Montblanc Watch Boheme Manufacture Perpetual Calendar 123866.  Montblanc have mastered the art of luxury watchmaking, both through their exquisite aesthetic artistry and the creation of their own in-house mechanical movements. The Montblanc Boheme Manufacture Perpetual Calendar proves this yet again with a breathtaking diamond and guilloche decorated design and the MB 29.22 Calibre automatic winding movement housed within. The manufacture movement took three years to develop and delivers one of the industry’s most coveted complications, the perpetual calendar. On the crisp silver-white dial, you are greeted with indicators for hours, minutes, day, date, month, moonphase, leap year and a 24-hour indicator.   As if the movement of the Montblanc Boheme Manufacture Perpetual Calendar wasn’t enough, its exterior is a sight to behold. The polished stainless steel case features a bezel adorned with 58 Top Wesselton diamonds totalling 1.39 carats and a matching diamond set crown at 3 o’clock. The case also boasts scratch resistant domed sapphire crystal glass treated with anti-reflective coating, a water resistance of 30 metres and a grey alligator-skin leather strap equipped with an interchangeable mechanism so you can easily swap the band around depending on the occasion. At the centre, the Montblanc Boheme Manufacture Perpetual Calendar watch shows off a glamourous silver-white guilloche dial adorned with leaf-shaped hands, floral Arabic numerals, a minute scales of raised dots and an internal hours ring, all beautifully complimenting of the perpetual calendar complications.