Some tachymeter/telemeter/pulsometer watches featured spiral-design “snailed” scales to the dial. With the Chronoscope, Omega opted for a more symmetrical glance that encompasses a handful of concentric circles which include the essential scale info whilst also not materially distracting from Main dial legibility. Age and Rarity: Vintage or confined version Rolex https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/