Citizen AW1770-53L Carson Eco-drive men watch ✅Calibre No. J810 ✅Maximum run time from full charge ✅(Normal Use Condition) Approximately 8 months ✅Movement Eco-Drive ✅Strap :Stainless Steel ✅ Water Resistant to 10 bar /100m ✅Case Stainless Steel ✅Glass Sapphire Glass ✅Warranty : 3 years warranty ✅Case diameter: 42mm ✅Date Display ✅Eco-Drive (recharged by any light source, no need for regular battery replacement) ✅Insufficient Charge Warning Function ✅Overcharge Prevention Function