Here are the differences between the grades of Eta movements available.
- The 2824 and 2892 can be ordered in different grades of quality: Standard, Elabore, Top, Chronometer
- The differences in grades can range from quality of materials used to level of testing and regulation
- Most 2824 movements you find will be of the lowest grade as they were the most widely produced. Even in lowest grade, it’s still a very good movement.
- The lowest grade of 2892 utilizes better shock protection and better finishing and materials than the lowest grade of 2824.
- Unless specifically stated by the watch maker what grade of movement is used, assume lowest.
- At the top grades, some people consider the 2824 to be more robust albeit at the expense of being thicker. Some designs, especially today with “turnip” sized watches can accommodate for this 1mm thickness (significant) difference.
- It’s sometimes mistakenly implied that the 2892-A2 is a significantly newer design than the 2824, both trace their roots far back. The 2892 from Eterna and the 2824 from back when ETA used to be part of Eterna.
- At top levels, both can be made equally accurate