The Arabic numerals are surrounded by a minute scale and a ¼-second scale within the flange that allows exact readings around the central chronograph seconds hand. IWC’s manufacture Caliber 69355 beats Within the chrome steel scenario, its built-in chronograph functions controlled by a column wheel and equipped with a flyback https://www.jowissa.com/fr-ch/products/tiro-swiss-made-uhr-j4-404-m