The Oris Calibre 403 shares the same base architecture and same high performance as our in-house Calibre 400 automatic – a five-day power reserve, elevated levels of anti-magnetism and a 10-year warranty. Added to these features are a small seconds at 6 o’clock and the famous pointer date function. It’s a class-leading movement created for the modern world, telling a much-loved story.

Oris Calibre 400 is an automatic movement with a five-day power reserve, elevated levels of anti-magnetism, 10-year recommended service intervals and a 10-year warranty.

This movement combines a 10-day power reserve, Oris’s patented non-linear power reserve indicator, a date indication and, for the first time, a 24-hour second time zone with half-hour indication. No other mechanical watch in Swiss watchmaking combines these functions in a single watch.