Sheffield Mechanical Digital Watch Wristwatch SWISS MADE Vintage 1970s Mechanical, hand-wound. I have confirmed its operation for a few hours. It works. Due to its age and the fact that the operation check was performed by an amateur, please refrain from expecting high accuracy. There are small scratches, discoloration, and stains. We would appreciate it if those who understand old watches would consider purchasing. Please note that we are not considering any price reductions.