Continuity mistake: In her bedroom with Dot discussing the whereabouts of the soldier, Miss Fisher has her bare feet crossed and touching in the side shots, but separate in the closeups of Essie Davis. (00:15:15 - 00:16:00)
Continuity mistake: When Miss Fisher is summoned in the inspector's office, initially in front of Jack the desk is clean, just papers. In the rest of the scene, two pens make a sudden appearance. (00:26:20)
Answer: Louisa's watch was broken during the struggle to get away from her attacker.
Bishop73