The Casio Vintage W221H-1B Digital is a versatile and durable everyday watch, featuring a black case, black bezel, digital LCD screen, and black strap for a sleek, all-black look. Its large display ensures clear readability, and the LED backlight allows easy viewing in low-light conditions. Powered by Module No. 3585, it includes world time for 29 time zones (48 cities), a 1/100-second stopwatch, countdown timer, three multi-function alarms (including a snooze), hourly signal, full auto-calendar to 2099, and 12/24-hour format. It keeps regular time with hour, minute, second, PM, month, date, and day, with an accuracy of ±30 seconds per month. With a 43.7 × 38.4 × 12.2 mm case size, 35 g weight, 50-meter water resistance, and an impressive 10-year battery life (CR2032), the W221H-1B is a reliable, functional, and stylish companion for active daily wear. - Module No. 3585 - 43.7 x 38.4 x 12.2mm Case Size - 35g Weight - LED backlight with selectable illumination (1.5 or 3 seconds) and afterglow; flashes with buzzer for alarms, hourly signal, countdown timer, stopwatch, and alert on/off - World Time: 29 time zones (48 cities), city code display, DST on/off - 1/100-second stopwatch (23:59'59"99) with elapsed, split, 1st–2nd place times; 5-second countdown auto start on/off - Countdown timer: 1-second unit, 24-hour range, start time 1 min–24 hrs; auto-repeat, time-up alarm, progress beeper on/off - 3 multi-function alarms (including 1 snooze) - Hourly time signal - Full auto-calendar to 2099 - 12/24-hour format - Button operation tone on/off - Regular timekeeping: hour, minute, second, PM, month, date, day - Accuracy: ±30 seconds per month - Approx. 10-year battery life (CR2032)