HM Perpetual Moon is a superb example of Arnold & Son's technical and artistic excellence. The exceptional perpetual moonphase indication of this watch is a marvel in many ways. This large moon is one of the most visually stunning recreations, the 29 mm.moonphase disc, which runs from 10 to 2 o'clock on the dial, reveals one of the largest moons on the market. The watch also has a unique easy-to-set feature thanks to the ingenious addition of a second moon indication installed at the back of the movement. It is available in either red gold or stainless steel, with a total of four dial variations.