Krysterna CrystalsKrysterna is proprietary to Stührling Original and refers to the crystals that are used in its timepieces. Krysterna stems from the eyewear industry and has more strength over a spread surface area than sapphire. Krysterna crystals are more scratch resistant than mineral crystals and more shatter resistant than sapphire crystals.The Gen-X Family is part of the Leisure Collection, a group of timepieces designed to fit comfortably with your own sense of style. These timepieces feature a modern design that caters to the ever-changing trends in the watch world.Summary of Features• Movement: Citizen Quartz Movement (Citizen JS50) • Complications: Hour, Minute, and Seconds, Chronograph Seconds Sub-Dial, 24-Hour Indicator, and Quick Set Date • Dial: Polished or Matte Finish Dial • Hands: Skeletonized Hands with Luminous TipsDiagrams of Features