«Marius Meylan (the then CEO of Omega) came to me one day. He told me that the day before he had been to Biel, where they had given him the task of making a chronograph caliber Ø27 mm. It had to be as flat as possible, with separate subsidiary dials for the 30 minutes and the 12 hours». With these words Albert Piguet recalled the birth, in the years between 1940 and 1941, of one of the most important calibers of modern watchmaking, the Lemania 27CHR C12 (which later became ...