HSN Code 9110 refers to "Complete, unassembled or partly assembled watch or clock movements or movement sets; incomplete watch or clock movements, assembled; rough watch or clock movements." This classification code is essential for identifying timekeeping mechanisms for import/export purposes based on their assembly status and intended use. Common products under HSN Code 9110 include complete watch movements, partially assembled clock movements, and rough movements for watches and clocks. Additionally, the GST rate for watch and clock movements under this code supports accurate trade compliance.