IW389001 is in whole black, including the dial, it is the model I prefer. While IW389002 has a green dial. There is one little difference between the two watches on the dial, that is IW389002 has a red circle on the center of the dial to display 12 hours. Two subdials are positioned at 12 and 6 o’clock. The subdial with a small red hand is small seconds subdial, while the subdials at 12 o’clock have two small dials in sunken design, the outer one is 60-minute chronograph counter, while the inner one is 12-hour chronograph counter. All hour markers are in white, the markers at 3, 6, 9 and 12 o’clock are applied with luminous material, they will emit a strong green light at night.Compared with the green dial of IW389002, I like the black one of IW389001 more. It has a match of white details in blackground, which greatly increases the dial readability. Black looks cooler too.
