During the middle ages, France and Spain (and probably Sicily/Southern Italy) used two numerals: Arabic and Roman. In the end, Arabic numerals gave our (western

During the middle ages, France and Spain (and probably Sicily/Southern Italy) used two numerals: Arabic and Roman. In the end, Arabic numerals gave our (western) current numbers and Romans are mostly kept in titles and names. Some watches still use Roman numerals (XII, III, VI, IX), Swatch specify here that those are Arabic (12, 3, 6, 9).