The case is filled with a special oil that emphasizes the dial and increases readability

which allows view of the automatic movement

White and Red Dial - White Pencil-Shaped Hands with Red Baton Hour Indices

How does the dual time function help

Casio G-Shock Watch Men's G-Rescue Red SBH20 The case is filled withJapanese Quartz Movement. World Time, Moon Data, Tide Graph, Low Temperature Resistant ( 20), Stopwatch, Timer, Alarm, Flash Alert and Auto Calendar Functions. 55. 1mm x 52. 5mm x 16. 3mm Red Resin and Stainless Steel Case. Characteristic Shock Proof Case with Easy to Press Button Arrangement Black Digital Display with White Accents and Scratch Resistant Mineral Crystal. 28mm Red Resin Strap with Stainless Steel Pin Buckle Water Resistant to 200