1967 Omega 120 ref.# 135.027 cal. 601 manual wind .... worn by my Dad in Vietnam [2 tours of duty] ... bought at SUBIC NAVAL BASE The Republic of the Philippines in 1967 .... 1970 my Dad brought it to Omega Service center he wanted to see if he could have the hand set replaced with better visibility both day and night as he was in the Jungle / in the field ... the technician took the hour and minute hands from a 1960's Omega Geneve and the second sweep hand from a 1960's Omega 300 ... the result is what u see ... i have had the crystal replaced in 1989 by omega as well ... I have tried to maintain and care for this watch as it was my fathers, it is also pressure tested to it's dive depth rating ... all service maintenance on this watch has been done thru Omega only and has only 2 original owners ... my Dad [deceased] and myself ...