Montblanc introduces the Montblanc 1858 Split Second Chronograph Limited Edition 18 made out of an exclusive and innovative 18 K gold alloy called Lime Gold. Inspired by a 46 mm Minerva historical military chronograph from the 1930s equipped with the original calibre 19-09CH, the new timepiece features a distinctive gold-colored dial with contrasting green elements and a matching vintage green nubuck calf strap.
The deep golden color of the Montblanc 1858 Split Second Chronograph Limited Edition 18 veers towards a pale yellowy green. The Lime Gold color is made of a special alloy composed of 18 K Gold (Au 750‰), Silver (Ag 238‰) and Iron (Fe 12‰) that provides the distinctive shade.
The gold-colored dial features the luminescent cathedral-shaped hour- and minute-hands, the minuterie, the central split-second hand, the tachymeter and telemeter scales, as well as the historical Montblanc emblem at 12 o’clock. The Arabic numerals are fully made of Super-LumiNova. The glass above the dial has an anti-magnetized treatment on the inside top sapphire crystal.
The Montblanc 1858 Split Second Chronograph Limited Edition 18 features a telemeter scale that runs around the dial. A telemeter allows to measure the distance of a phenomenon which is both visible and audible, like the lightning and thunder in a storm. The watch also has a tachymeter (base 1000) at the centre of the dial in a colimaçon (snail shape) which lets the user measure a length of time of up to three minutes.
The case back exhibits the Manufacture monopusher chronograph calibre MB M16.31 that amazes with its handcrafted traditional finishings such as Côtes de Genève, inner angles, circular graining and bevelling. For this limited edition, the plates and bridges are made in Maillechort (German-silver) plated in 18 K gold matching the 18 K Lime Gold case and the dial. The calibre has two column wheels for the chronograph and the split complication, horizontal coupling and a power reserve of 50 hours. It is composed of the V-shape bridge and a large balance wheel with 18 screws beating at the frequency of 2.5 Hz / 18,000 A/H.