To clarify, he’s not exactly the first, he helped popularise it and holds the secret sauce to how to make flex implants.
But it’s basically fully encased in either glass or special biopolymer (basically, plastic that your body doesn’t attack). Both are watertight.
The implant is at no risk of damage from general living. I’ve hit my flex one a few times pretty hard and no issues.
Anything capable of physically harming an implant (at least one made by Amal) will do serious damage to your tissue at the same time, and that’s the bigger concern.
Another thing, Hector, as your question isn’t actually a bad one. Basically, most water damage to devices is from a functioning device with battery. The water, which is generally impure and contains mineral salts and the like that make it conduct electricity and corrode the sensitive connections, does it’s damage on the parts of the device that are either powered or something like a LCD.
As all our implants lack a battery, there’s nothing to do the most damage. Corrosion could occur, but the implant is still sealed (and our antennae are generally magnet wire and, as such, coated with enamel).
Edit: hah, thanks pilgrim, I posted after you made the move.