The ETA 1154 watch movement is a manual wind movement with a sub-second function. It was used around the period of 1940. Differences between other ETA movements, such as 735, 737-739, 742-744, 752, 755, 772, 783, 784, 786, 801, 836, 837, 847, and 849, are not publicly known. These designations are likely related to variances in base plates and bridge layouts.