The strong brown leather strap with pin buckle holds a polished stainless steel case with polished elements such as the pushers and the corrugated crown and a narrow strip under the semicircular bezel. This includes a night-blue dial on which the large luminescent hands and hourly numbers divide the place with the 24-hour display, the date as well as the small minute and the small second. At the outer edge, distances or longitudinal speeds can be calculated using the tachymeter scale. The technical range of the Citizen CA4420-13L Eco Drive Chronograph is taken over by the B620 caliber, which has a 1/5 second start / stop function. Energy receives this chronograph directly from the sun and this time out, so the built-in energy storage offers another 270 days power reserve. With 43 mm Ø and a height of 12.5 mm, the CA4420-13L, which is equipped for 100 m diving depth, is an impressive chronograph with the claim to elegance and sportiness at the same time.