All, What movement might be in my 1983 acquired Heuer 980.006? The watch is 39mm (bezel). Markings on the face are Heuer logo at 12, and Quartz, 200 meters and Professional at 6. Backplate is solid, with markings around the plate: acier, 20 atm, etache and quartz. I'm asking because I would need a crown, stem, and possibly a tube. I have not been able to find those at ebay, so all suggestions are welcome. I could even buy an unfunctional donor watch or movement if those would include the parts I need.