NOO WAY, i don't need to change it, i just wonna know what movement i have, I wonna know very good my watch, I like to know something I own, so I am just interested, my watch is new, one week is "his" age:P, i will upload some pictures, but now I am on my laptop traveling, and stuying about my watch , thank u anyway! BTW, what is your opinion about miyota movement in general, is good this miyota systems for watches?