New extremely light and strong Super Titanium material developed by Citizen after years of research. Titanium Case Titanium Bracelet Made in Japan Eco-Drive (recharged by any light source, no need to change battery) Caliber B612 Sapphire Crystal Black Dial Date Display Chronograph Insufficient Charge Warning Function Overcharge Prevention Function 100M Water Resistant Case Diameter 48mm (with crown) Case Thickness 11mm Weight 90g