ETA SA E61-041

The ETA E61-041 is a quartz movement manufactured by ETA SA in Switzerland. It measures 18.2 mm in diameter and 1.95 mm in height with 8 jewels. The movement features hacking seconds and a date complication displayed in a window. It uses a Renata 321 battery with a theoretical lifetime of 49 months, or optionally a Renata 364 battery for up to 68 months of operation. This caliber is an updated version of the earlier 256.041.