Bonhams Cars : Omega. A stainless steel quartz LCD display chronograph wristwatch Omega. Chronographe bracelet en acier à affichage digital mouvement quartz Speedmaster 'Alaska IV', Ref 186.004, Circa 1978
Omega Speedmaster lcd. 186.0005 and 186.0009 | WatchUSeek Watch Forums
1979 Omega Speedmaster Professional LCD Moonwatch – Watch Adoption