Pharrell's auction house sold a 'holy grail' watch collection for over $1 million. These are the 5 priciest pieces.

Tech Insider : Business, Style
Pharell Williams
Joopiter, an auction house founded by Pharrell Williams, held a watch auction in July.

Alexander Tamargo/Getty Images for Richard Mille

Silicon Valley elite like Mark Zuckerberg and Tim Cook are obsessed with these watches

Tech Insider
Apple CEO Tim Cook
Apple CEO Tim Cook stays true to the tech bro persona of function over flashiness.

Justin Sullivan/Getty Images

Mark Zuckerberg got major timepiece envy over Anant Ambani's Richard Mille watch

Tech Insider
Anant Ambani (left) and Mark Zuckerberg (right).
Anant Ambani (left) and Mark Zuckerberg (right).

Anshuman Poyrekar/Hindustan Times via Getty Images; Andrew Caballero-Reynolds/AFP via Getty Images

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