🏷️ Basic Information Identification Make: Casio Model: QW-2152 Year: 1999 Generation: Unknown (Specific to model year) 📋 Manual Details Documentation Manual Type: Repair Manual and Parts List Language: English Format: PDF Download Delivery Method: Digital Download Content Focus: Step-by-step repair instructions, visual aids, parts identification Target Audience: Watch repair technicians, hobbyists, owners seeking DIY repairs ⚙️ Engine Specifications Powerplant Engine Type: Quartz Movement (Specific module number not provided in description) Power Source: Battery 🔧 Transmission Drivetrain Type: Mechanical (Watch movement) Gears: Multiple small gears within the movement 📐 Dimensions Physical Case Material: Likely Resin or Stainless Steel (common for Casio 1999 models) Strap Material: Likely Resin or Leather (common for Casio 1999 models) 🔧 Maintenance Service Typical Battery Life: 2-5 years (depends on module and usage) Recommended Service Interval: Every 3-5 years for battery replacement and seal check Lubrication Requirements: Micro-lubrication of movement parts during overhaul 📄 Performance Functionality Water Resistance: Likely 50m to 100m (typical for Casio sports models of the era, specific rating to be confirmed in manual) Accuracy: +/- 15-30 seconds per month (typical for quartz movements) 📄 Features Watch Functions Primary Functions: Timekeeping (Hours, Minutes, Seconds) Additional Functions: Likely features such as Alarm, Stopwatch, Timer, Date (specific functions depend on model variant) Display Type: Analog or Digital (based on model QW-2152 designation, specific type requires manual review) Illumination: Likely Indiglo or Luminescent hands/markers (common for Casio 1999 models)