Movement Eco Drive with light charge. Functions Radio controlled. World time. Moon phases and perpetual calendar. Characteristics Super Titanium case and bracelet. Personalized caseback with 24 time zone engraving. Sapphire glass with anti-reflective treatment. Wr 10 bar. Dimensions Case diameter 43 mm Further details Item code BY1010-81L Technology Function Radio controlled Movement type Eco Drive Power reserve 2.5 years World Time Yes Case material Super Titanium Case finish Super Titanium Glass Sapphire Strap type Metal bracelet Strap material Super Titanium Dial color Blue Waterproof WR 10 Bar Case diameter (mm) 43.00 Thickness (mm) 10.90 Weight (gr) 101.00.