Youll always know what time it is day or night with the Isobrite Grand Slimline Series Analog Watch with Leather Bracelet. T100 tritium illumination is four times brighter than ordinary watches that use T25 illumination. Accurate Swiss Ronda 715Li quartz movement. Anti-reflective scratch-resistant sapphire crystal, stainless steel case and leather watch band. Five-year lithium-ion battery. Water-resistant to 50 meters. Case dia: 42mm. Colors: Black Dial/Black Band, Brown Dial/Brown Band, White Dial/Black Band. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Analog Watches.