Vintage Omega Speedmaster Professional Pre-Moon Wristwatch - Ref 861

A vintage Omega Speedmaster Pofessional Pre-Moon - manual wind - calibre 861 with rare original 1039 stainless steel band and Pre-Moon case back - one owner, all original parts - second hand retouched - serviced and guaranteed - boxed in later Omega Speedmaster box - 1968-69 Switzerland