I've seen some Baywatch's over the course of time here in Germany.
Let's say they are not rare but not massively produced either.
It's the same as with A13, the games numbers are around 2000-ish and around half of them have survived until today.
Sega pins in general were quite popular in Germany though, Bally Wulff distributed them to operators and resellers around here and the overall build quality was nice since the end of the system 3b era, except for the cabinets which are always damaged on the underside right beneath the coin door.