Certificate, and Additional Solid Case Back

Patek Philippe Perpetual Calendar Chrono 5004P-021 Platinum Unworn Gents Platinum Silver Dial 36.5mm Manual 2010 Crocodile Leather Box, Certificate, and Additional Solid Case Back

Patek Philippe Platinum Perpetual Split Seconds Chronograph Watch Ref. 5004

$245,000.00

Patek Philippe Aquanaut 5060A-001 Steel Overall Mint Original Condition Unisex Steel Black Dial with Tritium Markers 36mm Automatic 1997 Rubber Original Box and Certificate

Patek Philippe Aquanaut 5060A-001 Steel Overall Mint Original Condition Unisex Steel Black Dial with Tritium Markers 36mm Automatic 1997 Rubber Original Box and Certificate

Patek Philippe Aquanaut Automatic Watch Watch Ref. 5060, First Series Aquanaut

$35,000.00

Passing Time

Patek Philippe Perpetual Calendar Tourbillon Minute Repeater Ref. 5016

Brand Profile: Philippe Dufour

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