There is no problem in the operation of the watch. Case dia: 40 mm ''Wihout Crown'' 6139 movement automatic chronograph day date function one push crown date.. When you press it all the way down, the day and date advance simultaneously. The chronograph works and resets very well. The watch also keeps very good time. Band lenght: 18 cm ''180mm'' Dial Case Hands Movement: Original !! Bracelet is aftermarket !! Introducing the Seiko 6139-6040 "Silver Ghost," a sought-after model from Seiko’s iconic 6139 lineup, renowned for its unique aesthetic and historical significance. This stunning automatic chronograph from the mid-1970s, sometimes referred to as the "Ghost Bezel," combines the spirit of vintage watchmaking with an intriguing design quirk: the bezel’s tachymeter scale subtly fades over time, giving it a "ghostly" effect that only enhances its character.