From the Oxford Compact English dictionary
retrograde
• adjective 1 directed or moving backwards. 2 (of the order of something) reversed; inverse. 3 reverting to an earlier and inferior condition. 4 chiefly Astronomy proceeding in a reverse direction from normal, especially (of planetary motion) from east to west. • verb 1 go back in position or time. 2 Astronomy show retrograde motion.
For a WIS, a "retrograde" display is one which moves backwards as part of its normal motion. This does not include, for instance, the resetting of a chronograph's hands when reset to zero.
In recent years, retrograde displays have become relatively common.
Here is an example, of a Maurice Lacroix

A comment on another forum suggested that Omega should include retrograde displays within their line on today's watches. I glanced through the current catalog, and indeed, if there is a retrograde display in the current product line, I missed it.
I thought about vintage, without consulting any reference materials, and couldn't think of one.
So, here is my question for today:
Has Omega ever produced a wristwatch with retrograde displays?
We will, of course, need a photo.
If you can't find a wristwatch, I know Omega had a few pocket watches with retrograde displays and I am sure one of you will produce a photo.
Thanks