With Luminor Due Goldtech, Panerai joins the phenomenon of brand-exclusive gold alloys, which has from other brands previously given us alluring metal cocktails like Everose and honey gold. Panerai’s 18ct offering contains a hefty serving of copper for a rich, saturated, sunset-evoking colour, as well as platinum. The platinum works as a chemical stabiliser, preventing any change of colour over a long period of time because of oxidation. Luminor Due was released in 2016. Luminor refers to the self-luminous substance patented by the company in 1949, and there was a new case bearing the illustrious name from 1950. Why Panerai fanatic Fong Wing Ngai keeps his timepieces in a museum The Luminor Due Goldtech is a dressier, slimmer upgrade of the Luminor Due – supplied exclusively to the Italian Navy from 1950. It features the brand’s Safety Lock crown protection, which was patented in 1956. The new Luminor Due 42mm is equipped with the P.900 automatic movement powered by an off-centred micro rotor. The white-dial version (PAM01042) features a white dial with luminous printed Arabic, luminous numerals, whereas the black version (PAM01041) is a sandwich dial with cut-out numerals, a concept that has been used by Panerai since the 1930s. Want more stories like this? Sign up here . Follow STYLE on Facebook , Instagram , YouTube and Twitter .