Does anyone have more info on the ISA 9500-1010 movement? This is an interesting quartz movement that I didn't know existed until very recently. It's in the Smiths Seafire PRS-37.
Of course, now I'm on the hunt for other watches that utilize the movement.

The second hand ticks 4 times per second and you set the watch by rotating the crown forward or backward, but not in the traditional sense. Here's a video (of the aforementioned PRS-37) with a better explanation and demonstration.




Any other watches using this movement?