Swiss watchmaker Longines has presented the Flagship Heritage by Kate Winslet, a special edition timepiece that pays homage to the long-time ambassador as well as in support of the Oscar winner's philanthropic organisation, The Golden Hat Foundation. Commenting on the gold watch, in which she handpicked the dial, case and strap, Winslet said: "The style of the model really appealed to me and I instantly fell in love with it. All the profits of the selling of the model are going directly to the Foundation. This project with Longines is helping raise awareness about a particular cause dear to my heart."

Longines Flagship Heritage by Kate Winslet timepiece

Three of the five limited edition pieces will be auctioned with proceeds going directly to the charity that spreads awareness for autism. The auction runs until June 30 on longines.com. Of the remaining two, one will be presented to Winslet while the other will be showcased at the Longines museum in Saint-Imier, Switzerland.

Now, discover Longines' quartz-powered masterpiece: the Conquest V.H.P..