When sourcing from Titan watch companies, the movement is the core component. You must verify if the watch uses in-house Titan quartz movements, which are renowned for precision, or outsourced mechanical movements for premium lines. Ensure the battery life is rated for at least 2-3 years. For the exterior, prioritize 316L stainless steel cases for corrosion resistance and Sapphire crystal or high-mineral glass to prevent scratches. If purchasing for sports lines, confirm a Water Resistance rating of at least 5 ATM (50 meters).