Oris Aquis Date Steel Watch 41.5mm Blue Silver

Oris’s engineers decided to eliminate problems before they occur with the Calibre 400. One of the most frequent issues with automatic mechanical movements concerns the ball-bearing system that allows the free-spinning oscillating weight to rotate. So, they removed the ball bearing altogether and replaced it with a low-friction slide bearing system, which is much less complex and involves far less wear and tear, making it less prone to breakdowns.

The Calibre 400 has a five-day power reserve, so it'll still be running if you’ve not worn your watch between, say, Thursday and Tuesday. It delivers this longer period of use via twin barrels, both of which house an extended mainspring, each long enough to store two-and-a-half days of power. It’s highly accurate, to -3/+5 seconds a day, better than a chronometer.

Additionally, the Calibre 400 is highly antimagnetic, using more than 30 non-ferrous and anti-magnetic components, including a silicon escape wheel and a silicon anchor. This prevents the Swiss watch movement from becoming magnetized when exposed to strong magnetic forces experienced in daily life, ensuring accuracy and reducing the likelihood of it stopping altogether.

Oris has announced the first watch to use this new movement, selecting its cornerstone Aquis series of divers for the task. The new Oris Aquis Date Calibre 400 keeps the classic styling cues of the series intact, while showcasing the new and dynamic movement. The stainless steel screw-in security crown, unidirectional bezel, and ceramic bezel ring with 5-minute scale make it ideal for the sport of diving.

In conclusion, Oris's engineering team has created a new movement that not only addresses common issues with automatic mechanical movements but also provides an extended power reserve, high accuracy, and superior antimagnetic properties. The new Oris Aquis Date Calibre 400 is an exceptional timepiece that reflects Oris's commitment to innovation and reliability.

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