1/5 Second Stopwatch records elapsed time up to 12 hours Date at the 3 o'clock position Split-time measurement Push-button folding safety clasp Screwdown caseback Luminous hands and markers for night-time visibility Hardlex mineral crystal is scratch-resistant Water-resistant to 100 meters -- suitable for swimming, showering or snorkeling Approximate width of case, 1 5/8 inches (40 mm)