The Arabic numerals are surrounded by a minute scale plus a ¼-next scale about the flange that allows precise readings about the central chronograph seconds hand. IWC’s manufacture Caliber 69355 beats inside the stainless-steel case, its integrated chronograph features managed by a column wheel and equipped having a flyback function. https://www.jowissa.com/de-ch/products/leder-uhrarmband-glaenzend-kroko-e3-1447-m