More precisely, CAZ101AK.BA0842 is part of a special-edition collaboration with Red Bull Racing — which gives the watch a sporty, motorsport-inspired identity. Case diameter: 43.0 mm — fairly large and sporty. Case material: Stainless steel; bezel is steel + aluminium. Dial: Blue sunray-brushed dial (racing-blue, typical of the Red Bull / Formula 1 colour-theme) with chronograph subdials and date function. Movement: Quartz chronograph Bracelet: Stainless steel bracelet 19 cm with watch folding clasp with push-buttons.