Nihon Seimitsu Co., Ltd. engages in the manufacture and sale of watch bands and eyeglass frames. It operates through the following segments: Watch-related, Eyeglass Frames, and Others. The Watch-related segment manufactures and sells titanium and ceramic watch bands and exterior parts. The Eyeglass Frames segment produces and sells eyeglass frames and sunglasses made of titanium and titanium-composite materials. The Others segment manufactures and sells fishing gears, static elimination equipment, electronic locks, ion plating, and health appliances. The company was founded in August 1978 and is headquartered in Kawaguchi, Japan.