Complete set, IWC, Portofino series, model: IW391031, white dial with gold hands • Case: Stainless steel, diameter 42mm, thickness 13.6mm • Dial: Silver-white dial with silver plating, rose gold hour markers, dual display of day and date; Chronograph three-eye layout: 12-hour chronograph dial, 60-second small seconds dial, 12-hour chronograph hour dial; Arched double-sided anti-reflective sapphire crystal • Movement: Cal.79320 automatic chronograph movement, 28,800 frequency, 25 jewels, 44-hour power reserve, Geneva waves + pearl finishing decoration, chronograph can count minutes / seconds • Function: Chronograph + dual display of day and date; There are two chronograph buttons on the right side, and the crown is used to adjust the time and date.