🏷️ Basic Information Identification Make: Casio Model: QW-1889/1898 Year: 1998 Generation: Not Applicable (Watch Model) 📋 Manual Details Document Information Manual Type: Repair Manual + Parts List Language: English Page Count: Unknown (PDF Download) Format: PDF Download ⚙️ Engine Specifications Power Train Engine Type: Quartz Movement Displacement: Not Applicable (Watch Component) Power: Not Applicable (Watch Component) 🔧 Transmission Gearbox Type: Mechanical Gear Train Gears: Multiple Miniature Gears 📐 Dimensions Physical Dimensions Length: Varies by specific QW-1889/1898 model Width: Varies by specific QW-1889/1898 model Height: Varies by specific QW-1889/1898 model Weight: Varies by specific QW-1889/1898 model 🔧 Maintenance Service Schedule Service Interval: As needed for battery replacement and cleaning Lubrication Oil Capacity: Not Applicable (No Engine Oil) 📄 Features Watch Functions Display Type: Digital LCD Water Resistance: Model Dependent (e.g., 50M, 100M) Battery Type: Specific coin cell battery (e.g., CR2016) Alarm: Yes Stopwatch: Yes Backlight: Yes (EL Backlight) Date Display: Yes Time Format: 12/24 Hour