Why is the fact critical? If a unidirectional bezel is knocked and unintentionally moved on a dive, it could only Show a longer underwater time. Meaning the wearer will overestimate as opposed to undervalue immersion time, and in scenarios that demand decompression stops, This may be a make-it-or-crack-it factor that https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/