Montblanc Watch 1858 Geosphere. 125565. In celebration of the 160th anniversary of Minerva, a foundation dedicated to classic fine watchmaking now owned by Montblanc, the Montblanc 1858 Geosphere watch collection delivers a series of professional-grade, innovative automatic winding watches with Swiss made movements. This breathtaking blue Montblanc 1858 Geosphere watch is also dedicated to the Seven Summits Challenge, the holy grail of climbers with an icy aesthetic inspired by glaciers, ice, and snowy mountain environments. The smoky blue dial is adorned with red dots on two turning globes to mark the world’s seven summits while the case back is engraved with the image of a compass, two crossed ice pickaxes and the emblematic Mont Blanc mountain. Named the Montblanc Geosphere for a reason, this stunning men’s watch is home to one of the brand’s most coveted manufacture movements developed by the Montblanc watchmakers in Villeret. The automatic winding MB 29.25 calibre provides a world time complication on two northern and southern hemisphere globes, a 24 hour scale, day and night indication, dual time function and a handy date window at 3 o’clock. This unique combination of complications provides an intuitive way of appreciating the different time zones further aided by SuperLumiNova on the central hands and numerals. The 42mm lightweight titanium case of the Montblanc 1858 Geosphere watch is completed by a blue bidirectional bezel, domed sapphire crystal glass with double anti-reflective coating and a fluted titanium crown to assist in a 100 metre water resistant rating.