The meteorite’s criss-crossing, jagged geometric structures, which are known as Widmanstätten patterns, reflect the light across a vast surface reminiscent of the Sea of Tranquillity. In no way concealing their depth, the deep matt blue PVD treatment instead subtly reveals them to those who know to look for them. The moon, a sphere formed half from Cacholong opal and half from blue PVD meteorite, reflects the nature of the celestial body. The way these textures catch the light, its rotation controlled by an exclusive complication, makes this an ever-shifting timepiece. All the more so as the opal half of the moon and the subdial are coated with Super-LumiNova, only revealing their blue-green glow – invisible by day – once night falls.