Our watch cases are manufactured using advanced 5-axis CNC machining, with critical dimensional tolerances controlled within ±0.01 mm. Through directional brushing, controlled pickling to enhance surface texture, and nano-grade PVD coating, the corrosion resistance achieves up to ten times that of traditional steel. This process not only ensures excellent wear and corrosion resistance for daily use, but also preserves the natural artistic patterns of the steel. The result is a watch case that meets high-end customization standards while offering distinctive collectible value through its unique texture and refined industrial aesthetics.