[MEN[ Casio G-Steel GMW [GMW-B5000SB-1A2DR]

Defined by the ongoing commitment to delivering ultimate toughness with bold creativity, G-SHOCK presents the GMW-B5000SB, inspired by a “Gem Accents” theme. Blue sapphire brilliance, brought to life with G-SHOCK toughness, gives the exterior a striking new look. The bezel, with its iconic shape inherited from the very first G-SHOCK, is set with four lab-grown blue sapphires, second in hardness only to diamonds. Their round brilliant cut catches the light from every angle, while blue accents around the face echo their striking radiance. The black IP bezel, inverted LCD, and black soft urethane band complete the powerful all-black design, allowing the blue details to stand out. The original full-metal shock-resistant structure has been updated to accommodate the blue sapphire settings. The holes bored through the bezel dimples are fitted with stainless-steel mounting bases and rubber buffering components that support each gemstone securely from below. This preserves the original shock-resistant performance while making the blue sapphire design possible. Carefully applied mirror and hairline finishes further emphasize the texture of the hard metal, revealing the sculptural beauty of the full-metal exterior. Bold black meets serene blue, reflecting the enduring G-SHOCK pursuit of strength and beauty.

Dimensions & Build
Case Size: 49.3 × 43.2 × 13 mm
Weight: 98 g
Material: Stainless steel 
Band: Resin Band
Glass: Mineral Glass
Back Plate: Screw lock back
Band Size Compatibility: 145–215 mm
Water Resistance: 200 meters
Construction: Shock Resistant

Power & Battery
Power Supply: Tough Solar (solar-powered)
Battery Life: 10 months on rechargeable battery (operation period with normal use without exposure to light after charge)
22 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)

Smartphone Link & App Features
Bluetooth® Connectivity: Links with smartphones for advanced functionality
App Compatibility: CASIO WATCHES app
Features: Auto time adjustment, easy watch setting, access to approximately 300 world time cities, time & place logging, reminder notifications, phone finder

Key Features
World Time: 5 World time, 39 time zones (39 cities +coordinated universal time), auto summer time (DST) switching, home city/world time city swapping
Stopwatch: 1/100-second precision (first 60 minutes), measuring capacity: 00'00''00–59'59''99 (first 60 minutes), 1:00'00–23:59'59 (after 60 minutes), modes: elapsed time, lap time, split time
Countdown Timer: Range from 1 second to 60 minutes, measuring unit: 1 second, adjustable in 1-second or 1-minute increments
Alarms: 5 daily alarms, hourly time signal
Lighting: LED backlight (Super illuminator), Full auto LED light, selectable illumination duration (2 seconds or 4 seconds), afterglow, color: white
Calendar: Full auto-calendar (to the year 2099)

Timekeeping & Accuracy
Time adjustment: Radio-controlled Watch; Multi band 6
Bluetooth: Connects to a smartphone and automatically adjusts the time
Additional Features: 12/24-hour format, Date/month display swapping, Day display (days of the week selectable in six languages), Regular timekeeping: Hour, minute, second, pm, month, date, day
Accuracy: ±15 seconds per month (without mobile link function)