Casio G-Shock - GA2100 Series - Hidden Glow Weekender The case back is engraved

The case back is engraved with the Charles Darwin Foundation logo and name in Spanish

25 mm Case back Snapped Water resistance 5ATM / 50 m / 165 ft Crystal Sapphire Dial White mother-of-pearl

With unstable environments in mind

and the 4H crown indicates Dual Time

Casio G-Shock - GA2100 Series - Hidden Glow Weekender The case back is engravedUnlock your full potential, and bring whats hidden to the fore. Introducing the G SHOCK that glows in the dark. This line features luminescent parts set against a dark gray base a design inspired by the hidden talents we each have, but rarely reveal. We start with a base of gray to evoke the dark, then add luminescent components and white accents to the face, creating a monochromatic watch with an extra special glow. Search out a dark space and watch