Omega Caliber 8400 Complete Guide

Omega Caliber 8400 Complete Guide

The Omega caliber 8400 is an automatic in-house movement developed by Omega. It has a power reserve of 60 hours and is equipped with 39 jewels. 

The Omega caliber 8400 is based on Omega’s caliber 8500 but has the date function omitted. It is a time-only movement that displays seconds, minutes, and hours. It uses Omega’s anti-magnetic technology which makes it resistant to 15,000 gauss. It uses Omega’s Co-Axial escapement and has a free-sprung balance. It uses 2 barrels that are mounted in series. A barrel holds the mainspring which means they contribute to a better power reserve. 

The movement also uses a silicon balance spring (Si14). The movement has a diameter of 29mm and beats with a frequency of 25200 BPH. The movement also uses Omega’s Nivachoc anti-shock system.

This movement is used for the Seamaster 300, which has an open case back. As such, the movement has been decorated to be seen. The bridges and the oscillating weight are decorated with Geneva waves in arabesque. The movement is  Master Co-Axial, which means it is tested and certified by METAS.

Omega caliber 8400 Specifications

• Jewels: 39
• Frequency: 25200BPH
• Technology: Silicon balance spring, Nivachoc anti-shock system, resistant to 15,000 gauss, Co-Axial escapement, 2 barrels mounted in series.
• Diameter: 29mm
• Decoration: Geneva waves in arabesque
• Power reserve: 60 hours