The “heart of the forest” pulsating effect is produced using an array of microscopic cubes that are positioned in such a way that they reflect light back to the viewer, creating the illusion of a shifting and never-ending view. This novel effect was achieved on the master tooling by using advanced laser engraving technology. Traditional engraving is no longer limited to millimetres—it is now possible to achieve engraved details as small as 0.02 mm.