Nivada Grenchen 35004M40 Antarctic 35mm Eggshell White Luminova Automatic G-Shock Mid-Size Ana/Digital Super Illuminator GA800-4A a Pulse Ox² sensor uses

a Pulse Ox² sensor uses light beams at your wrist to gauge how well your body is absorbing oxygen

Casio’s original Core Guard Structure protects vital components of the watch from the forces of impact

Module: 5413

Reference H76706730

Nivada Grenchen 35004M40 Antarctic 35mm Eggshell White Luminova Automatic G-Shock Mid-Size Ana/Digital Super Illuminator GA800-4A a Pulse Ox² sensor usesMovement: Automatic Caliber: Caliber 11 Frequency: 28,800 vibrations per hour (4Hz) Number of Jewels: 18 Power Reserve: 36 Hrs Case Diameter: 35mm Case Length (Lug to Lug): 41. 9mm Case Height: 7mm Thickness including glass: 10. 1mm Case Material: 316 Stainless steel Case Finish: Polished, satin brushed Case back: Closed, 'Penguin' engraving, gold medallion Dial: Eggshell Domed, Silver applied indexes, White Super Luminous Glass: Double Domed Sapphire