Blog, EVENTS · April 6, 2018Sienna Miller In Proenza Schouler @ ‘Bold & Fearless’ Santos de Cartier Watch Launch Sienna Miller attended the ‘Bold & Fearless’ Santos de Cartier watch launch event on Thursday (April 5) in San Francisco, California. She is wearing a Proenza Schouler Fall 2018 dress. Author: fashionsizzle