This is a vintage, New Old Stock Swiss watch from the early 1980?s All steel case is 29mm wide (without crown) x 34mm lug tip to lug tip. Movement is an ETA-ESA 555.412. The ETA 555.412 watch movement, used from 1982 to 1986, is a quartz-controlled stepper motor movement that features an analog display with a sweep seconds hand. It includes a quickset date function and a calendar. This is a high quality timepiece for the enthusiasts of the late XXth century design. Watch is unworn. What is New Old Stock or NOS? My NOS watches are unworn. They come from a large job lot I purchased in Switzerland. These watches are considered to be new though minor shelf wear or minimal traces of handling may be present on some of my NOS watches. They still carry the original price tags on the back covers. Price is always in Swiss Francs in case you want to convert the currency. You will see these were a high price watches back in the day. All of my watches are tested and new premium quality watch batteries fitted. If you are interested in buying multiple watches from me I am ready to negotiate a package deal.