Citizen Watch AT4126-55E Perpetual Calendar A.T timepiece. A chronograph with all the tools for professional use, Radio-Controlled Atomic Clock Synchronisation for superior accuracy in 5 worldwide cities, perpetual calendar, alarm and stopwatch. Stainless steel case and Gold plated case & bracelet with black dial and gold accents. Tachymeter scale. Featuring Citizen’s award-winning Eco-Drive technology which harnesses both natural and artificial light and converts it into energy to power the watch – a watch that never needs a battery