Casio Men's Classic Black Digital Resin Strap Watch F91W-1. A tried and true style great for casual wear, the Casio Classic black digital watch for men will help to ensure you won't miss another appointment again. It offers a daily alarm and hourly time signal (which can be turned off), as well as an auto-calendar function (pre-programmed until the year 2039). Casio Men's Classic Black Digital Resin Strap Watch. Additionally, it includes a stopwatch that can time events down to 1/100 of a second, and features a 60-minute capacity, split time, and 1st-2nd place times. The black resin case is matched to a gently tapered, nicely comfortable black resin strap. Other features include a ±30-second accuracy per month, micro light for low-light conditions, scratch-resistant mineral crystal, and water resistance to 50 meters (165 feet)--suitable for swimming but not for diving. Casio Men's Classic Black Digital Resin Strap Watch