A quick look at the ratings and it was IPX8 for the Zfolds 3, 4 and 5. However the water resistance is only as good as the integrity of the seals. Piggy, drunk at the time, probably damaged the seal at the usb c port trying to jam in a charging cable with his hooves, or somehow otherwise compromised the case. Look at the shit condition his MS Surface is in. He's posted photos of it with those "I Voted" stickers, some of which he stole from Nikki.
Piggy's watch is a Festina f6847. Yes, the autism, but it is the only Festina open heart and he boasted about getting it while in Europe. Let's see, mineral glass crystal-- cheap in this day and age. Wait, 50m water resistance. You can shower in it, but maybe not go swimming. One of the Pests noted Piggy used to wear a Fossil automatic, or was it quartz? It's the watch seen on his pointy finger profile photo. Probably quartz and the battery died. Piggy doesn't know how to replace the battery. It's that Problem Solving course. He didn't do well in it, so solving the problem of a dead battery is beyond Piggy.