Citizen Eco-Drive technology with radio-controlled atomic timekeeping makes the World Perpetual A-T the most accurate watch in the world. This analogue world timer perpetual calendar provides timekeeping in five time zones and automatic time in 26 world time zones. A stylish timepiece, it has a stainless steel bracelet with fold over clasp and hidden double push button, and a stainless steel case with a black dial and bezel.