It looks like a chronograph watch, but the tachymeter engraved on the outer circumference of the watch is just a decoration. The longest second hand on the watch should function as a tachymeter, but this watch just counts the seconds. This does not function as a tachymeter. Also, the position of the dial and the hands of the watch do not match. Even when the second hand is at the top, it is slightly off to the right and it is difficult to tell whether it is 59 seconds or 0 seconds. The good thing about it is that once you set the watch, it does not go out of sync too much. However, since it does not match the dial, you will have to get used to it. Overall, this is a fan item, but its practicality is questionable. If you are not a fan of "The Quintessential Quintuplets", you will think "It's silly and I regret buying it."