Battery replaced with a new one. Belt is aftermarket. - Day, date, and time can be adjusted using the crown. I believe this type of dial on a Crystron is rare. This is an antique used item, so please understand and purchase accordingly. Please refrain from purchasing if you do not understand used items. Also, please refrain from purchasing if you are looking for a perfect item. Operation has been confirmed. * It is confirmed to be working at the time of photography. * Operation is confirmed based on the fact that the time is advancing. Returns are not accepted to prevent swapping, so please understand and purchase.