The year is 1924, WW1 still has not ended. A young Swiss watchmaker crosses into France with only his clothes and his pocket-watch. With nothing to defend himself, he improvises.
To deceive border guards, the watchmaker assembles his pistol into a pocket-watch, and back, using exactly the same set of parts.
[SOUND 🔊] The gun uses air pressure to fire rivets at low speeds; designed to stun, not kill.
[🔊]