Well I've been taking quite an interest in the Citizen LCDs from mid seventies to early eighties.......
And I'd say that this is a variant of the Lithium Multi-Function Cal 9500. The standard 9500 has two buttons on either side of the case. This one obviously has two side and two front buttons instead. Don't know much about this one as I start losing interest when things go Lithium but there should be a four digit Calibre ID on the back plate of the movement - possibly 950?
I have a .pdf of the 9500 manual if you want it.

