IWC, IWC Portuguese series, model: IW371624, automatic winding Dial design The silver-gray radial dial features three-dimensional Arabic numeral hour markers, gold-plated hands, and a dual small chronograph sub-dial layout: a 30-minute chronograph sub-dial at 12 o 'clock, a 12-hour chronograph sub-dial at 6 o 'clock, and a small seconds hand at 9 o 'clock. The outer circle features precise orbital minute scale Case and strap 41mm stainless steel round case, two chronograph pushers on the side + crown, polished and brushed composite process; The picture shows a dark brown alligator leather strap (the original factory standard is mostly black, and brown is optional or replaced later), with neat stitching. Self-produced column wheel movement, with a smooth and stable start and stop feel when timing. The dial is retro and simple, with a silver plate and gold needle, making it versatile for both business and casual wear. With extremely high recognition, the dual small dials and large numerals are the signature design of the Portuguese chronometer.