With a calibre 3135, automatic, self-winding movement, this Rolex Oyster Perpetualhas a staggering power reserve of 48 hours. The dial measures 34mm in diameter with minute markers around the outer rim and an automatically updating date window at the 3 o’clock position. This date window is fitted with a cyclops lens to magnify vision and make the date more legible. The dial is surrounded by a smooth stainless steel fixed bezel. The case, also made of stainless steel has sapphire crystals which prevent the glass from scratches. The bracelet consists of broad three-piece links ending in a folding clasp.