The ST345.0809 was the first Speedmaster Professional to feature a moon phase complication, despite Omega offering moon phase watches since 1947. Out of 2000 movements produced, only 1300 Speedymoon watches were made. Approximately 15% of these models came exclusively with a leather strap, mainly for Mexico and some for Italy. This makes this Speedmaster Moonphase one of around 1100 pieces globally. Omega offered this special reference only from 1985 to 1989.
The ST345.0809 was the first Speedmaster Professional to feature a moon phase complication, despite Omega offering moon phase watches since 1947. Out of 2000 movements produced, only 1300 Speedymoon watches were made. Approximately 15% of these models came exclusively with a leather strap, mainly for Mexico and some for Italy. This makes this Speedmaster Moonphase one of around 1100 pieces globally. Omega offered this special reference only from 1985 to 1989.