These 18s engraved cases are as prevalent as they once were, so don’t miss out. This is a 3 pc. Case, NOT a swing-ring. It is a good case, it functions as it should, it is very clean and heavy at almost 100 grams. The Crown can also be pulled up to accommodate Pendant Set movements. Case: Open Face, both covers screw on/off. Outside D: 59.4 mm. Please use the photos as a big part of the description and please contact me with any questions.