For the US market, ensure compliance with CBP (Customs and Border Protection) marking requirements, specifically the 'Country of Origin' must be engraved on the movement or case back. For the EU, CE Marking and RoHS certification are essential to ensure the electronic components and batteries are free from hazardous substances. If the watch features a leather strap, verify CITES compliance to ensure no endangered species materials are used, and check for REACH regulation adherence regarding nickel release in metal parts.