Some tachymeter/telemeter/pulsometer watches featured spiral-model “snailed” scales to the dial. For that Chronoscope, Omega opted for a more symmetrical appear that includes a number of concentric circles that come with the significant scale information and facts when also not materially distracting from core dial legibility. Like the ref. 6536 earlier https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/