PRJ-B001 Series

PRJ-B001-1

Rotary guard bezel lets you switch things up
The button-covering position prevents accidental button presses while out walking or in town.
Comfort sizing and colors that coordinate
Back engraving
Time & place function gives you more ways to enjoy the outdoors
45-degree turn of the rotary guard bezel
From left: PRJ-B001-1, PRJ-B001B-2, PRJ-B001-7

Get off the beaten path and go beyond, with the lightest* PRO TREK yet, the perfect companion for long trails and ultralight hikes. The PRJ-B001 takes it up a notch with the first rotary guard bezel in the PRO TREK line. Turn the rotating bezel to switch between two distinct styles. When set to present a stylish angular design that complements everyday fashion, the bezel covers the buttons, preventing accidental pressing of buttons while out walking or in town. Turn the bezel 45 degrees to the rounder look and uncover the buttons for easy access to functionality while out hiking or training. The watch features a soft urethane band for stress-free wear even over long stretches of hiking. In charcoal gray or off white to coordinate beautifully with nature, with touches of fluorescent color in the numbers and bezel, this timepiece is designed to complement outdoor fashions. Key resin components used in the case, band, and other parts are made with bio-based resin, a material expected to help reduce environmental impact. Far beyond just ease and style, this watch offers superior functionality, too, with Tough Solar charging and Bluetooth® to pair with a smartphone. Press a button on the watch to record date, time, and position on a map within the app, a useful way to log your activity. Reminisce about the breathtaking places you’ve been, and take note of places you want to go again. The lightest PRO TREK yet charts your course to all-new ways of appreciating the great outdoors. *As of July 2024

Rotary guard bezel lets you switch things up
The button-covering position prevents accidental button presses while out walking or in town.
Comfort sizing and colors that coordinate
Back engraving
Time & place function gives you more ways to enjoy the outdoors
45-degree turn of the rotary guard bezel
From left: PRJ-B001-1, PRJ-B001B-2, PRJ-B001-7

Keeps yourself in time
Easy to operate via smartphone
10 bar water resistant
Stable solar power

Specifications

Case size (L× W× H)

50.3 × 46 × 13.6 mm

Weight

44 g

Case and bezel material

Resin / Bio-based resin

Band

Bio-based resin band

Water resistance

100-meter water resistance

Environmental resistance

Low temperature resistant (-10℃)

Time adjustment

Bluetooth: Connects to a smartphone and automatically adjusts the time

Power supply and battery life

Tough Solar (Solar powered)

Smartphone Link feature

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

World time

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

Operation Guide

MOVIE

STYLING PHOTOS

FEATURES

Rotary guard bezel lets you switch things up

Turn the rotating bezel to switch between two distinct styles. The button-covering position prevents accidental button presses while out walking or in town. A 45-degree turn of the bezel ensures easy button access, making outdoorsy functions like the light and Smartphone Link even more user friendly.

Comfort sizing and colors that coordinate

The lightest timepiece of the PRO TREK line fits Bluetooth® and Tough Solar into a compact case, with a sloping back for less interference with the back of the hand. It stays comfortable even when worn for long periods, and allows the wrist to move and bend smoothly. Charcoal gray, off-white, and dusty blue colorways harmonize with nature, while fluorescent accents add a sporty touch to outdoor functions.

Time & place function gives you more ways to enjoy the outdoors

Pressing a button on the watch records the current time and position on a map within the dedicated smartphone app via Bluetooth®, making it useful as an activity log. Find new ways to appreciate the outdoors by reminiscing about breathtaking scenic spots and taking note of places to revisit.

DETAILS

Inset dial with a carabiner motif

The indicator hand on the inset dial at the 9 o’clock position is modeled after a carabiner. Design and readability come together in its fluorescent accent color.

Attention to materials: Bio-based resin

Key resin components used in the case, band, and more are made with bio-based resin. Produced using renewable organic resources, the material is expected to help reduce environmental impact.

*Image is included for illustrative purposes only.