Introduced in 2019, the Pioneer Perpetual Calendar MD features a stainless steel case of 42.8mm housing a hand-wound movement with perpetual calendar. Both the date as wel as the month are displayed through windows on the front, whilst the leap year cycle is visible on the movement-side.The leaf-shaped hands are partially skeletonised and filled with Superluminova®, as are the hour marker dots on the flange.