The G-SHOCK G-STEEL GST-B1000D-1A refines G-SHOCK toughness into a sleek, minimalist stainless-steel design inspired by the brand’s origins. A logo-free metal bezel with mixed hairline and mirror finishes pairs with a solid stainless-steel band and tri-fold clasp, delivering a sharp look that transitions effortlessly from work to everyday wear. Built for durability, the Carbon Core Guard structure, metal bezel, and carbon-reinforced resin case provide outstanding shock resistance, while 200 metres of water resistance ensures confidence in any environment. Tough Solar power delivers up to five months of operation—or up to 18 months in power-saving mode—and Bluetooth® smartphone connectivity enables automatic time adjustment and easy settings. Finished with mineral glass, a screw-lock crown, white LED Super Illuminator, full auto-calendar to 2099, and everyday functions including stopwatch, timer, and alarms, this is a compact, rugged timepiece designed for modern, all-round performance. - Case size: 46.9 × 44.2 × 11.6mm; weight: 118g - Bio-based carbon & stainless steel case with solid stainless steel band - One-touch 3-fold clasp; screw lock crown; mineral glass - Shock resistant with Carbon Core Guard structure - 200 metres water resistance - Tough Solar (solar powered) with power saving and low battery alert - Approx. battery life: 5 months (normal use) / 18 months (power save, total darkness) - Bluetooth® smartphone link with auto time adjustment, easy watch setting, time & place, phone finder - Accuracy: ±15 seconds per month (without mobile link) - LED light (Super Illuminator) with afterglow; white LED - Stopwatch, timer, daily alarm & hourly time signal - Full auto-calendar (to year 2099) - Regular timekeeping: analogue 3 hands, 24-hour sub-dial, day indicator & date display