Quick view ETA 255.511 255.561 255.472 4000 Electronic Module Circuit Original New Sealed ETA New Sealed Package Original ETA Calibers: 255.561, 255.511, 255.472 Circuit Part Number 4000 (Electronic Module) Fits: 255.561, 255.511, 255.472. Also, some movement in Omega 1441, Chopard,... $69.95