The ETA caliber 955.652 is a thermocompensated superquartz movement. It is said to have accuracy within +/- 10 seconds per year. It is a high-end brass movement with a gold plated finish.
Although this caliber is often listed as being “Thermoline,” ETA now lists it as “Flatline” on their site.
The caliber 955.652 began production in 2004.