Some tachymeter/telemeter/pulsometer watches featured spiral-type “snailed” scales about the dial. For your Chronoscope, Omega opted for a more symmetrical appear that features a couple of concentric circles which include the important scale data though also not materially distracting from core dial legibility. Even among the Rolex's portfolio of famous styles, https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/