Citizen Eco Drive AT2527-80X Chronograph Men's Watch ✅Movement: Eco-Drive Caliber H500 ✅Power Reserve: Approximately 5 months (When fully charged) ✅Chronograph ✅Stopwatch ✅Date Display ✅24-hours Display ✅Low-Charge Warning ✅Overcharge Protection ✅100 Meter Water Resistant ✅Scratch-resistant mineral crystal ✅Case Material: Stainless Steel ✅Case Diameter: 43.5mm ✅Thickness: 12.3mm