This is a CITIZEN hand-wound wristwatch. A butterfly wing pattern appears depending on the angle of light. I think this is a rare dial for CITIZEN. It is hand-wound and running, but if you are looking for accuracy, please have it overhauled yourself. I took it to a watchmaker, and they said it originally had a bezel, but it is missing. How about it for someone who can fix it themselves or for collectors? Small scratches can be seen, so please check the photos and decide whether to purchase. cal.6700 CITIZEN Butterfly Wings Blue Dial Morpho Butterfly?