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#Oris calibre 400 accuracy plus
The automatic Calibre 400’s functions include centre hands for hours, minutes, seconds, plus a date, date corrector, fine timing device and stop-seconds. Therefore, it is unsurprising that the Calibre 400 deviated by less than 10 seconds a day after exposure to 2,250 gauss at the Laboratoire Dubois. Oris’ watchmakers made this a focus throughout production, and as a result, the calibre boasts more than 30 anti-magnetic components. Focus on Anti-MagnetismĪdditionally, the movement is highly anti-magnetic – not least thanks to the new silicon escapement and silicon anchor. Furthermore, the Calibre 400 retains 85 per cent of the energy transferred from the mainspring, while “normal” automatic calibres retain roughly 70 percent. Ultimately, this is possible thanks to the calibre’s twin barrels, both of which house an extended mainspring – each of which is long enough to store two-and-a-half days of power. An Impressive Power Reserveįurthermore, the movement has an impressive five-day power reserve (in other words, 120 hours). As well as improving its durability, this also improves reliability. The brand has alternatively opted for a low-friction slide bearing concept, which only winds in one direction. While a “normal” rotor sits on a ball bearing, winding in both directions, Oris has removed the ball bearing entirely. It also symbolised Oris’ philosophy: to produce “high-quality, Swiss Made mechanical watches with real-world functions at accessible prices.” However, the calibre’s new rotor is also interesting. Furthermore, it was a symbol of the Hölstein-based company’s watchmaking skills, and was trademarked back in 2002. The red rotor was a useful indicator as to whether an Oris watch was genuine. Notably, the Calibre 400 does not feature the brand’s recognisable red rotor.
The other big news is that the watches using the movement will only requires 10-year servicing intervals. Watchmakers at the Swiss horology house based near Basel have created a movement that is highly efficient and highly anti-magnetic. Independent watchmaker Oris is introducing a new calibre, entirely created in-house – the Oris Calibre 400.
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