The Citizen CB5921-59E Eco-Drive radio controlled watch combines a 45mm round shaped stainless steel case and bracelet with a fold over clasp. It has a black analogue dial with luminescent hands, date display, and chronograph sub-dials which is protected beneath spherical scratch resistant sapphire crystal glass with an anti-reflective coating. Power is generated by the eco-drive movement which harnesses light from any source. Other features include: atomic timekeeping with synchronized time adjustment in 24 cities worldwide, perpetual calendar, world time, 12/24 hour time, alarm, and power reserve indicator. This model also has a water resistance of up to 200 metres.