This watch features the award-winning Omega Calibre 420 movement and a steel case; it was manufactured in 1952. I recommend researching the Calibre 420 in detail online. It is one of Omega's older models and features an original dial. It is a model with high collector's value; I also suggest researching the details of the inner case back online. It has a 32 mm case diameter and is in perfect working order. It will be shipped with the leather strap attached—as shown in the photo—and includes the vintage box also pictured. The strap fits wrists up to 20 cm in circumference. It will be carefully packaged for shipment. We look forward to your valued feedback. Best regards.