I HAVE REDUCED THE PRICE FOR QUICK SALE...$$$  THIS IS A NICE MENS  CROTON WATERPROOF/ SHOCK RESISTANT  NIVADA GRECHEN CHRONOGRAPH AVIATOR SEA DIVER SWISS WATCH..HAS WHITE DIAL AND GREEN SPIKE HOUR HANDS.VINTAGE FROM THE 1960S.THE BAND IS BLACK LEATHER. NOW THAT I INSPECT CLOSER,THE BLACK DIAL WAS REMOVED AT ONE TIME FOR A CUFF BAND.AND ISN'T PRESENT,ONE CAN POSSIBLY,OR A SIMILAR BENZEL.CAN BE OBTAINED AND AFFIXED PROPERLY,DOESN'T HURT THE WATCHES FUNCTION ABILITY.THE WATCH IS A WIND UP AND DOES RUN AND RUNS ACCURATELY..I CANT SEEM TO TAKE THE BACK OFF.I WAS TOLD THAT THESE WATCHES WERE SEALED FOR WATER RESISTANT DIVING USE? THAT'S HOW THEY CAME OUT NEW...ITS UP TO YOU IF YOU WANT TO SERVICE/CLEAN,SINCE I DONT KNOW WHEN THAT WAS LAST DONE...SELLING AS IS,THE WAY IT IS.....PLEASE ASK QUESTIONS.......THE PREVIOUS OWNER WAS FROM CANADA AND HAS PASSED AWAY.THIS HAS BEEN OLD PAWN AND ESTATE FIND....THANKS FOR LOOKING,...COMES FROM A SMOKE FREE HOME...INTERNATIONAL BIDDERS MUST USE EBAY INTERNATIONAL CHECKOUT....