Monochrome Watches
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The New Oris Calibre 400, Developed In-House for Power and Longevity

Oris flexes its muscles with the new automatic Calibre 400.

calendar | ic_dehaze_black_24px By Rebecca Doulton | ic_query_builder_black_24px 3 min read |

Oris unveils its new Calibre 400, a powerful automatic movement with a five-day power reserve and an impressive 10-year warranty. The mandates were for a high-performance and anti-magnetic movement to keep pace with consumers’ lifestyles for longer periods of time. Heralded as the “new standard” in automatic movements by Rolf Studer, Oris’s Co-CEO, the movement promises to deliver.

More power to the people

You could say that Oris is on a roll this 2020. Renowned for its compelling portfolio of affordable dive and sports watches made for everyday wear and tear, the brand has been firing new products in rapid succession this year. What few of us anticipated was the launch of a new movement. However, like all things at Oris, the credo, “things must make sense” underscores the brand’s pragmatic approach to production. Entry-level models are fitted with third-party movements, while higher-end models run on the brand’s Calibre 110, a hand-wound movement conceived in-house by Oris and introduced in 2014 with a whopping 10-day power reserve.

The latest Oris Calibre 400, with its 5-day power reserve, will no doubt be assigned to the brand’s mid-range models. It is, like Calibre 110, a proprietary manufacture movement meaning that although it was developed entirely in-house by COO Beat Fischli and his team, it is produced by a network of suppliers with state-of-the-art industrial techniques. And given its sturdy credentials, it will be a very welcome addition indeed.

5-day power reserve

One of the directives formulated by Beat Fischli and his team was to boost the power reserve. As Fischili points out: “Power reserves have improved in modern mechanical watchmaking. Three days has become normal, but we wanted to do better.“ To extend the autonomy of the watch, Calibre 400 is equipped with twin barrels, each with an extended mainspring capable of storing two-and-a-half days of power.

Oris also revisited the oscillating mass (or rotor) that generates the power for the mainsprings. Conventional rotors sit on a ball-bearing system and swing in both directions. Fischli’s team devised a more reliable system based on a low-friction, slide-bearing system that only winds in one direction, which in turn is less complex and reduces wear and tear over the long run.

Anti-magnetic Silicon Escapement

Another directive for the new movement was to counter the magnetism we encounter in everyday life. Magnetic fields have a direct effect on the hairspring causing the watch to gain or lose time or to come to a grinding halt. Using silicon for the anchor and escape wheel, along with non-ferrous material for the axes that hold the balance wheel, escape wheel and anchor, the impact of magnetic fields on Calibre 400 is reduced by more than 90% compared to standard Swiss mechanical movements. During tests undertaken by the Laboratoire Dubois, Calibre 400 deviated by less than 10 seconds a day after exposure to 2,250 gauss.

10-Year Warranty

Oris backs its new Calibre 400 with a 10-year warranty and 10-year recommended service intervals, two-fold that offered by many other reputed watch brands.

Any guesses as to which Oris watch will be the proud bearer of the new Calibre 400? We’ll certainly know the answer soon. More information at

11 responses

  1. Wow this is great news I can’t wait to find out which model has these new features!!!

  2. “What few of us anticipated was the launch of a new movement.”
    Really? I’ve been thinking for more than two years about that. It’s quite obviously where Oris needed to go since they have been reliant (and limited in terms of power reserve) by the ETAs.
    Can’t wait for the first watches!

  3. This is fantastic news and congrats Oris! I hope they can get COSC for this movement so we can get the trifecta of power, longevity *and* accuracy.

  4. But no amount of longer power reserve is far more important than on the watch accuracy. What’s the use of 5 days power reserve if your watch isn’t COSC certified.

  5. Please make your Oris Pointer Date 36mm in COSC certified, much better if you improve or modified it from -4/+6 COSC to -2/+3 seconds per day.

  6. I have a Oris 65, it’s a great watch however I would like to see the new caliber in the Oris 65 series including the 1917 pilot watch. Oris makes some of the most beautiful watch dials with bubble type crystals.

  7. While I don’t require COSC certification, I hope Oris regulate watches with this movement to COSC standards. I would also love them to produce a non date version in an Aquis.

  8. The Oris Caliber 110 is not an automatic it’s a 10 day manual wind.

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