Amazon.com: PROKING Waterproof Nurse Watch for Medical 。?SUPER EASY TO READ: white dial with 12 & 24 hour markers and Luminous Face. Japanese quartz movement with highly visible red second hand. Case diameter:38 mm. ?SPECIAL DESIGN FOR MEDICAL PROFESSIONALS: 3-Hand Quartz Movement with Highly Visible Red Second Hand Makes Taking Accurate Pulse Reading Easily, designed for nurses,doctors,teacher,workers and students. ?DURABILITY & COMFORT: Easy to Clean, High Quality and Super Soft 100% Silicone Band and Water Resistant Up To 30M(99ft). ?MULTIPLE COLOR OPTIONS: Available in a Variety of Matching Silicone Band Colors - Black, White, Blue, Grey, Red,Red, and Pink.