..... there is also 5096J. slightly larger but with sapphire back.
If you dig deeper, there is also 3796 made for the Japanese market , only 100 pieces in both J and G.

and it's a rarer find. It has a screwed back and is large (around 34mm). It is not a limited production but the period was very short (only for a year or so, AFAIK), and it's only produced in yellow gold.
Happy hunting!
Francis