Limited Edition of 1858 Pieces. Montblanc Watch 1858 Geosphere Limited Edition MB128504. Inspired by the original Minerva watches from the 1920’s , the Montblanc 1858 Geosphere watch collection delivers a series of professional-grade, innovative automatic winding watches with Swiss made movements. This breathtaking bronze Montblanc 1858 Geosphere Limited Edition watch is also dedicated to the Seven Summits Challenge, the holy grail of climbers with an warm golden bronze aesthetic inspired the colours of deserts. The smoky brown biege dial is adorned with two turning globes marked by the world’s seven summits while the case back is engraved with the illustration of the Gobi Desert\'s famous Flaming Cliffs. 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 bronze case of the Montblanc 1858 Geosphere watch will change colour over time and is completed by a brown ceramic 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.