Last October, Swiss watchmaker Oris launched its Cal. 400 in-house movement in the Aquis range (see our review of the 43.5-mm Aquis Date here). Today, the brand has unveiled a slightly smaller Aquis model with the new movement, the new Aquis Date Calibre 400 with a diameter of 41.5 mm.
It uses the same case design as previous Aquis Date models, while containing, as its name implies, the updated in-house automatic movement.
The brand’s latest diver’s watch is available with either a blue (Ref. 400 7769 4135), anthracite (Ref. 400 7769 4154) or green dial (Ref. 400 7769 4157), all with matching ceramic inserts for the bezel.
![](https://www.watchtime.com/wp-content/uploads/2021/06/Oris_Cal_400_Aquis_41_5_Variants_2021-1024x576.jpg)
The Oris Caliber 400 is regulated to -3/+5 seconds a day and features non-ferrous alloys, 120-hour (or 5-day) power reserve (via twin barrels), and a 10-year extended warranty and service recommendation. The movement is protected via a sapphire caseback, which assists in providing this diver’s watch with a 300-meter water resistance.
“Oris engineered the Calibre 400 Series using more than 30 non-ferrous and anti-magnetic components, including a silicon escape wheel and a silicon anchor. In testing by the renowned Laboratoire Dubois, Calibre 400 deviated by less than 10 seconds a day after exposure to 2,250 gauss.”
Oris
The new Aquis Date Calibre 400 41.5 mm is available from June 2021, with the brand set to retail the model at $3,500 on a steel bracelet, and $3,300 on a rubber strap. Both are equipped with the brand’s own “Quick Strap Change” technology, the folding clasp with side push buttons has an integrated dive extension.
Hands-On Photos:
To learn more, visit Oris, here.