Here’s a real puzzle: What do you make of a watch with a standard case and the word “Automatic” on the face yet a quartz movement inside? And what if the seller of that watch claimed it was a rare prototype with an unknown movement number yet included no photos of the inside of the watch? You’d be skeptical, right? So was I, but I believe this is the real deal: One of two known Omega prototype watch movements running at an amazing 4.2 MHz.