The QUARTZ. KEEP YOUR ENGINE YOUNGER FOR LONGER brand, founded in 2015 (France), from 763 sister brands and 2201 competing brands. QUARTZ. KEEP YOUR ENGINE YOUNGER FOR LONGER's notoriety arose from exemplary management which optimizes product quality and client satisfaction, which in turn generate financial performance, and therefore, stock performance. Being a Popular brand online is assessed based on the evolution of worldwide Web searches over the last five years.