You are free to believe anything, but that does not make it a universal truth. Apart from your little experiment, you have been unable so far to offer any corroborating evidence to validate your theory. And even if you were correct in stating that automatics don't work as well in space as they do on Earth, it does not necessarily mean that the activities of the average astronaut would not be sufficient to keep the watch's power reserve to its maximum level over the course of a day.

The fact remains that Colonel Pogue went on record to say that the automatic winding of his cal. 6139 Seiko worked perfectly in space. And neither Reinhard Furrer nor Klaus Dietrich Flade have suggested that their respective Sinn 142 had any problem keeping a wind. Finally, wouldn't it make sense for the Russian Space Agency to request a manual wind watch for their astronauts if automatic winding was a useless feature? Let's not forget that Russians have a very pragmatic way of looking at space travel: while NASA was investing millions in developing a pen that would write in space, Russians simply elected to use pencils...