Meanwhile on back of the watch is a Sapphire crystal case-back (the biggest one ever made by Oris) affording a view of the Caliber 400 in all its glory. Also while the date aperture is larger than usual, it gets a subtle black disc. Obviously aside from the new movement, this Aquis Date sets its self apart from standard models with a number of differences the first of which hints that there is something special beating within are the words, 5 days found on the watch’s gradient blue dial. This would explain why the first model, to be equipped with Oris’ new in-house caliber is of course a diver. So the Caliber 400 recorded just one third of the deviation permitted after exposure to more than 11 times the magnetic force. To give you an idea of how remarkable this is the most recent ISO 764 standards for anti-magnetic watches requires them to qualify as such with an accuracy to within 30 seconds per day after exposure to just 200 Gauss. 400 was rigorously tested in this instance by the renowned Laboratoire Dubois, where it deviated by less than 10 seconds per day after exposure to 2,250 Gauss.
400 has at its disposal, is its exceptional level of anti-magnetic-resistance thanks to its use of non-magnetic materials some 30 non-ferrous and anti-magnetic components were used, including a Silicon escape wheel and anchor.Īs you might expect with a movement of this caliber (yeah I know), the Cal. Oris propels their humble Aquis Date to the next level and beyond with their new in-house automatic movement, the Caliber 400, which boasts magnetic-resistance, a power reserve of five-days and a 10-year warranty!Įngineered from the ground up, one of the most pertinent features (at least as far as diving is concerned) that the Cal.
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