🏷️ Basic Information Identification Make: Casio Model: QW-1918/1919 Year: 1998 Generation: N/A 📋 Manual Details Document Manual Type: Repair Manual Language: English Page Count: Varies (typical for PDF manuals, exact count not specified) Format: PDF Download Target Audience: Service Engineers, DIY Repairers Content Focus: Rebuilding and Maintenance Author Type: Professional Author Guide Type: Step-by-step Availability: Downloadable Included Components: Repair Procedures, Parts List ⚙️ Engine Specifications Movement Movement Type: Quartz Caliber: Not specified in product name 🔧 Transmission Gears Type: N/A (Mechanical Watch Components) Number Of Gears: N/A 📐 Dimensions Watch Case Diameter: Not specified in product name Strap Width: Not specified in product name 🔧 Maintenance Routine Battery Replacement Frequency: Recommended every 2-3 years (typical for quartz) Cleaning Instructions: Detailed in manual Lubrication Schedule: Detailed in manual