Panerai Luminor Yachts Challenge - 44mm - Polished Steel - Black Dial - PAM0065344mm AISI 316L polished steel case, polished steel bezel, black dial with luminous arabic numerals, chronograph counter at 3 o'clock, small seconds at 9 o'clock and central chronograph seconds and minute hands, P. 9100 calibre automatic movement with hours, minutes, small seconds, date, chronograph flyback, seconds reset, approximately 3 days of power reserve, dark brown scamosciato strap with beige stitching. Water resistant to 10 bar (~100 metres).