I have this Waltham 7-1/2 ligne round movement (circa 1916) with original dial. The dial is 24 mm long and 17 mm wide at the movement. These small movements are typically cased in very stylish gold or platinum wristwatch cases.
What has me stumped is that this is set up to wind at 12 and I cannot imagine what style case it may have originally had. Does anyone have any suggestions or examples?

What has me stumped is that this is set up to wind at 12 and I cannot imagine what style case it may have originally had. Does anyone have any suggestions or examples?