Casio Classic Sports Chronograph Alarm F 91W 3SDG F91W 3SDG Men's Watch COA:SIN no need to change battery) GM26046 no need to change battery) Sapphire Glass White Dial Black Roman Numerals Insufficient Charge Warning Function Overcharge Prevention Function Time Setting Warning Splash Water Resistance Case Diameter 39mm Case Thickness 4 9mm Approximate Case Thickness: 12 Brand: Casio Description: Features: Resin Case Resin Strap Chronograph Function Measurement Mode 1 100 Second Digital Stopwatch Daily Alarm Micro Light Auto Calendar Hourly Time Signal 12 24 Hour Formats AM PM Display Accuracy: + 30 Seconds Per Month Day Dispay 30M Water Resistance Approximate Size Of Case: 38 5mm Item Number: F 91W 3SDG Condition: Brand new in box with tags Gender: Male Case Diameter: Water Resistance Depth: 30M Case Thickness: Lug Width: Caliber: Dial Material: Display Type: digital item_weight: 500 g Movement: japanese quartz Description: Features: Resin Case Resin Strap Chronograph Function Measurement Mode 1 100 Second Digital Stopwatch Daily Alarm Micro Light Auto Calendar Hourly Time Signal 12 24 Hour Formats AM PM Display Accuracy: + 30 Seconds Per Month Day Dispay 30M Water Resistance Approximate Size Of Case: 38