EVENT: Santos de Cartier Party 

WHERE: San Francisco 

Happenings: Cartier knows how to throw an epic party. The luxury watchmaker and high jeweller celebrated the launch of its new Santos de Cartier watch with a stellar party at Pier 48 in San Francisco. Screen sirens turned out en masse. Celebrities such as Sienna Miller, Idris Elba, Lily Collins, Jeremy Renner and more were spotted at the party. 

Actor and producer Jake Gyllenhaal, who partnered with Cartier on its new Santos watch, also showed up to support. Guests enjoyed special performances by Phoenix, Jamie XX and Hot Chip, dancing until the early hours.

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