The stone-set bezel supplies the bright perimeter, while rainbow accents sit within the skeleton chronograph dial. Titanium gives those details a cool neutral base; black rubber below the lugs limits the colour to the watch head. The configuration is more expressive than plain titanium but does not rely on a warm-metal case.
The King Gold 441.OX.5181.RX Big Bang Unico is the useful nearby choice: The plain King Gold Unico uses warm case colour; titanium and rainbow accents give this version a cooler, more playful focus.
The rainbow accents and stone-set bezel belong in an evening rotation, with the titanium case providing enough restraint to keep the colour story precise.