For now, Oris have declined to submit the Calibre 400 to COSC for official chronometer certification, however the Swiss manufacturer have claimed the accuracy of the in-house movement is well within COSC requirements at -3/+5 seconds per day. This means that if you were to buy the new Oris Aquis Date Calibre 400 today, you wouldn’t have to have it serviced until 2031… that’s really quite extraordinary. Oris is so confident in the performance of its Calibre 400 movement that it is offering a 10 year warranty on all Oris watches powered by it. 30 specialised parts of the movement have also been tested to 2,250 gauss and promise a 90% reduction to magnetism. The in-house calibre also impresses with its high levels of anti-magnetism achieved using silicon for its lightweight and lubricant free anchor and escape wheel. Unlike previous Aquis’, self-sufficiency is extended by using a pair of mainspring barrels and a rotor placed on a more low-friction slide bearing system which winds in only one direction. For the first time, the Oris Aquis is equipped with an extended power reserve of up to five days. So, what makes the Oris Calibre 400 movement so extraordinary? First off, it’s power reserve. After unboxing the piece and testing it out ourselves, we can confidently say that expectations have been met and the Calibre 400 movement elevates Oris’ premium divers watch to a whole new level. So of course, we had to get our hands on our own to find out if all the fuss was warranted. Until now, the Oris Aquis Date series has been equipped with other Swiss manufactures such as Sellita and ETA so when the Oris Aquis Calibre 400 watch was announced, there were high expectations for its already robust and reliable divers design to deliver even better performance. Now, Oris have unveiled their latest manufacture powerhouse, the Oris Calibre 400, which extends the durability of the Aquis model it inhabits with better magnetism, a 10 year warranty and an impressive five day power reserve. Following that, we saw several evolutions including the Calibre 111 with date window, the 113 with date, month, week and day and the 114 with its independently adjustable 24 hour hand. Their first, the hand wound Calibre 110, was launched in 2014 and named after its incredible 10 power reserve.
Oris are no strangers to developing their own range of exclusive, in-house movements.
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