HI EVERYONE

MERRY CHRISTMAS AND HAPPY NEW YEAR ,I M A MILITARY WATCH COLLECTOR, BUT SOMEHOW I COME ACROSS
TO THIS BEAUTY AND I COULDN T RESIST ..."PULSAR CALCULATOR"!!!!ALL THE WATCH FUNCTION WORKS ALL THE SEGMENT ARE PRESENT BUT... WHEN I PRESS THE 0 FOR THE CALCULATOR MODE THAT'S WHAT APPEARS ON THE SCREEN
0.0.:0.0
SOMETIME HAVE A DOT AT LEFT END AND THE SAME 4 ZERO AT MIDDLE OF THE SCREEN,SOME OTHER TIME HAVE THE 0 AT RIGHT END AND RUNNING TO THE LEFT END OF THE SCREEN,LIKE WOULD BE RESETTING,SOMETIME DOES NOTHING ???????BUT ONE THINKS FOR SURE DOES NOT GO ON CALCULATOR MODE!!!THE SCREEN IS BRIGHT RED WHEN IS ON??MY QUESTION IS . . PLEASE HELP !!IS ANYONE CAN TELL ME WHAT TO DO??IS REPAIRABLE ??EASY FIX??JUST A CLEAN??OR IF IS A RESETTING FUNCTION FOR THE CALCULATOR TO FOLLOW ??WILL APPRECIATE ANY HELP OR SUGGESTION FOR REPAIRING THE WATCH!!I THANKS FOR NOW MY BEST REGARD ANDREA!!!! I THINK I M IN LOVE FOR LED WATCHES...

OMG MY WIFE IS GOING TO KILL ME!!