The Casio CA-53W-1ER Vintage watch combines a 34mm rectangular shaped resin case and black resin strap with a traditional buckle. It has an LCD digital dial which is protected beneath resin glass and an 8 digit calculator. Power is generated by the quartz movement and this model is also splash resistant. Accuracy +/- 15 seconds per month Alarm function Automatic calendar Once set, the automatic calendar always displays the correct date. Button tones on/off Watch will not beep when switching from one function to another. Preset alarm or countdown timers remain active when the button tones are deactivated. Date and weekday display Dual time Simultaneous display of the current time in two different time zones. Home city time swapping. Resin band Synthetic resin is the ideal material for wrist straps thanks to its extremely durable and flexible properties. Stopwatch function - Case Depth 8.2mm - Case Width 34.4mm - Watch Movement Quartz - Water Resistance Splash Resistant