Model: Citizen AT8238-84M Movement Type: Eco-Drive (solar-powered, no battery change required) Caliber: H800 Analog Chronograph Radio-Controlled: Yes – receives atomic time signals (Europe, Japan, USA, China) Accuracy: ±15 seconds/month (without radio sync) Power Reserve: 180 days (approx.) Energy Saving Mode: Yes Battery Discharge Indicator: Yes Chronograph Function: Stopwatch up to 60 min, 1/20 sec precision World Time: Yes – displays local time for 26 cities/time zones Perpetual Calendar: Yes 24-Hour Display: Yes Day & Date Display: Yes Dial Color: Light blue, Tiffany color Dial Index: Stick/markers Glass: Sapphire crystal Case Material: Super Titanium Case Diameter: 43.5 mm Case Thickness: 10 mm Case Shape: Round Case Color: Titanium white Bracelet Material: Super Titanium Bracelet Color: Titan white Bracelet Features: Massive bracelet with safety folding buckle Water Resistance: 10 bar / 100 meters Antimagnetic: Yes Weight: Approx. 90 g