The Arabic Numerals are surrounded by a moment scale plus a ¼-2nd scale to the flange that allows precise readings about the central chronograph seconds hand. IWC’s manufacture Caliber 69355 beats inside the stainless steel case, its built-in chronograph capabilities controlled by a column wheel and equipped using a flyback https://www.jowissa.com/fr/blogs/blog/the-timeless-appeal-of-swiss-watches-style-meets-precision