The Omega Speedmaster Professional Moonwatch Apollo XI 25th Anniversary ref. 3592.50.00 was introduced in 1994 as a limited edition of 999 pieces for the Italian market to commemorate the 25th anniversary of the Apollo XI mission. It served as the base for the later 3592.50.00 / 3572.50.00. This watch features a see-through caseback engraved with APOLLO XI and XXV. It was delivered with a commemorative coin and a special box. The individual number is engraved on its case band.
