Precision takes center stage with the Jazzmaster Skeleton 40 mm, whose blue openwork dial reveals the subtle beauty of the watch’s inner workings. Powered by the H-10-S automatic movement with an 80-hour power reserve and a Nivachron™ balance spring, the Jazzmaster Skeleton is fitted with an intricate stainless steel bracelet, reflecting the ever-evolving craftsmanship and attention to detail that distinguish Hamilton.