The Meisterstück Solitaire Doué Blue Hour Classique introduces itself as a precious.. blue lacquered Solitaire ballpoint pen with platinum-coated fittings. The magical hour between daylight and night - the Blue Hour - creates a smooth contrast and breathtaking mood.. which served as design inspiration. This blue hour ballpoint pen utilizes a twist mechanism and comes in its own Montblanc gift box. The cap and clip with individual serial number are platinum-coated to perfectly support the striking look of the barrel. The hexagon pattern on the blue barrel reflects the refraction of lights and night traffic in urban cities.