Perpetual Moon 38 Red Gold welcomes two limited-edition dials. The radiance of 88 pieces in blue aventurine glass and 28 pieces in a warm, sunray-brushed grey joins that of the largest moon phase. Arnold & Son exhibits its mastery of colour, its sense of texture and its taste for materials, telling a nocturnal narrative that brings together the grey of a cliff, the iridescent white of the moon and the almost black blue of a starry sky. Blue aventurine glass and cliff grey. Two new themes take hold of the 38 mm diameter red gold (5N) iteration of Perpetual Moon, giving two sophisticated dials befitting of the precise astronomical moon phase of the A&S1612 calibre. From the outset, Perpetual Moon 38 was destined to become a fully-fledged collection, distinct from its larger 41.5 mm diameter cousin and its more assertive style.