3592.50.00 IRef

The Speedmaster Professional Apollo XI 25th Anniversary ref. 3592.50.00, introduced in 1994, is a 999-piece limited edition for Italy marking 25 years of Apollo XI. It served as the base for the later 3592.50.00 / 3572.50.00, and features a see-through caseback engraved with 'APOLLO XI' and 'XXV.' It came with a commemorative coin and special box, with the individual number engraved on the caseband.