This model is waterproof according to DIN 8310 and ISO 22810 and can withstand light splashes. Greater water contact should be avoided. The 8-digit calculator can add, subtract, multiply, and divide. A second time zone can be set and retrieved, which is ideal for those who frequently make calls overseas. For athletes and anyone who wants precise measurements: elapsed time, lap time, and finish time are measured with an accuracy of hundredths of a second. The watch's measurement capacity extends up to 24 hours.