Some tachymeter/telemeter/pulsometer watches featured spiral-design and style “snailed” scales about the dial. For your Chronoscope, Omega opted for a far more symmetrical search that includes a couple concentric circles that include the important scale info while also not materially distracting from Main dial legibility. Even Among the many Rolex's portfolio https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/