311.63.44.51.04.001Ref

The Speedmaster is a classic in the watch world. The Speedmaster Moonwatch Co-Axial draws on the classic look of the Speedmaster Professional, yet is powered by a larger case and state-of-the-art automatic movement with co-axial escapement. This version (reference 311.63.44.51.04.001) has an Orange-gold case, a white dial and bezel, and a white alligator strap. This version was never put into production, as far as we know.