Why is always that significant? If a unidirectional bezel is knocked and accidentally moved on a dive, it may only Screen an extended underwater time. That means the wearer will overestimate as opposed to underestimate immersion time, and in situations that require decompression stops, this can be a make-it-or-break-it factor https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/