G-Shock GRB200-1B Quad Sensor Gravitymaster Black and Gray TRAINMASTER Each bezel takes 60 minutes

Each bezel takes 60 minutes of precision engraving to achieve its three-dimensional effect

Case Diameter: 42 mm

while Super Illuminator ensures visibility

Pulsometer graduated for 15 pulsations

Available with a sleek stainless steel or unique bronze case

G-Shock GRB200-1B Quad Sensor Gravitymaster Black and Gray TRAINMASTER Each bezel takes 60 minutesStart with strong, lightweight carbon fiber, then add rugged style in a handsome black and gray color scheme. Now you're ready for anything. Designed for pros working in tough environments, this Bluetooth Quad Sensor GRAVITYMASTER takes advantage of carbon fiber's exceptional strength to weight ratio to take timekeeping to entirely new heights. The bezel, made from carbon fiber inserts pressed between layers of resin, delivers outstanding toughness