Some tachymeter/telemeter/pulsometer watches featured spiral-type “snailed” scales to the dial. With the Chronoscope, Omega opted for a more symmetrical search that includes a handful of concentric circles which include the important scale details when also not materially distracting from core dial legibility. Sinn T50 I have been on a little https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/