In other words, when your watch gets exposed to magnetic fields during your daily activities, there will be no impact on its accuracy. With these developments in place, the Oris Calibre 400 can withstand magnet fields of up to 2,250 gauss. Additionally, there are 30 other movement parts made of non-ferrous or non-magnetic alloys to ensure anti-magnetism. Oris selected silicon for the anchor and escape wheel of the Calibre 400, and non-ferrous metals for the axes of the balance wheel, escape wheel, and anchor. But a more thorough solution would be to create the movement itself from non-magnetic alloys.

The traditional solution is to house the movement in a soft iron case within the watch case itself (known as a faraday cage).

Ergo: Oris thought it needed a movement that can withstand strong magnetic fields. All these devices have a magnetic field, which influences the performance of a mechanical watch negatively. Computers, iPhone cases, other electronic equipment, we are surrounded by them in our daily lives. The watch manufacturer in Hölstein, not too far away from Basel, realized that today’s consumer is exposed to different things than, let’s say, 30 years ago. Oris made its Calibre 400 movement available to us, to have a closer look at and take some images of it.Īccording to Oris, this Calibre 400 was conceived five years ago.

Not one with a specific complication as we’ve seen in the Atelier collection, but a no-nonsense three-hander (with a date). But this time, Oris shows us a totally different caliber. The brand’s back-catalog an already boast the Calibre 111, 112, and 113 movements hailing from the Atelier collection. It is not the first time Oris has come up with an in-house developed movement. Big news from a small Swiss village! Oris proudly introduces its in-house caliber 400.

Oris calibre 400