Rolex Oyster Perpetual 36 Unisex Watch 126000-0005. This 36mm no date model features an Oystersteel case with a smooth domed bezel and an Oyster bracelet. The green dial has luminescent hands and index hour markers. It is powered by the Rolex Caliber 3230 self-winding automatic COSC Superlative Chronometer certified movement with a 70-hour power reserve.