Casio G-SHOCK GST-B400-1AER

Casio watch — G-SHOCK collection.

With its ultra-thin module housed in a carbon fibre case, this elegant G-STEEL watch is the slimmest* to date. Both tough and lightweight, the Carbon Core Guard structure absorbs external impact and protects the Bluetooth connectivity and solar power function, even though the components are smaller and housed in a thinner module. At just 12.9 mm from the case back to the top of the bezel, the GST-B400 is more than a millimetre slimmer than its predecessor. You have a choice of four different styles: the simplicity of a silver metal bracelet with a matching case, the contrast of a light silver case with a dark resin strap, a dial with a vivid red vapour-deposition finish paired with a black ion-plated bezel, or a dial with a deep blue vapour-deposition finish with a black ion-plated bezel and bracelet. With five different finishes for the top bezel and four for the centre bezel, G-STEEL watches offer outstanding metallic textures from every angle. * Slimmest profile as of December 2020

• Power source and battery life: Solar
• Strap: Resin strap
• Colour: Black
• Case and bezel material: Resin/Stainless steel
• Glass: Mineral glass
• Water resistance: 12/24-hour format|Date/month display switching|Day display (days of the week can be selected in six languages)|Hand-shift function (to provide an unobstructed view of the digital display content.)|Standard timekeeping: Analogue: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (battery charge level, mode) Digital: Hour, minute, second, 12-hour format, month, date, day
• Case size (L× W× H): 46.6 x 49.6 x 12.9 mm
• Weight: 80.0 g
• Structure: Shock resistant|Carbon Core Guard structure
• Bluetooth communication: Smartphone link function
• Reference: GST-B400-1AER
• EAN: 4549526303593

User manual