The Swiss "Hard-On" watch is a famous, highly collectible novelty erotic wristwatch from the 1970s.

These novelty pieces were primarily sold through adult novelty shops, mail-order catalogs, and "glorified" gift shops.

This version is unique compared to similar listings as it has two hearts and a  pink/blue color scheme for the hands & hour markers.

Watch is currently running and keeping time but, as with all vintage movements, may require a service in the future.

Swiss Movement / Hong Kong made dial

Being sold as-is; refer to pictures