Casio Pro Trek Tough Solar Smartphone Link Men's Watch | PRJ-B001-5DR

The Casio Pro Trek PRJ-B001-5DR Men's Watch is a lightweight, adventure-ready timepiece built for explorers who demand durability, smart functionality, and all-day comfort. Featuring a 46mm bio-based resin case with a 50.3mm lug-to-lug profile, this eco-friendly design offers toughness without extra weight—coming in at just 44g. The black digital display is paired with a rugged green Rotary Guard Bezel, allowing you to switch between a protective everyday mode and an open, accessible mode ideal for outdoor activities. Its brown resin strap adds a natural, earthy look, making it perfect for trekking, hiking, and travel. Powered by Tough Solar technology, the watch stays charged through sunlight or indoor light, while smartphone link connectivity ensures automatic time adjustment and enhanced outdoor functions via the PRO TREK app. The double white LED light provides excellent visibility in low-light environments, and the scratch-resistant mineral crystal protects the display during rugged use. With 100 meters of water resistance, a solid case back, and reliable Japanese quartz movement, the PRJ-B001-5DR is engineered for harsh conditions. Backed by a 2-year international warranty, it’s the perfect companion for adventure seekers who value performance, sustainability, and modern outdoor technology. Available at Watch Zone BD. UPC: 4549526392801

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