This is the style that screws open in both the front and the back. Very nice looking case. Please use photos as part of the description. Works equally well for both pendfant and lever set movements and is a little heavier than most at 100 grams empty. The Crown can also be pulled up to accommodate Pendant Set movements. Case: Open Face, both covers screw on/off. Outside D: 58 mm. Please use the photos as a big part of the description and please contact me with any questions.