903.040Ref

Model 903 is celebrated for its meticulously crafted dial, which requires over 30 production steps to achieve its signature clarity and contrast. Featuring a black nickel-galvanized dial with silver nickel-finished counters, it utilizes a reliable automatic movement with a 3-6-9 sub-dial layout and a 4:30 date window. An additional crown at 10 o'clock operates the slide-rule bezel, enabling complex navigation and mathematical calculations.