This model returns to a design that closely resembles the original Mechanical Moon Phase released in 2017. It includes classical Roman numerals on the outer edge of the dial, and OS logo that is only visible depending on the angle of light, positioned in the centre of the dial within the ring separating the two sectors.
A notable update has been made to one of the most original features of this watch: the expression of the moon phase. The moon’s backdrop has been changed to a vibrant, deep-blue-coloured night sky, and the stars appear sharper due to improved brightness. The dual curved sapphire crystal glass with anti-reflective coating on both sides (SAR coating) blocks approximately ninety-nine percent of reflections, providing high visibility from every angle for a clear view of the entire watch dial. It also includes an additional strap made of cordovan, allowing the wearer to enjoy different facets of the watch.