Montblanc’s 1858 collection is named for the year in which the legendary watchmaking maison Minerva was founded in Villeret, Switzerland. Renamed Montblanc Manufacture after Montblanc acquired it in 2007, Minerva makes movements for the 1858 watches, which are designed to resemble Minerva chronograph watches of the 1930s. At the SIHH watch salon in  Geneva, Montblanc introduces the first bronze-cased models…