Goldtech-tone plated 316L steel brings warmth without changing the case architecture. The leather strap and matching gold-tone buckle carry that warmth down the wrist, while the matte dial prevents the watch from looking over-reflective. This combination is more at home with a jacket than a technical rubber strap would be, but it still has enough visual structure to avoid becoming a generic dress watch.
A white dial can make warm plating look brighter, yet the matte surface here keeps the effect measured. The strap brings another soft texture into the composition, and the Due's shorter span prevents the case from dominating a tailored sleeve. This is a more specific decision than simply buying a gold-tone watch: the crown bridge and large hour shapes still make it Panerai. The smaller case changes where that design can be worn comfortably. It is the dressier Due without needing a busier dial.