A striking feature of the new Arnold & Son HM Perpetual Moon is their biggest moon phase aperture on any of their current collections. Being a member of the Royal Collection this exquisitely crafted piece pays tribute to the watches that were once made for King George III and members of the Royal court by John Arnold in the early part of his life. The sophistication of the HM Perpetual Moon is an example of the technical and artistic excellence that Arnold & Son’s is known for. Seeing this piece for the first time with its rich guilloche moon disc and engraved moon will show you how much detail and craftsmanship was put into this piece. It houses the exclusive Arnold & Son mechanical hand-wound movement, the caliber A&S1512, which was specifically designed for this particular timepiece. An elegant 18-carat gold case combined with the sophisticated movement in this piece really highlights the technical mastery and makes this more than just a timepiece; it makes it a wearable piece of art.