I recently lost a Heuer watch in a relocation. I want to replace the watch but i'm having trouble identifying the model number. The watch was purchased between 1980 and 1985, It came in a long red hinged box marked Heuer. It originally had a rubber band. The documentation is labeled "Heuer Electronic 12" The warranty information was copyrighted in 1980. The watch was a dive watch with a black face and bezel with a screw down locking crown. It originally came with a black rubber band. I'm not sure if it was a 980.006, 980.006L or a 980.013N Can anyone help identify the watch???