M2 seven seas cal.Tutima 330 automatic movement 38 hours power reserve,44mm case size 25 jewels with day and date calendar,titanium case and bracelet sandblasted finish,unidirectional rotating bezel,screw down crown and skeleton case back,sapphire anti-glare treated ,water resistance 500mm/1650ft/50atm,black dial with luminous hand and marker,warranty for 2 years.