Using your Seiko Presage Zero Halliburton Black GMT watch is straightforward. Just wear it on your wrist and fasten the three - fold clasp with the push - button release. If the watch stops, you can manually wind it to start it up. To keep the time accurate, set it according to a reliable time source. When it comes to maintenance, avoid exposing the watch to extreme temperatures, water (although it may have some water - resistance, don't submerge it without knowing the exact rating), and magnetic fields. Clean the case and bracelet gently with a soft cloth regularly. If you have any issues, it's best to take it to a professional watch repairer.