Longines Caliber 176.2 Part Number 4000 (Electronic Module)

Baume & Mercier Caliber 7425 (ETA 956.111) Part Number 4000 (Electronic Module)

NOS ETA Caliber 927.001 Part Number 4000 Electronic Module - Coil Attached

NOS ETA Caliber 956.411 Part Number 4000 Electronic Module - Coil Attached

ETA Caliber 965.101 Part Number 4000 (Electronic Module)

ETA Caliber 956.431 Part Number 4000 (Electronic Module)

Longines Caliber 152.4 Part Number 4000 (Electronic Module with Trimmer)

NOS ETA Caliber 980.105 Part Number 4000 Electronic Module