Some tachymeter/telemeter/pulsometer watches highlighted spiral-style “snailed” scales on the dial. To the Chronoscope, Omega opted for a far more symmetrical search that features a number of concentric circles that come with the crucial scale info although also not materially distracting from core dial legibility. To start with launched in 1953, https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/