When evaluating wrist watches, the movement type is the most critical factor; choose between Japanese or Swiss quartz for accuracy and low maintenance, or automatic movements for the luxury segment. Ensure the case material is at least 316L stainless steel to prevent corrosion and skin allergies. For the watch face, sapphire crystal is preferred for high-end models due to its scratch resistance, while mineral glass is a cost-effective alternative for mass-market fashion watches. Additionally, verify the Water Resistance (WR) rating, ensuring a minimum of 3ATM for daily use and 10ATM or higher for sports or divers' watches.