Watch Model: AD2556 Watch Type: Luxury Watch Movement Type: Chinese Automatic Mechanical Movement Movement Model: ST2130 Movement Functions: Equipped with hacking seconds function, bidirectional automatic winding + manual winding function, quick date adjustment function, displaying three hands and date; Frequency: 28,800 vibrations/hour; Jewels: 28; Power Reserve: 42 hours. Case Material: 316L Stainless Steel Case Finishing: Brushed + Polished Case Back Material: 316L Stainless Steel Case Back Type: Screw-down Solid Case Back Case Diameter: 36mm (excluding crown) Case Length: 46mm Case Thickness: 11mm Lug Width: 19mm Watch Weight: 122g Watch Length: 220mm (Total Watch Length/Circumference) Strap Material: 316L Stainless Steel Case Back Type: Screw-down Solid Case Back Case Diameter: 36mm (excluding crown) Case Length: 46mm Case Thickness: 11mm Lug Width: 19mm Watch Weight: 122g Watch Length: 220mm (Total Watch Length/Circumference) Strap Material: 316L Stainless Steel Clasp Type: Fine Adjustment Folding Clasp Crystal Material: Synthetic Sapphire Crystal Crystal Type: Bubble Dome Crystal Crystal Coating: Blue Anti-Reflective Coating Crown Type: Screw-down Crown Crown Size: 6mm (Diameter) Dial Luminous: BGW9/C3 Super-LumiNova, Blue Glow Hand Luminous: BGW9/C3 Super-LumiNova, Blue Glow /Faceted Hands Water Resistance: 100M Water Resistant [Suitable tor Hand Washing, Swimming, and All Daily Water-Resistant Activities] Package Standard: Tool Box Selling Points: Bubble Dome Sapphire Crystal, 36mm Slim Case, Luminous Display, ST2130 Movement, Explorer-Style Design Design Concept: The AD2556 recreates the classic explorer-style design, featuring a compact 36mm stainless steel case that fits a wide range of wrist sizes. The 316L stainless steel case is finished with brushed and polished surfaces, creating a refined layered texture. The warm vintage-style dial is paired with prominent 9/6 numeral markers for enhanced readability. Powered by the ST2130 ultra-thin Chinese automatic mechanical movement, the watch features a sapphire bubble dome crystal with blue anti-reflective coating. The BGW9/C3 Super-LumiNova provides clear visibility day and night. The screw-down construction delivers 100-meter water resistance, making it suitable for daily commuting and light outdoor activities while balancing a vintage aesthetic with practical performance. Additionally, the movement dimensions and components are fully compatible with ETA2824-2 parts. All ETA2824-2 compatible components can be directly swappeo and used, making modifications and maintenance easier without additional adjustments. It is highly favored by watch modificatio enthusiasts.