Casio G-Shock G-Steel Men's Watch GST-B400BB-1A Analog-Digital GST-B400 Series Tough Solar (Solar powered) Mobile link (Wireless linking using Bluetooth®) MEN'S FASHION Battery life: about 10 years

Battery life: about 10 years (using CR2025)

easy-to-read

Sapphire crystal with non-reflective inside surface coating

Countdown Unit of measurement: 1 second Measurement range: 24 hours Start time setting range: 1 second ~ 24 hours (in 1 second / 1 minute / 1 hour increment)

storage of stopwatch measurement data

Casio G-Shock G-Steel Men's Watch GST-B400BB-1A Analog-Digital GST-B400 Series Tough Solar (Solar powered) Mobile link (Wireless linking using Bluetooth®) MEN'S FASHION Battery life: about 10 yearsFeatures G STEEL GST B400 Series NEW 05 2023 Revel in eclectic sophistication with the G STEEL fusion of metal and resin components in a popular all black G SHOCK. Tough construction meets stylish design in a black ion plated metal bezel set against a base of jet black. With its slim combination module and Carbon Core Guard structure, the black on black take of the GST B400 is a cool fashion statement ready for whatever you are. Specifications Basic