Panerai Luminor Ref #PAM01109 Serial #OP7318PL0183373 Brushed steel case with a black strap. Fixed polished steel bezel. Black dial with luminous silver-tone hands and index hour markers. Arabic numeral markers appear at the 6 and 12 o'clock positions. Minute markers. Tachymeter markings around the outer rim. Luminescent hands and markers. Chronograph - two sub-dials displaying: 30 minute and small second. Caliber P.9200 automatic movement. Scratch resistant sapphire crystal. Screw down crown. Solid case back. Cushion case shape. Case size: 44 mm. Tang clasp. Water resistant at 100 meters / 330 feet. Functions: chronograph, tachymeter, hour, minute, second.