Apart of the Casio Vintage range, this timepiece CA500WEGG-9B pays tribute to the CQ-1 which was a calculator with a clock function released in 1976. The design of the watch from the colour black and yellow scheme, dial, face design featuring a full keypad captures the look in a compact manner from the colours and design to the tee with a touch of nostalgia. - 43.2 × 34.4 × 8.2mm Case Size - 53g Weight - Resin/Chrome Plated Case and Bezel Material - Stainless Steel Band - Adjustable Clasp - Water Resistant - Approx. battery life: 5 years on CR2016 - Resin Glass - Surface treatment: Gray ion plated band - World time - Dual time - Stopwatch - Alarm/hourly time signal - Daily alarm - Hourly time signal - Calendar: Full auto-calendar (to year 2099) - Mute feature: Button operation tone on/off - Accuracy: ±30 seconds per month - 8-digit calculator - 12/24-hour format - Regular timekeeping: Hour, minute, second, am/pm, year, month, date, day