‘71 Speedy Pro, step dial, caliber 861. Not sure when the watch was manufactured, but the 1175/640 bracelet is stamped 1-71, which would have coincided roughly with the same timeframe as the Apollo 14 mission (1/31/71 to 2/9/71). Not a model that was on the lunar surface, but kinda cool to think that it was made when I was watching Walter Cronkite cover the Apollo launches on black and white TV.