There are plenty of less precise time measurement instruments than a movado. Despite the lack of markings, it's pretty darn precise. You can certainly tell when 12, 3, 9 and 6 oclock are. You can certainly tell the half intervals between, and the quarter intevals between that, and so on. Just because the markings are not there doesn't mean you can tell the time down to the minute on a movado. :-) To the second, definitely not, but it works.

Calvin