Neo Vintage GRUEN Precision 'Cintree Curvex' Quartz 30mm Unisex Watch

Neo Vintage GRUEN Precision 'Cintree Curvex' Quartz 30mm Unisex Watch. Pre-owned, this watch is in good vintage condition in appearance, however, I have no idea if it works or needs a battery. I bought it at an estate sale, and the other watch I bought that day works great with a new battery. Exploding numerals, sunray dial texture.

B370