As I've said elsewhere, the Y-M1 has recorded 0s/d in 6 positions on my Timegrapher. (And, yes, it was running at the time.) Discrete, enjoyable to wear & accurate. A great watch.
To live in such a world, if I could choose only 1 of my watches to keep, this reference could very well be the one. I love this watch, one of my better acquisitions.