alpina seastrong diver 300 big date chronograph al 372lbbg4fbv6
alpina seastrong diver 300 big date chronograph al 372lbbg4fbv6 movement features frequency 28 800 hjewels 13winding quartzbattery life 48 monthstheme hours minutes seconds big date case features materials stainless steelcrystal scratch resistant sapphire crystaldial black matt dial with applied indexescrown screw inwater resistance 30 atmdiameter 44 mmstrap or bracelet width 22 20 mmstrap black rubber diving strap