Why is the fact that important? If a unidirectional bezel is knocked and unintentionally moved on a dive, it can only Screen a longer underwater time. That means the wearer will overestimate as opposed to undervalue immersion time, and in scenarios that demand decompression stops, this can be a make-it-or-split-it https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/