CASIO General Line F-91WB-1A - Black

• The watchband components are made of bio-based resin, using materials produced from renewable organic resources, which is expected to help reduce environmental impact. 
  
• Case dimensions: 38.2 × 35.2 × 8.5 mm
  
• Approximate battery life: 7 years for CR2016
  
• Weight: 21 g
  
• Accuracy: ±30 seconds per month

*Photo for reference only.