Casio Pro Trek PRJ-B001-1 Tough Solar Bluetooth Men's Watch

The Casio Pro Trek PRJ-B001-1DR Men's Watch is built for explorers who demand lightness, durability, and modern functionality in one adventure-ready package. As the lightest PRO TREK ever, it features a rugged yet eco-friendly bio-based resin case, measuring a comfortable 46mm, paired with a soft urethane band for long treks. The black dial is enhanced with fluorescent accents on the bezel and numerals, offering high visibility against the watch’s bold, outdoor-ready design. This model debuts PRO TREK’s first rotary guard bezel, allowing you to switch between a sleek, button-protected mode for daily wear and an open, functional mode for quick access to essential trekking features. Equipped with Bluetooth connectivity, the watch syncs automatically with your smartphone, enabling time adjustment and one-touch logging of date, time, and location on a map. Powered by Tough Solar, it stays charged even on extended trips. Weighing just 44g, and offering 100 meters of water resistance plus -10°C low-temperature resistance, it’s built to perform in harsh environments while maintaining exceptional comfort. With a 2-year Watch Zone warranty and the reliability you expect from PRO TREK, the PRJ-B001-1DR is the ultimate companion for discovering new paths and reliving every adventure.UPC: 4549526381430

Smartphone Link/App Connectivity Features

Mobile link (Wireless linking using Bluetooth®)

Apps: CASIO WATCHES

App connectivity feature

Auto time adjustment

Easy watch setting

Approximately 300 world time cities

Time & place

Phone finder

Watch Features

World time

38 time zones (38 cities + coordinated universal time), city code display, city name display, daylight saving on/off, auto summer time (DST) switching, Home city/World time city swapping

Stopwatch

1/100-second stopwatch Measuring capacity: 00'00''00~59'59''99 (for the first 60 minutes) 1:00'00~23:59'59 (after 60 minutes) Measuring unit: 1/100 second (for the first 60 minutes) 1 second (after 60 minutes) Measuring modes: Elapsed time, lap/split time

Timer

Countdown timer Measuring unit: 1 second Countdown range: 60 minutes Countdown start time setting range: 1 second to 60 minutes (1-second increments and 1-minute increments)

Alarm/hourly time signal

5 daily alarms

Hourly time signal

Light

Double LED light LED light for the face (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow) LED backlight for the digital display (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)

Light color

LED: White

Calendar

Full auto-calendar (to year 2099)

Mute feature

Button operation tone on/off

Energy saving feature

Power Saving (display goes blank to save power when the watch is left in the dark)

Battery display/alert

Battery level indicator

Run time

Approx. battery operating time: 7 months on rechargeable battery (operation period with normal use without exposure to light after charge)

18 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)

Accuracy

Accuracy: ±15 seconds per month (with no mobile link function)

Other features

Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.)

12/24-hour format

Day display (days of the week selectable in six languages)

Regular timekeeping: Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (battery level, mode) Digital: Hour, minute, second, pm, month, date, day