Casio G-Shock - GM2100 Series - Midnight Fog Bracelet Your heart rate and speed

Your heart rate and speed is used to calculate a VO2 max value

Kit-Cat Klocks® have been made in America exclusively by the California Clock Company since 1932

Case Shape: Octogonal

Screw-down crown and 100M water-resistance rating

Markers: Bronze Arabic numerals

Casio G-Shock - GM2100 Series - Midnight Fog Bracelet Your heart rate and speedStep into a world of midnight fog with timepieces in shimmering sophisticated hues. Metal components are honed and finished in color ion plating for a rich matte feel, while band and case wear complementary color tones to add a touch of balanced contrast. Translucent bands in muted neutral shades fade to near colorlessness, evoking the ethereal quality of a night fog. Specifications Case bezel material: Resin Stainless steel Resin Band Neobrite Shock