Some tachymeter/telemeter/pulsometer watches featured spiral-design “snailed” scales on the dial. For the Chronoscope, Omega opted for a far more symmetrical glimpse that incorporates a couple concentric circles that come with the vital scale details while also not materially distracting from core dial legibility. The advent of the initial Submariner Day, https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/