Oris

Oris is one of a small handful of Swiss watch brands that makes only
mechanical watches. A mechanical watch is a thing of beauty, designed
according to principles that have been around for generations and will
continue long into the future. Oris is constantly striving to make better
watches that offer beautiful, innovative functions and advanced
performance levels. For example, the in-house developed Calibre 400
Series of Swiss Made automatics promises a five-day power reserve,
anti-magnetism and a 10-year warranty and 10-year recommended
service intervals.