Casio Pro Trek Solar Bluetooth® Black Dial Men's Watch | PRJ-B001B-2

The Casio Pro Trek PRJ-B001B-2DR Men's Watch is engineered for explorers who demand ultralight comfort, rugged durability, and advanced outdoor functionality. As one of the lightest PRO TREK models at just 37g, it features a 46mm bio-based resin case with a 50.3mm lug-to-lug profile, offering eco-friendly toughness with minimal bulk. The dusty blue color scheme, paired with a blue Rotary Guard Bezel, brings a stylish, nature-inspired aesthetic that blends seamlessly with outdoor gear. The black digital dial is enhanced by fluorescent accents for superior readability on trails and in low light. Its innovative rotary guard bezel lets you switch between two modes—an angular, button-protected style for daily wear, or a rounded, open-access configuration ideal for hiking and quick function use.

A standout feature is the bungee-style cloth band, inspired by outdoor equipment. Breathable and stretchy, it offers exceptional comfort and can easily be worn over heavy jackets or directly on the wrist. Powered by Tough Solar, the watch charges naturally from sunlight or indoor light, while Bluetooth® connectivity provides smartphone linking, automatic time adjustment, and one-touch logging of date, time, and position via the app. Built with 100 meters of water resistance, scratch-resistant mineral glass, and reliable Japanese quartz movement, it’s ready for demanding adventures. Backed by a 2-year international warranty, the PRJ-B001B-2DR is the ideal companion for hikers, climbers, and outdoor travelers who want a lightweight, eco-conscious, and highly functional adventure watch. Available at Watch Zone BD. UPC: 4549526381539

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