... 3 years life 3.Water Resistant Transparent Plastic Promotional LCD Watch 1. Product Info:Lens: PMMACaseback: stainless steelBand: Plastic PUBattery ... Day/Date, Water ResistantAnnouncements: Please do not let the watch contact with any chemical solvent,,mercury, cosmetic, aerosol spray, location ... is 500,000pcs per month(watch), we have a good quality control with a competitive price and highly welcome ...