Montblanc Writing Instrument Meisterstuck Solitaire Blue Hour Midsize Ballpoint Pen 112891. Montblanc Meisterstück Blue Hour collection is inspired by the magical hour between daylight and night - the Blue Hour – when the city lights sparkle across the skyline as the sun sets. The luxury ballpoint features a cap and barrel with engraved hexagon pattern covered by translucent deep blue lacquer. The cap is crowned by the iconic white Montblanc emblem inlaid and three rings embossed with the Montblanc brand name. Dimensions: 144.7 x 14.1 mm.