This deep sea tug was built in 1967 in England. Made entirely of welded steel and powered with 2 propellers and 2 engines. A first set of works, which ended in spring 2005, has enabled the Mastiff to obtain from RINa "Certificate of Class for pleasure craft" shows the maximum score 100-A.1.1. equaling the same score at the end of the restyling concluded in June 2010. The Mastiff retains its retro charm, but without renouncing to the comforts of modern technology and an avant-garde design, equipment for diving and water games, fishing, HD TV, Hometheatre, Playstation, Hi-Fi and the Internet, satellite telecommunications.