Wiktionary
n. The casing that holds the mechanism of a watch
Usage examples of "watchcase".
He frowned sourly, his bushy white eye brows knit together pensively, when he closed the watchcase and slipped it back in his pocket.
On the left in the watchcase was another photo, this time of the woman alone.
When he refolded it, Maia saw that the watchcase cover bore an engraving of an airshipa flamboyant, fanciful design that obviously could never fly.
And you can get an electrical detonator the size of a watchcase these days.
Sebastian snapped the watchcase closed and slid it back into his fob pocket, checking in the mirror over the mantel that his demimask was affixed correctly and the soft hat covered his hair.
I sense that on the inside of the watchcase there will be a picture, and I pick up the watch to see whose picture it is.