🏷️ Basic Information Identification Make: Casio Model: QW-1955 Year: 1998 Generation: N/A 📋 Manual Details Document Info Manual Type: Service Manual + Parts List Language: English Format: PDF Availability: Downloadable ⚙️ Engine Specifications Powertrain Engine Type: Quartz Movement Displacement: N/A (Electronic) Power: N/A (Battery Powered) 🔧 Transmission Drivetrain Type: N/A (Direct Drive Mechanism) Gears: N/A (Electronic Control) 📐 Dimensions Physical Case Diameter: Approx. 38mm Lug Width: Approx. 20mm Case Thickness: Approx. 12mm 🔧 Maintenance Service Guidelines Battery Replacement Interval: Recommended 2-3 years Cleaning Instructions: Soft cloth, mild soap and water (if water resistant) Lubrication Points: Movement parts (specific lubricants required) 📄 Features Watch Functions Display Type: Digital LCD Water Resistance: Varies by specific model variant (e.g., 50M, 100M) Alarm: Yes Stopwatch: Yes Timer: Yes Backlight: Yes (Electro-luminescent) 📄 Parts List Components Module Number: Likely specific module code for QW-1955 series Battery Type: Specific button cell (e.g., CR2016, CR2032) Gasket Material: Rubber or Silicone