CITIZEN CA4640-50E

The Citizen CA4640-50E is an Eco-Drive (solar-powered) chronograph watch with a stainless steel case and bracelet, and a water resistance of 100 meters. 

• Movement: Eco-Drive (solar-powered), Caliber B620
• Case Material: Stainless Steel
• Case Diameter: 41 mm (some sources also list 42.8 mm)
• Case Thickness: 12 mm
• Band Material: Stainless Steel bracelet with a deployment clasp
• Glass: Mineral Crystal
• Dial Color: Black with silver-tone hands and markers
• Water Resistance: 10 bar (100 meters / 330 feet), suitable for swimming and water activities
• Functions:
  • 1/5-second Chronograph (measures up to 60 minutes)
  • Date display (between the 4 and 5 o'clock positions)
  • 24-hour display
  • Insufficient Charge Warning Function
  • Overcharge Prevention Function
• Power Reserve: Approximately 9 months on a full charge under normal use conditions
• Weight: Approximately 143g