Well hello again, you certainly are enthusiastic . I hope at some point you will cease to be 中学生 "the student" and contribute to our scholarship as the teacher; in particular you may be interested in reporting on V&C in the Chinese market, which I understand goes well back into the 19th century.
Meanwhile, I sympathize with the challenge of researching V&C as a non-native speaker. I have the same difficulties with early records and correspondence in French. It is an accurate statement that alpha hands were reserved for the Chronometre Royal models, but that does not mean that all Chronometre Royal watches had alpha hands.
My observation is that the early manual-winding wrist watch CR models did exclusively have alpha hands, however they were abandoned with the first automatic CRs. Alpha hands came back with the 47022 Chronometre Royal automatic of the Patrimony collection. But they were absent again in the 1907 CR Historiques (understandable with a design that referenced the subscription pocket watches).
In brief, I think Dan is right on; the non-CR watch has incorrect alpha hands, while the manual ref 6340 CR incorrectly does not.