G-Shock GSTB400AD-1A4 G-Steel Data Gemstone Quartz Its sleek design is housed

Its sleek design is housed in a 45

4R38 - Automatic Movement – Powered by the movement of the wearer - 41 Hours Power Reserve - 40

it's comfortable to wear throughout the day

V137 - Solar Powered – Powered by any light source - +/-15 seconds a month at normal temperature range (10°C and 60°C) - 6 Months Power Reserve - 30

G-Shock GSTB400AD-1A4 G-Steel Data Gemstone Quartz Its sleek design is housedIntroducing the new improved slim design G STEEL GST B400 with Bluetooth and Solar functions. G Shock Connected App Mobile Link (Wireless using Bluetooth) Tough Solar Stainless steel Bezel & Bracelet Mineral Glass Neobrite Shock Resistant Carbon Core Guard structure 200 meter water resistance