The Arabic numerals are surrounded by a minute scale and a ¼-2nd scale around the flange that allows exact readings within the central chronograph seconds hand. IWC’s manufacture Caliber 69355 beats Within the stainless-steel case, its built-in chronograph capabilities managed by a column wheel and equipped using a flyback function. https://www.jowissa.com/en-ch/pages/faq/can-i-exchange-my-watch-band