Hi Alex; welcome to the board. This bass is a Spoiler. The serial number would be on the end of the fretboard, past the 24th fret, if it's still there. Three piece Maple neck, Mahogany body. I can't tell from the pictures what the top wood on the body might be.
There are a few things about this bass that are unusual. I could be wrong, but my guess is that the electronics are not original. The knobs, the layout, and the modified cover plate on the back, suggest this. The non-brass nut is also unusual. There are very few fretted Alembics with stock non-brass nuts. And the tuning machines also do not look original.
Might be interesting to see what the control cavity looks like.