Purchased at an antique market in Los Angeles. Style 8 It gains or loses a few minutes per day. Since the overhaul history is unknown, it is sold as junk. Size: Height: Approximately 8.5cm Width: Approximately 9cm Depth: Approximately 5.5cm The back cover is secured with three screws, but one of them is not the original screw. (See photo 3) The base is supposed to be secured with two screws, but there is only one, and that screw is also different. (See photo 5)