A mechanical automatic wristwatch from the AOKULASIC brand (sometimes called Aukulasic), featuring a "Skeleton" design that reveals the inner workings of the movement. Key specifications of the watch: Movement Type: Mechanical automatic, powered by wrist movement, no battery required. Design: Semi-hollow dial with "Moon Phase" or Day/Night indicator function. Materials: Two-tone stainless steel bracelet (silver and gold), with scratch-resistant mineral glass. Resistance: 3ATM water-resistant (for light daily use like hand washing) and equipped with luminous hands. Measurement: Case diameter is typically around 41mm.