Speedmaster. The Speedmaster is legendary for its exploits. Its prestige derives from what it has done and where it has been on the wrist of its wearer (i.e. the spacewalks, the Apollo missions, the man on the moon, etc.), not simply because it was the watch worn by a movie star. And that’s not to knock the Monaco - it is a beautiful and unique looking watch in its own right. But it doesn’t carry the same provenance IMO, because its popularity is derived from the fact that Steve McQueen wore it in Le Mans.