The Omega Speedmaster is ubiquitous. Easily one of the most recognizable watches, its black dial, 3, 6, 9 chronograph layout, and tachymeter bezel are so well known and easily understood as the Moonwatch, you could accuse the Speedy of being a bit boring. I say this as a full fledged admirer, fan, and owner of a Speedmaster. It?s a lot of things: history on your wrist, charming to the core, a fantastic value in a landscape of luxury watches that ultimately disappoint. But it?s not a watch I?d ever think of as unusual in a meaningful way, and the run of the mill Speedy Pro is certainly not rare or uncommon by any definition. These things do everything but grow on a tree. 
But since the Speedmaster was introduced in 1957 we?ve seen many, many different variations on the somewhat common theme of a sports chronograph that the Speedy in many ways has defined throughout the decades. And I?m not just talking about the well known variants, like the many limited editions made to commemorate the various Apollo missions, the tech forward ceramic cased Speedmasters with (mostly) automatic movements, and the modern Speedmaster X-33 multi-function quartz pieces. Those are still fairly common, even pedestrian. The weird stuff, though, is out there. If you thought the Speedmaster was just a boring old hand wound chronograph that happened to get to the moon, once upon a time, you might be surprised by some of the legitimately strange Speedys that have come and gone through the years.  ...