The ultimate version of IWC Portuguese series IW390704 OB2 produced by famous craftsman Swiss watch, diameter 45x14.5, equipped with Cal.89361 chronograph movement, super luminous. Ultimate modification 1. Double-sided raised sapphire crystal glass 2. Case polished with CNC top technology and multiple processes , the lines are clear and smooth 3. The upgraded imported rubber strap has no peculiar smell, does not stick to dust and does not turn white 4. The upgraded buckle is the original earth long buckle 5. The gloss details of the literal calibration are closer to the genuine product. It is made with care only to rival the famous counter craftsman Rui Exquisite watches are recommended for men's multi-functional mechanical watches. The famous craftsman Ruibiao carefully creates ultra-realistic photo shoots for you. IWC