Calibre 400
Oris Calibre 400
Oris Calibre 400

The new standard

Calibre 400 is an entirely new movement, independently conceived by Oris, and sets the new standard for automatic mechanical movements. It has a five-day power reserve (120 hours), is highly resistant to magnetism, and comes with 10-year recommended service intervals and a 10-year warranty.

Oris Calibre 400

Five-day power reserve

Oris’s Calibre 400, designed for intermittent wear, has a five-day power reserve. It uses twin barrels with extended mainsprings, each storing two-and-a-half days of power. It’s highly accurate, to -3/+5 seconds a day, surpassing a chronometer.

Oris Calibre 400

10-year warranty and service

Oris's Calibre 400, with its advanced technologies, offers a 10-year warranty on watches registered at MyOris. Oris also proposes 10-year service intervals on these watches, barring accidental damage or water-resistance checks. This sets a new standard.

Oris Calibre 400

A more stable rotor system

Aiming to pre-empt issues, Oris’s Calibre 400 addresses a common problem in automatic movements: the ball-bearing system. It’s replaced with a low-friction slide bearing system, simplifying the design, increasing efficiency, and reducing wear and tear.

Oris Calibre 400

High resistance to magnetism

Swiss watch movements can magnetise, affecting accuracy. Oris's Calibre 400, engineered with over 30 non-ferrous, anti-magnetic components, is highly anti-magnetic. It deviated less than 10 seconds a day after exposure to 2,250 gauss, surpassing ISO 764 standards.

Technical details


Centre hands for hours, minutes and seconds, date window, instantaneous date, date corrector, fine timing device and stop-second
120 hrs
Power reserve
  • Number
    Oris 400
  • Dimensions
    Ø 30.00 mm, 13 1/4’’’
  • Winding
    Automatic winding
  • Vibrations
    28’800 A/h, 4 Hz