PRT-B50 Series

PRT-B50-1

A model from "PRO TREK" that improves outdoor usability by linking to the dedicated "CASIO WATCHES" app via Bluetooth®. Realizes a quad sensor able to measure number of steps, direction, altitude/barometric pressure, and temperature. Records calories burned, altitudes acquired by the watch, and routes acquired via smartphone GPS in the app. Automatic time adjustment is made possible worldwide via simplification of various settings. It is also able to automatically correct the altimeter and calculate sunrise and sunset times. Also makes it possible to turn modes on/off, and to enjoy customization by switching the displays on the app. The fine resin back cover uses a structure that integrates with the lugs. Both the button guard and case have been made more robust. The wide dial uses Arabic indices to ensure high visibility. Metal parts are used for the bearing indicator, and colors reminiscent of the outdoors are used as accents. Additionally, the entire surface of the urethane band has been given a 3D texture to prevent the band keeper from slipping, which improves usability in outdoor scenarios.

Great for climbing
Easy to operate via smartphone
10 bar water resistant
Lets you know your direction
Lets you know the barometric pressure and altitude
Lets you know the temperature

Specifications

Case size (L× W× H)

57.5 × 50.8 × 15.8 mm

Weight

64 g

Case and bezel material

Resin

Band

Resin Band

Water resistance

100-meter water resistance

Environmental resistance

Low-temperature resistant (-10℃/14℉)

Power supply and battery life

Approx. battery life: 2 years on CR2025

Sensor feature

Step count using a 3-axis acceleration sensor: 0 to 999,999 step count display range Power Saving: Auto sensor sleep state entry after fixed period of non-activity

Altimeter Measuring range: -700 to 10,000 m (-2,300 to 32,800 ft.) Measuring unit: 1 m (5 ft.) Hand indication graph of altitude differential Manual memory measurements (up to 14 records, each including altitude, date, time) Auto log data (High/low altitudes, cumulative ascent and descent) Others: Relative altitude readings (±100 m /±1000 m), selectable measurement interval: 5 seconds or 2 minutes (1 second for first 3 minutes only) *Changeover between meters (m) and feet (ft)

Barometer Measuring range: 260 to 1,100 hPa (7.65 to 32.45 inHg) Measuring unit: 1 hPa (0.05 inHg) Hand indication of pressure differential (±10 hPa) Atmospheric pressure tendency graph (last 20 hours or last 56 hours) Barometric pressure tendency information alarm (beep and arrow indicates significant changes in pressure) The atmospheric pressure tendency graph can show the last 20 minutes or last 56 minutes of measurements. The hand indication of pressure differential shows values in units of ±0.1 hPa. *Changeover between hPa and inHg

Digital compass Measures and displays direction as one of 16 points Measuring range: 0 to 359° Measuring unit: 1° 60 seconds continuous measurement Hand indication of north Magnetic declination correction Direction calibration (2-point calibration, figure eight calibration, auto calibration)

Thermometer Measuring range: -10 to 60℃ (14 to 140℉) Measuring unit: 0.1℃ (0.2℉) *Changeover between Celsius (℃) and Fahrenheit (℉)

World time

World time 38 time zones (38 cities + coordinated universal time), daylight saving on/off, Home city/World time city swapping

Sunrise/sunset display

Sunrise, sunset time display Sunrise time and sunset time for specific date

Stopwatch

1/100-second stopwatch 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, split time, 1st-2nd place times

Timer

Countdown timer Measuring unit: 1 second Countdown range: 24 hours Countdown start time setting range: 1 second to 24 hours (1-minute increments and 1-hour increments)

Alarm/hourly time signal

5 daily alarms

Hourly time signal

Light

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

Light color

LED:White

LED:Neon Illuminator (Blacklight LED)

Calendar

Full auto-calendar (to year 2099)

Mute feature

Button operation tone on/off

Accuracy

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

Other features

12/24-hour format

Hand shift feature

Regular timekeeping: Analog: 3 hands (hour, minute (hand moves every 10 seconds), second) Digital: Hour, minute, second, am/pm, month, date, day

SMARTPHONE LINK

(Mobile link)

CASIO WATCHES

Display records of your activity, such as routes you have traveled and calories burned.
You can also use your smartphone to change various watch settings.

Confirmed OS version

Automatic Time Adjustment

The watch is reset regularly 4 times a day by the smartphone to show both home time and world time correctly. You can also reset the watch manually with just a push of a button when crossing between time zones. The precise time in the current location is displayed instantly with DST (daylight saving time) taken into account.

World Time for over 300 cities

The smartphone app can be used to conduct world time city selection. After a city is selected by touch from a world map or a city list containing over 300 cities, the time in the selected city is displayed on an inset dial with DST (daylight saving time) taken into account.

Accurate Time System

Accurate time information (UTC) is acquired by a smartphone from a time server on the Internet. The smartphone then analyzes this time data and its own current positioning data regarding the time zone and DST (daylight saving time) status of the current location and resets the watch to the correct time automatically. Since Wi-Fi communication is also possible, the smartphone can also acquire time information in indoor environments such as airports or subways.