Casio G-Shock Gravitymaster Men's Watch GR-B300-1A4 Shock Resistant Mobile link Bluetooth Tough Solar analog-digital combination Smartphone Link Model

Smartphone Link Model

Step Goal Progress Display (step count goal setting range: 1

2 × 34 × 10

local/world time switching

battery life: 2 years on SR927W × 2

Casio G-Shock Gravitymaster Men's Watch GR-B300-1A4 Shock Resistant Mobile link Bluetooth Tough Solar analog-digital combination Smartphone Link ModelFeatures MASTER OF G AIR GRAVITYMASTER The skys the limit! Introducing the GRAVITYMASTER GR B300, a piece of aviation inspired professional gear designed to work even in the harshest environments, from the G SHOCK MASTER of G line. The GR B300 features a Carbon Core Guard structure, which delivers the shock resistance, rigidity, and corrosion resistance of carbon material used in aircraft fuselages. The carbon fiber reinforced resin case and the