Arnold & Son

The Perpetual Moon 38 Red Gold Blue Aventurine by Arnold & Son celebrates the moon’s powerful influence over the seas. It features a large moon disc on a dial in blue aventurine. The case is made from a solid block of red gold, and the blue aventurine dial, constellated with metallic particles, blends into a celestial vault sculpted from the same glass. The Perpetual Moon 38 Red Gold Blue Aventurine is powered by the A&S1612 calibre, the smallest movement in Arnold & Son’s collection, specifically sized at 29.4 mm to fit the case. This hand-wound movement features a long power reserve of 90 hours.

The standout feature of this watch is its moon phase complication, which is accurate for 122 years. The moon disc, nearly as large as the calibre itself, faithfully reproduces the phases of the moon, occupying the large aperture between 10 and 2 o’clock. This ensures that the moon phase will only deviate by one day after more than a century, maintaining a precise representation of the moon’s influence over the oceans. This is a limited edition of 88 pieces.