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Casio G-Shock Runner Series

Casio G-Shock Runner Series
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Contact us for availability. Most "out of stock" bikes can be ordered and at the shop within a week!


With its 10 Year Battery, the STR300 Runner Series is not only powerful; it’s eco-friendly also. This long lasting power will translate in years of reliable training data. With a front-button activated 1/100th Second Stopwatch w/60-Lap memory, Pace Signal, Distance Calculation; you won’t want to leave on your next run without it.


Basic Information

Case size (L× W× H)
-48.2 × 35.2 × 12.1 mm

-30 g

Case and bezel material
-Case / bezel material: Resin

-Resin Band

Water resistance
-50-meter water resistance

Power supply and battery life
-Approx. battery life: 10 years on CR2025


-Resin Glass / Spherical Glass

Watch Features
-World time
-Dual time

-Stopwatch: Time and distance measurements
Measuring unit: 1/100 (lower part of the display for first 60 minutes, center part of the display for first 10 hours) or 1 second (lower part of the display after 60 minutes, center part of the display after 10 hours); 0.1 miles or km
*Changeover between kilometers (km) and miles (mi).

-Measuring capacity: 99:59'59"; 99.9 miles or km; 999.9 miles or km (total distance covered)

-Measuring modes: Elapsed time, lap/split times

Memory capacity: Up to 61 records (used by lap/split time records and log title screens); total distance covered

-Basic data input: Stride length 40 to 190 cm (16 to 76 inch)
*Changeover between centimeters (cm) and inch (in).

Others: Pacer signal; lap/split number (from 01 to 99); Best lap time screen


Countdown timer
-Measuring unit: 1 second
-Countdown range: 100 hours
-Countdown start time setting range: 1 minute to 100 hours (1-minute increments and 1-hour increments)

Other: Auto-repeat

Alarm/hourly time signal
-Daily alarms
-5 independent daily alarms (4 one-time alarms and 1 snooze/one-time alarm)
-Hourly time signal

-LED backlight
-Auto light switch, afterglow

Light color

-Auto-calendar (to year 2039)

-Accuracy: ±15 seconds per month

Other features

12/24-hour format

Regular timekeeping:
-Hour, minute, second, pm, year, month, date, day