Case: 47mm x 46,9mm x 16,2mm (H x W x D). approx. +/- 20 seconds per month accuracy. Resin Band. Stainless steel/resin case. Mineral crystal. Full Auto Calendar. Speed display (VELOCITY INDICATOR) The average speed for a travelled route can be measured. An accoustic signal goes off daily at a set time. Daily alarm without an hourly chime. The watch can measure times of up to 1 hour. The elapsed time is measured with 1/20-sec accuracy. - 1 hour. Stopwatch function - 1/20 sec. Shock-resistant construction protects against impact and vibration. Shock Resistant.