Brand / Model: Casio G-Shock DW-5900RS-1DR

Case Size: 51.4 × 46.8 × 15.5 mm

Weight: 60 g

Case Material: Resin (matte black finish)

Band Material: Resin Band (matte black)

Glass Type: Mineral Glass

Water Resistance: 200-meter water resistance

Battery Life: Approx. 5 years (CR2025 battery)

Display Type: Digital

Time Adjustment: Standard digital button controls

World Time: 29 time zones (48 cities) + UTC, daylight-saving ON/OFF and home-city ↔ world-city swapping

Stopwatch: 1/100-second stopwatch; measuring capacity: 59'59.99"; modes: elapsed time, split time, 1st–2nd place times

Countdown Timer: Countdown up to 24 hours

Alarms: 5 independent daily alarms + 1 snooze alarm + hourly time signal

Light: Electro-luminescent (EL) backlight with afterglow

Calendar: Full auto-calendar (up to year 2099)

Time Format: 12-hour and 24-hour format

Button Tone: On/Off (mute option)

Accuracy: ±15 seconds per month

Regular Timekeeping: Hour, Minute, Second, Month, Date, Day, PM indicator

Special Highlights: Revival of the classic 5900-series “three-eye” G-Shock with rugged shock-resistant build, 200 m water resistance, world time, full stopwatch/timer functionality, multiple alarms — combined with a matte-black stealth look and bold retro square design for a stylish, tough everyday digital watch.