Hi! Your GUB is excellent, especially that is in so good, rare condition. Congratulations! I love these old GUBs, love their vintage style, love their normal size, domed acrylic crystal and domed dials. I love sound of the rotor in automatics. Mechanisms are accurate enough and quite tough. I have 3 GUBs. Although they are not so beautiful as yours, the first three are one of the favourite in my small watch collection.