GST-B400D-1AER

GST-B400D-1AER -  ultra-thin module encased in carbon fiber makes for a stylish G-STEEL timepiece with the slimmest profile yet. Strong, yet lightweight, the carbon core guard structure absorbs external shocks and retains Bluetooth connectivity and solar power functionality even with smaller components and a thinner module. Measuring just 12.9mm from the back of the case to the top of the bezel, the GST-B400 is over a millimeter thinner than its predecessor.

GST-B400D-1AER
Spec

• Model No: GST‑B400D‑1AER

• Brand: Casio / G‑Shock (G‑STEEL series)

• Colour / Design: Silver stainless‑steel bezel and bracelet, black dial with elegant metallic finish

• Case Size (L × W × H): 46.6 × 49.6 × 12.9 mm

• Case Material: Carbon‑reinforced resin case + stainless‑steel bezel

• Band: Stainless‑steel bracelet with one‑touch 3‑fold clasp

• Glass Material: Mineral crystal

• Water Resistance: 200 metres / 20 BAR

• Construction: Shock resistant (Carbon Core Guard)

• Power Supply: Tough Solar (solar powered)

• Connectivity / Sync: Bluetooth smartphone link + (where supported) time sync functions

• Functions: World time, 1/100‑second stopwatch, countdown timer, 5 daily alarms, full auto calendar, double LED illumination (Super Illuminator), battery level indicator, auto hand shift for digital readability, power save mode