Strat-o-timer

The Jack Mason Strat-o-timer puts a traveler’s GMT movement inside a compact sports watch, with an independently adjustable local-hour hand rather than just an extra hand on the dial. That distinction is the reason to get interested: you can change local time on arrival without disturbing the minutes or the home-time indication.

The automatic Miyota 9075 is central to the watch’s character, so don’t confuse it with a “caller” GMT whose independently adjustable hand tracks the second zone instead. When assessing an example, pay attention to the local-hour setting: it should jump cleanly in one-hour steps while the watch keeps running. The rotating 24-hour bezel adds another useful layer, letting you read a further time zone without resetting either hour hand.