Automatic mechanical movement with column wheel and central winder, Calibre 4401, flyback function, power reserve approx.70 hours, bitting frequency 28800 vph (5Hz), scratch resistant sapphire crystal, octagonal stainless steel case in silver-tone finish, fixed bezel also in silver-tone stainless steel, automatic chronograph with three sub-dials displaying seconds, minutes and hours respectively, analog display for hours, minutes and seconds via central hands, date window located between the 4 and 5 o'clock positions, analog dial featuring silver-tone applied hour markers and luminous indices (silver tone), analog dial also features silver-tone baton hands, minute markers on outer track, screw-down crown, transparent case back allowing view of the automatic movement with approx.367 components and 40 jewels.