We need a glossary of sorts, methinks.
Crown = the winding crown (little knob) at 3:00 that allows you to set the date nd time and manually wind the watch if you feel so inclined Manual winding an auto watch, by the way is not recommended.
ETA = the type of movement your replica is likely to have. ETA is a movement manufacturer owned by the Swatch Group, and ETA produces several movements that are not only found in reps, but several gens as well. Be aware, however that there are Asian clones of the ETA movement.
The more and more you hang around and read, absorb, interact etc. the more likely you'll pick up the majority of these terms.