Citizen Eco-Drive Calibre 3100 Black Dial Mens Watch - BT000457E

Citizen Eco-Drive Calibre 3100 Black Dial Men's Watch, Model BT000457E

Features:

• Perpetual Calendar
• Twin Date Display
• Non-Reflective Crystal
• 12/24 Hor Time
• Screw-Back Case
• All Stainless Steel Two-Tone
• Water Resistant to 333 ft. (100m)
• Foldover Clasp with Hidden Double Push Button
• Never Needs a Battery

Specifications:

• Movement Caliber: E310
  
• Maximum Power Reserve at Full Charge: 365 Days
  
• Low Charge Warning: 3 Days
  
• Quick Start: No
  
• Charging Time From Stop State
  • Indoors, Office (500 Lux): 4 Hours
    Usually, overhead office light is insufficient to achieve a full charge from a completely depleted power reserve. We recommend that you use natural outdoor light, or an incandescant light source 20" from the watch for charging a watch in this state. However, office light is sufficient for keeping your watch continually charged
  • Incandescant 20" (3,000 Lux): 230 Hours
    
  • Outdoors, cloudy (10,000 Lux): 70 Hours
    
  • Outdoors, Sunny (100,000 Lux): 35 Hours
    

Approximate Weight:

• Shipping: 1 lbs