Some tachymeter/telemeter/pulsometer watches showcased spiral-style “snailed” scales around the dial. For the Chronoscope, Omega opted for a more symmetrical search that includes a handful of concentric circles that include the critical scale info when also not materially distracting from Main dial legibility. Provide is fairly mounted. Several of such watches https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/