Hi, I have a certain male anatomical part
Welcome to the boards, if we haven't freaked you out yet then you're made of some stern stuff, perfect for surviving in this nuthouse. I'll have you know I'm more of a Anacardium occidental (aka a cashew).
As for your question, it's true all main line Japanese releases by TakaraTomy have their own ID number, however Hasbro Asia likes to copy that for their own releases from time to time. Masterpiece Acid Storm and Soundwave are good examples of that, but they actually started it 5 years back with the Universe Special Editions. For instance, Drag Strip was SE-3 and Overkill was SE-4.