This is a used Swiss-made Enicar case. It's an old piece with a plastic crystal and a plated case, so there are fine scratches. There's a particularly noticeable scratch on the lower left lug. On the copper-colored ring-shaped bevel on the inside of the glass, there are hemispherical dots that appear to be luminous material. The dial viewing diameter is approximately 24mm. This is a used case and is sold as-is. The spring bars are compatible with 16mm.