Oris Caliber 400

The Oris caliber 400 is an automatic watch movement with a date. It has 21 jewels with a beat rate of 28,800, 4Hz. The calibre 400 has a power reserve of 120 hours (5 days) thanks to a twin-barrel design. Oris claims that the accuracy of this movement is rated at an average of -3/+5 seconds per day. The recommended service interval on the 400 is 10 years.

Macro Gallery:

Dial Side:

Video:

Watches with this movement:

The Oris cal. 400 is found in the ProPilot

On March 27, 2023, Oris introduced a ProPilot X Kermit special edition with a lime green dial and a Kermit the Frog emoji on that shows up on the first of every month. Although this model has a unique datewheel, they did not issue a unique caliber number and still refer to it as caliber 400.

Additional Resources:

• Oris official cal. 400 page

Note: This caliber listing is still being updated, but feel free to start discussions on it in the comments below…