Sorry, I don't see it, or in this case
do see it. The dial appears fully visible, at least to me, with a printed line at the edge of the numerals, red arrow, which perhaps you are interpreting as the edge of the retaining ring. The area between the yellow arrows looks like the dial surface, not a retaining ring. Is there more of the dial that you think is missing?
View attachment 981785
Click to expand...