This is Casio's first resin case model. It's the same watch seen in the movie "Alien." Also, it has a 1/100th second stopwatch, which was rare for this era. It's a fairly old model, but I don't think there's any major damage. As you can see in the images, all functions are working. (Only the lower left button is a little stiff.) Please press the adjust switch firmly to adjust the time. When adjusting, the hours and minutes will advance automatically. This is a specification of this watch. The battery was replaced on March 8th. This is for the watch body only. The strap is not original. Please understand that this is a used item before purchasing. No claims, no returns, and no cancellations, please. Thank you.