The Oris Aquis Date Calibre 400, reference 01 400 7769 4125-07 4 22 75FC, represents one of the most important evolutions of the Aquis collection, combining Oris' professional diver DNA with the technology of the prestigious Oris 400 in-house Calibre.

The model stands out for its blue dial paired with the original blue rubber strap and the ceramic bezel with a minute scale, creating a perfect balance between sportiness, elegance, and functionality. The 41.5 mm stainless steel case offers a significant yet extremely balanced presence on the wrist, making it a versatile diver for daily use.

The case construction consists of multiple stainless steel parts with a screw-down security crown, a screw-in case back with a sapphire crystal display, and an upper crystal made of sapphire domed on both sides with an internal anti-reflective treatment, ensuring high resistance and legibility in all conditions.

The heart of the watch is the Oris Calibre 400 automatic movement, developed in-house by the Swiss Maison. This calibre offers an extraordinary power reserve of 120 hours (5 days), high resistance to magnetic fields, 21 jewels, a frequency of 28,800 vibrations/hour, and a design aimed at reducing maintenance intervals.

Functions include hours, minutes, central seconds, a date display with instantaneous change, a quick date corrector, fine adjustment, and a stop-seconds function for precise time setting.

With water resistance up to 300 meters (30 ATM), a ceramic bezel, sapphire crystal, and an in-house movement, the Oris Aquis Date Calibre 400 is one of the most interesting Swiss divers in its category, ideal for those seeking build quality, mechanical technology, and great autonomy.