In Version #1. Poorly designed from the wearer’s perspective. The locked up lady would have to remove the entire Chastity Belt each time she had to take care of personal maintenance. What a bother that must have been. Then the belt would need sanitizing, hopefully without corrosion or rusting up.
Constant sweat production would create a dark, moist environment of bacteria, which could be absorbed by the skin.
Oh, and she better not lose that key, if she was even allowed to carry it. You’ve come a long way, Baby!
You did notice the bolt cutter?