I purchased this here. As I don't use it often, I'd like to pass it on to someone who will cherish it. The design of the dial and the understated size create a very nice atmosphere. Below is the description from when I purchased it. Serviced in June 2025. IWC Square Old International Vintage Elegance and Luxury 1970s Cal. 423 is the final version of the 400 series, the last movement IWC designed and produced in-house. It truly marked the end of the Old International movements, a rare movement with only 6,600 produced in four years. What's so wonderful about it is that, unlike previous movements, it features jewel rubies set in gold chatons, often seen in vintage watches of the past, and an oiling device on the escape wheel bridge, showing the dedication put into this final movement. The dial is a silver textured dial with Roman numeral indices. - Brand: IWC - Model Name: Hand-wound watch - Dial Color: Silver - Belt Material: ss aftermarket - Case Material: ss Working condition Size: Approximately 31 Slight scratches, small dents (overall) Please understand that this is a vintage used item before purchasing. Please allow for some errors due to amateur measurements. There may be other age-related deterioration or issues that I am unaware of. This item is available for immediate purchase, but please refrain from purchasing if you have a poor evaluation history to prevent any trouble. Also, due to the possibility of item substitution, no returns or exchanges are accepted. Thank you for viewing.