Luminox Sea Turtle Giant XS.0321.BO.L Data Brand Casio battery operating time: *7 months battery operating time: *7 months on rechargeable battery (operation period with normal use without exposure to light after charge) *18 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge) Accuracy: ±15 seconds per month (with no mobile link function) 12 24 hour format its highly accurate chronograph stopwatch gives it high performance to compete with the best Swiss Made 44mm Case Size Carbonox Case Polyurethane Strap 50 Months of Approximate Battery Life Constant Glow for up to 25 Years Unidirectional Rotating Hardened Mineral Crystal 100 Meters Water Resistant If you’re looking for an oversized watch