Citizen Eco-Drive Perpetual Chrono A-T Black Ion Mens Watch - AT400754E

Citizen Eco-Drive Perpetual Chrono A-T Black Ion Men's Watch - AT400754E

Features:

• Atomic Timekeeping: The Most Accurate Watch in the World
• 1 Second Chronograph Measures up to 60 Minutes
• Perpetual Calendar
• Radio Controlled in 5 Time Zones
• Alarm
• 12/24 Hour Time
• Power Reserve Indicator
• Non-Reflective Sapphire Glass
• Stainless Steel Black Ion Plating
• Water Resistant to 666 Feet (200 M)
• Fold Over Clasp with Hidden Double Push Button
• 42mm Case
• Never Needs A Battery

Specifications:

• Movement Caliber: E650
  
• Maximum Power Reserve at Full Charge: 370 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): 210 Hours
    
  • Outdoors, cloudy (10,000 Lux): 70 Hours
    
  • Outdoors, Sunny (100,000 Lux): 35 Hours