The only ‘special’ version of the 8110A models that I now about was designed for the Walter Wolf Formula 1 racing team. Besides the unique design of case, dial and hands, it is also notable for the case material – titanium – and was one of the earliest watches to use it, following Citizen’s world first titanium watch in the form of a Cosmotron (see here: https://sweep-hand.org/2011/05/25/japanese-auctions/)
I’ve had an image of a black cased version, but only recently found a pic of the back of such a model showing an appropriate case material code on the back, along with the case number / model number – 8110-901240. Here’s the dial:
And the case back:
So this can now go in the Chronograph Article….