CASIO G-SHOCK GR-B300RY-1A9JF

No warranty

1-2 days

The G-SHOCK MASTER OF G series supports activities in harsh environments. The black body, which symbolizes toughness, is paired with caution-color yellow on the band. It expresses the worldview of professionals taking on harsh missions at rescue sites and similar environments. The organic form inspired by next-generation aircraft is expressed through a seamless exterior design. Carbon Core Guard structure and a 3D wide face are used to pursue durability, visibility, and comfort. It is also equipped with practical functions such as dual time, which displays the time in two cities simultaneously, and a flight log for managing travel history. (From official website)

Case/Bezel: Carbon fiber reinforced resin (biomass plastic), resin (biomass plastic), stainless steel / Belt: Resin band (biomass plastic)

Surface treatment: Black IP (bezel part)

Case size (L×W×Thickness): 59×54.7×15.7 mm / Weight: Approx. 71g

Approx. 14.5-21.5 cm

Tough Solar (solar charging system) / Accuracy: When not connected to a smartphone, it operates with normal quartz accuracy (average monthly difference of ±15 seconds)

Inorganic glass

20 bar water resistance

Shock-resistant structure / Carbon Core Guard structure / Screw-lock crown / Neobrite / Dual time (with home time swapping function) / Stopwatch (1 second, 24-hour counter, with split) / Timer (set unit: 1 minute, maximum set: 24 hours, measured in 1-second increments) / Daily alarm / LED light (Super Illuminator, with afterglow function) / LED: White / Full auto calendar / Power saving function (the hands stop moving to save power after a certain period in the dark) / Battery indicator display / Operating time from full charge without solar power... When using functions: approx. 5 months; In power-saving state: approx. 18 months / Date/day display / Mobile link function (function linkage via Bluetooth communication with supported mobile phones) Compatible with the "CASIO WATCHES" app (automatic time adjustment, easy clock settings, world time for approx. 300 cities, flight log, phone finder)

Outer box, inner box, and instruction manual included