Description

Oris Aquis Date Calibre 400 – 41.5mm Case
This Oris Aquis Date Calibre 400 Watch is now available with a smaller, 41.5mm case (the original version launched in 2020 has a 43.5mm case). The Calibre 400 is nothing short of a game changer. With an incredible 10-year warranty, it’s clear that Oris’ Calibre 400 transforms the performance and capability of the Oris Aquis Date watch. Moreover, it also demonstrates the watchmaker’s confidence in manufacturing mechanical calibres to the very highest of Swiss standards. Discover more about the new Calibre 400 here.
Water Resistance, Case, Dial
The deep blue shades of the Oris Aquis Date Calibre 400 Watch reflect the intense cool blue
waters of the ocean, and with an impressive 300-metre water resistance, this model is ready to explore deep below the ocean’s dramatic blue surface. Firstly, the multi-piece stainless steel case is 41.50mm in diameter with a blue ceramic top ring set into the bezel for effectively measuring elapsed time underwater. Secondly, the blue dial has bold, white hour markers. Along with the hands, these are coated in superluminova for legibility in poor light. Additionally, a white minute track ensures the dial is easy to read. Finally, a domed anti-reflective sapphire crystal protects the dial.
Power Reserve, Caseback, Bracelet
The Oris Aquis Date Calibre 400 Watch has an incredible 120 hour power reserve which is very useful for anyone who doesn’t wear their watch every day. Also, it has an easy grip screw-down security crown. Similarly, the see-through sapphire crystal caseback also screws-in and grants a clear view into the performance of the Calibre 400. Finally, the solid stainless steel bracelet has a folding clasp with diving extension facility for wearing over the top of a heavy diving suit.
Oris
Oris have been manufacturing fine watches since 1904 and are one of a small handful of Swiss watch brands that makes only mechanical watches. Built to last and provide a lifetime of enjoyment, this Oris watch is covered by a ten year manufacturer’s warranty.
Automatic winding date movement, Oris 400, 21 jewels
120 hour power reserve
Vibrations: 28’800 A/h, 4 Hz
Hours, minutes, sweep seconds, date
Instantaneous date, date corrector, fine timing device, stop second
Stainless steel case, 41.50mm diameter
Uni-directional turning bezel, blue ceramic top ring with minutes scale
Stainless steel screw-down crown
Blue dial – indices and hands with superluminova
Sapphire crystal, domed on both sides, anti-reflective coating on inside
Stainless steel screwed see-through sapphire glass caseback
Stainless steel bracelet, security folding clasp with extension, Interhorn width: 22mm
Water resistant 30 bar (300m)
Supplied with certificate
Ten Year Manufacturer’s Warranty upon registration with MyOris.

Oris Calibre 400 Series sets the new standard in automatic mechanical watchmaking. Conceived entirely in-house by the independent Swiss watch company’s skilled engineers, it offers elevated levels of anti-magnetism and a five-day power reserve. It comes with a 10-year warranty and 10-year recommended service intervals. Oris offers an extended to 10-year warranty with MyOris sign-up which applies to watch and movement. 10-year recommended service intervals. Five-year recommended water-resistance check.