Citizen Classic Chrono watch CA4420-13L wins its owners especially with its versatile appearance and relatively high durability. Of course, the Eco-Drive, which provides power using energy from the light, eliminating the need to replace the battery. Citizen Classic Chrono watch CA4420-13L wins its owners primarily by its versatile appearance and relatively high durability. Of course, the Eco-Drive ensures that the power is supplied by the energy from the light, eliminating the need to replace the battery. Citizen CA4420-13L has a case made of stainless steel, which is complemented by a leather strap. This case holds the in-house Citizen B620 movement, which features a light rechargeable battery with running reserve of up to 9 months and also has a discharge indicator battery function. Other features include a stopwatch, a twenty-four hour sub-dial and a date display at the 4-5 o'clock position. An interesting feature of the stopwatch is the smooth operation of the second hand, which allows the time to be measured with 1/5 s accuracy. The clear dial is protected by a mineral glass. The water resistance of the watch is 100m, so it can easily withstand activities such as swimming or minor diving. Reviews and testing: A watch for everyone? Citizen.