G-Shock Digital & Analogue Watch G-Steel Series GSTB400-1A

Introducing new colour variations to the line up of slim G-STEEL GST-B400 models with new, improved designs made possible by a thin module and carbon core guard structure. There is a standard model in this line up, the GST-B400 with silver colour face and resin band.
The GST-B400 is made possible by even further miniaturization of its parts and thinning of its modules without sacrificing any Bluetooth or solar function. Power consumption has also been significantly reduced.
In addition, the carbon core guard structure of this model helps to make it the thinnest of the G-STEEL Series (as of Apr 2021) while maintaining a high level of impact resistance. 

• Case / bezel material: Resin / Stainless steel

• Resin Band

• Mineral Glass

• Neobrite

• Shock Resistant

• Carbon Core Guard structure

• 200-metre water resistance

• Tough Solar (Solar powered)

• Double LED light LED light for the face (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow) LED backlight for the digital display (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds),afterglow)

• Mobile link (Wireless linking using Bluetooth®)

• Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents)

• World time 38 time zones (38 cities + coordinated universal time), city code display, city name display, daylight saving on/off, auto summer time (DST) switching, Home city/World time city swapping

• 1/100-second stopwatch Measuring capacity: 00'00''00~59'59''99 (for the first 60 minutes) 1:00'00~23:59'59 (after 60 minutes) Measuring unit: 1/100 second (for the first 60 minutes) 1 second (after 60 minutes) Measuring modes: Elapsed time, lap/split time

• Countdown timer Measuring unit: 1 second Countdown range: 60 minutes Countdown start time setting range: 1 second to 60 minutes (1-second increments and 1-minute increments) • 5 daily alarms • Hourly time signal • Battery level indicator • Power Saving (display goes blank to save power when the watch is left in the dark) • Full auto-calendar (to year 2099) • 12/24-hour format • Button operation tone on/off • Date/month display swapping • Day display (days of the week selectable in six languages) • Regular timekeeping Analogue: 2 hands (Hour, minute (hand moves every 20 seconds)) 1 dial (battery level, mode) Digital: Hour, minute, second, pm, month, date, day • Accuracy: ±15 seconds per month (with no mobile link function) • Approx. battery operating time: 7 months on rechargeable battery (operation period with normal use without exposure to light after charge) 18 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge) • Size of case : 46.6×49.6×12.9mm • Total weight : 80g