Casio Watch Collection Digital Watch With A Black Synthetic Resin Strap, 43,2mm x 34,4mm x 8,2mm Resin Case & A 8-digit calculator. Technical Specifications 8-digit calculator: The 8-digit calculator can add, subtract, multiply and divide. Second time zone: A second location time can be set and called up. Ideal if you frequently make overseas calls. Stopwatch function - 1/100 sec. - 24 hours: Elapsed time, split time and final time are measured with 1/100-sec accuracy. The watch can measure times of up to 24 hours. Daily alarm: The daily alarm reminds you of events that recur every day, by emitting an audible signal at the set time. Automatic calendar with Date, Day and Month: Once set, the automatic calendar always displays the correct date. 12/24-hour format: Times can be displayed in either a 12-hour or 24-hour format. Acrylic Glass: The acrylic is easy and relatively unbreakable. Resin case: The resin housing is the ideal everyday companion. It is durable, lightweight and relatively insensitive to cold, heat or other external influences. Resin band: Synthetic resin is the ideal material for wrist straps thanks to its extremely durable and flexible properties. Buckle: The bracelet is equipped with a buckle. 5 Years - 1 Battery: The battery supplies the watch with sufficient energy for approx. five years. Water resistance classification (WR) to ISO 22810: This model is water resistant to DIN 8310 / ISO 22810, and thus is resistant to minor splashing. Any greater water contact should be avoided. Dimensions (H x W x D): 43,2mm x 34,4mm x 8,2mm Weight: approx. 25 g