Luminescent Markers and Hands This watch will glow in the dark after absorbed enough light energy.large hour markers and hands, easy to read. Water resistant to 100ft (30m) Suitable for everyday use. Splash/rain resistant. Not suitable for showering, bathing, swimming, snorkeling. Automatic Movement Built-in 21 bearings to improve winding efficiency and power reserve. 21,600 vibrations per hour. Power can be reserved 45 hours. Unidirectional Rotatable Bezel The unidirectional rotatable bezel is fitted with a 60-minute graduation that allows you to confidently monitor your times.The bezel’s knurled edge offers excellent grip. Stainless Steel Band Stainless steel is durable, reliable and corrosion-resistant.Comes with free link removal tool that you can easily custom the desired wrist size at home. Magnified Date Window Classic magnified date window ensures optimal legibility of the date and fully shows unique style.