With its automatic Panerai P.9000 movement, its Luminor 1950 case in Panerai Composite and its strict adherence to the functional and aesthetic codes which make every Panerai watch unique, the Luminor Composite Marina 1950 3 Days Automatic - 44mm is a classic example of Panerai's tradition for innovation and quality. The Luminor 1950 case and the bridge protecting the winding crown are executed in Panerai Composite, the synthetic ceramic, used for the first time in watch making by Panerai. The Composite is created by an electro-chemical process involving the transformation of aluminium, and is lighter than ceramic, but harder and more resistant than steel.