Stelux Holdings International Limited is an investment holding company involved in the trading, wholesale, and retail of watches in Hong Kong, Macau, Mainland China, the rest of Asia, and Europe. It distributes clocks and watches, including the Seiko, Cyma, Credor, and Grand Seiko brands, and engages in watch supply chain management and watch movement manufacturing. The company also owns and operates online stores under the Primo City Chain, Solvil et Titus, and City Chain brands, and is involved in property investment, management, and agency activities, as well as holding and licensing trademarks. Founded in 1963, it is headquartered in San Po Kong, Hong Kong.