The Arabic numerals are surrounded by a minute scale plus a ¼-second scale over the flange that allows exact readings within the central chronograph seconds hand. IWC’s manufacture Caliber 69355 beats inside the stainless-steel situation, its built-in chronograph functions managed by a column wheel and Outfitted with a flyback functionality. https://www.jowissa.com/de-ch/products/mattes-alligator-leder-uhr-armband-e3-1158