Diagnostic of timepieces. Battery replacement includes replacement of case back gaskets and other components to ensure water-resistance of the timepiece Strap replacement and metal bracelet adjustment. Time setting and adjustment of the calendar on complicated timepieces Support the front desk when necessary to engage with the clients on any technical clarifications. Provide technical support to the Point-of-sales (POS) on issues related to maintenance of the products Visit or communicate with the POS regularly (at least once a month) to provide training and technical support Ensure the tools and equipment at the POS are adequately maintained