The Casio G-Shock GW-7900B-1 is part of the G-Rescue series, designed for high-performance and outdoor readiness. Its rugged case, large buttons, and reliable build make it ideal for both professionals and adventure seekers. The all-black color scheme with stealthy grey ion-plated accents gives it a bold, tactical look.

Key Features:

• Solar Atomic Timekeeping: Receives radio signals for automatic time adjustment and charges via solar power—no battery replacement needed.
• Shock Resistant: Built tough to handle daily wear, drops, and vibration.
• 200M Water Resistant: Ideal for water sports, marine activities, and everyday use.
• Tide & Moon Graphs: Tracks tidal changes and moon phases—perfect for boating, fishing, and outdoor activity.
• World Time: Displays current time in 31 time zones (48 cities + UTC).
• 1/100-Second Stopwatch: Measures elapsed time, split time, and first/second place times.
• Countdown Timer: Set intervals up to 24 hours.
• 5 Daily Alarms: Includes 1 snooze alarm.
• Auto EL Backlight: Full face illumination with afterglow, activated by tilt.
• Full Auto-Calendar: Pre-programmed through 2099.

Specifications:

• Case Size: 52.4 × 50 × 17.7 mm
• Weight: 71 g
• Case & Bezel Material: Resin
• Band Material: Resin
• Glass: Mineral Glass
• Power Supply: Tough Solar (Solar Powered)
• Time Sync: Multi-Band 6 Radio-Controlled Accuracy
• Battery Life: Approximately 9 months on full charge (without further exposure to light)

This G-Shock is built for those who need a dependable, tech-packed watch that thrives in rough conditions and looks great doing it.