![Sienna Miller attends the launch event of Santos de Cartier watch at Pier 48 in San Francisco, California on April 5, 2018. (Photo by Yichuan Cao/Sipa USA Stock Photo - Alamy Sienna Miller attends the launch event of Santos de Cartier watch at Pier 48 in San Francisco, California on April 5, 2018. (Photo by Yichuan Cao/Sipa USA Stock Photo - Alamy](https://c8.alamy.com/comp/2ER3X1T/sienna-miller-attends-the-launch-event-of-santos-de-cartier-watch-at-pier-48-in-san-francisco-california-on-april-5-2018-photo-by-yichuan-caosipa-usa-2ER3X1T.jpg)
Sienna Miller attends the launch event of Santos de Cartier watch at Pier 48 in San Francisco, California on April 5, 2018. (Photo by Yichuan Cao/Sipa USA Stock Photo - Alamy
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57 Sienna Miller Hosts The Cartier Bow Celebration Photos and Premium High Res Pictures - Getty Images
![Sienna Miller wearing Cartier jewelry arrives to the Cartier Los Angeles Party to launch the Panthere de Cartier Watch Collection, held at Milk Studios in Los Angeles, California, Friday, May 5, 2017. ( Sienna Miller wearing Cartier jewelry arrives to the Cartier Los Angeles Party to launch the Panthere de Cartier Watch Collection, held at Milk Studios in Los Angeles, California, Friday, May 5, 2017. (](https://c8.alamy.com/comp/2ETRB5T/sienna-miller-wearing-cartier-jewelry-arrives-to-the-cartier-los-angeles-party-to-launch-the-panthere-de-cartier-watch-collection-held-at-milk-studios-in-los-angeles-california-friday-may-5-2017-photo-by-jennifer-graylock-please-use-credit-from-credit-field-2ETRB5T.jpg)
Sienna Miller wearing Cartier jewelry arrives to the Cartier Los Angeles Party to launch the Panthere de Cartier Watch Collection, held at Milk Studios in Los Angeles, California, Friday, May 5, 2017. (
![Katie Holmes, Rooney Mara & Sienna Miller Get Glam for Cartier Fifth Avenue Grand Reopening!: Photo 3752217 | 2016 New York Fashion Week September, David Burtka, Edward Norton, Ellie Goulding, Hannah Bronfman, Katie Holmes, Rooney Mara & Sienna Miller Get Glam for Cartier Fifth Avenue Grand Reopening!: Photo 3752217 | 2016 New York Fashion Week September, David Burtka, Edward Norton, Ellie Goulding, Hannah Bronfman,](https://cdn.justjared.com/wp-content/uploads/2016/09/holmes-cartiernyf/katie-holmes-rooney-mara-sienna-miller-get-glam-for-cartier-fifth-avenue-grand-reopening-01.jpg)
Katie Holmes, Rooney Mara & Sienna Miller Get Glam for Cartier Fifth Avenue Grand Reopening!: Photo 3752217 | 2016 New York Fashion Week September, David Burtka, Edward Norton, Ellie Goulding, Hannah Bronfman,
![Sienna Miller wearing Cartier jewelry arrives to the Cartier Los Angeles Party to launch the Panthere de Cartier Watch Collection, held at Milk Studios in Los Angeles, California, Friday, May 5, 2017. ( Sienna Miller wearing Cartier jewelry arrives to the Cartier Los Angeles Party to launch the Panthere de Cartier Watch Collection, held at Milk Studios in Los Angeles, California, Friday, May 5, 2017. (](https://c8.alamy.com/comp/2ETRAT0/sienna-miller-wearing-cartier-jewelry-arrives-to-the-cartier-los-angeles-party-to-launch-the-panthere-de-cartier-watch-collection-held-at-milk-studios-in-los-angeles-california-friday-may-5-2017-photo-by-jennifer-graylock-please-use-credit-from-credit-field-2ETRAT0.jpg)
Sienna Miller wearing Cartier jewelry arrives to the Cartier Los Angeles Party to launch the Panthere de Cartier Watch Collection, held at Milk Studios in Los Angeles, California, Friday, May 5, 2017. (
![Cartier Pasha minute repeater men's watch sells for CA$64,900 in Miller & Miller's Watches &... - Artwire Press Release from ArtfixDaily.com Cartier Pasha minute repeater men's watch sells for CA$64,900 in Miller & Miller's Watches &... - Artwire Press Release from ArtfixDaily.com](https://www.artfixdaily.com//images/sd/f1/e8/Cartier_Pasha67.jpg)
Cartier Pasha minute repeater men's watch sells for CA$64,900 in Miller & Miller's Watches &... - Artwire Press Release from ArtfixDaily.com
![Katie Holmes, Rooney Mara & Sienna Miller Get Glam for Cartier Fifth Avenue Grand Reopening!: Photo 3752250 | 2016 New York Fashion Week September, David Burtka, Edward Norton, Ellie Goulding, Hannah Bronfman, Katie Holmes, Rooney Mara & Sienna Miller Get Glam for Cartier Fifth Avenue Grand Reopening!: Photo 3752250 | 2016 New York Fashion Week September, David Burtka, Edward Norton, Ellie Goulding, Hannah Bronfman,](https://cdn.justjared.com/wp-content/uploads/2016/09/holmes-cartiernyf/katie-holmes-rooney-mara-sienna-miller-get-glam-for-cartier-fifth-avenue-grand-reopening-34.jpg)