Oris promises 120 hour of power reserve with its Calibre 400


What makes a great mechanical movement? Accuracy, of course, a healthy power reserve and reliability would be top three on my list.

Oris appears to think the same way, because a new automatic in house movement, the Calibre 400, excels on all three fronts.

First, it has a five day power reserve — 120 hours — thanks to a twin barrel architecture with extended mainsprings.

On the accuracy front, it is rated at -3/+5 seconds a day, which would pass COSC’s standard. This is, in part, achieved by using 30 non-ferrous and anti-magnetic components, including a silicon escape wheel and a silicon anchor.

Its reliability will only be proven in time, but Oris is so confident it has given the Calibre 400 a 10-year warranty and says it will only need to be serviced once every decade.

The movement has been unveiled this week, and will be used in an Oris watch for the first time at the end of this month (the watch is currently under embargo).

“This is the Oris way of doing things,’ says Oris co-CEO Rolf Studer. “We think a bit harder and come up with sober solutions that mean we can make a watch for people in love with watches, and not only for the privileged few. Calibre
400 isn’t just another mechanical watch movement – it’s a movement that gives answers to the questions of our time. More than that, it serves our customers,” he adds.

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