Oris Unveils The Big Crown Calibre 113 Business Calendar Watch

Oris’ most complex hand-wound movement, now telling you what week you’re in.

By Jovan Krstevski

The Oris Big Crown Calibre 113 is not simply another iteration of a familiar line. It marks the first occasion the brand’s hand-wound Calibre 113 has found a home in the historic Big Crown collection, a series that has been circling wrists since 1938. First shown in the Artelier range back in 2017, the calibre was always technically ambitious, though sometimes overlooked in quieter designs. For 2025, Oris finally installs it into its most iconic pilot’s case.

The 43mm x 13.5mm case is cut from stainless steel, stretching 50.5mm lug to lug. The oversized screw-in crown, once a practical necessity for gloved aviators, still asserts itself. A domed sapphire crystal, treated inside against glare, shelters the dial, while the screwed sapphire back frames the calibre in plain sight.

Would you agree that mint green dial with pink sub-counters is hardly the palette of conservative business calendars? Yet Oris has often zigged when others zagged. A 52 week calendar ring runs around the edge, where a central pointer hand with a pink tip indicates the current week number of the year. Day is shown at twelve, the date rests at six, small seconds sit at nine, while the non-linear power reserve arcs at three to balance the composition.

Beneath it all runs the Calibre 113, a hand-wound engine storing ten days of autonomy in a single oversized barrel, ticking along at 21,600vph. It drives the full business calendar, covering day, date, month and week of the year, all adjusted through the crown. A stop-seconds function and fine-timing device sharpen its practical edge.

The watch settles on a multi-link steel bracelet with in-house folding clasp. It arrives in September 2025, priced at CHF 6,350, covered by a five-year warranty upon MyOris registration.