Why is usually that significant? If a unidirectional bezel is knocked and accidentally moved on the dive, it can only Show an extended underwater time. Meaning the wearer will overestimate as opposed to undervalue immersion time, As well as in scenarios that need decompression stops, This may be a make-it-or-crack-it https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/