Continuing with my experiments I modified the 3D model for a better fit to the watch case. It now fits exactly. It couldn't fit better if manufactured by Casio itself. The new stainless print has a very precise fit. Not only that but Shapeways also moved the sprue to the end where it's much easier to grind off. The previous stainless print had the sprue on the curved side which didn't look to good. (I'm fussy about detail) I also printed a couple colored WSF covers which came out quite nice. I'm very very happy with the results.