The Calibre 400 is equipped with twin barrels, each long enough to store two-and-a-half days power, created because Oris’ engineers realise that most people do not wear the same watch each day, conveying the brands dedication toward its clients. High levels of functionality are an ongoing theme with this luxury timepiece, the Calibre 400 is water-resistant at up to 300 metres. Functionality-Plain 3-Hand Movement-Automatic