Casio HS-6-2JH
CASIO HS-6-2JH Stopwatch Instruction Manual
Model: HS-6-2JH
1. Product Overview
The CASIO HS-6-2JH is a compact and lightweight digital stopwatch designed for precise time measurement. It features a simple interface for various timing functions, including normal measurement, accumulated time, lap/split times, and 1st/2nd place finishes. Its design prioritizes ease of use and silent operation.

Image 1: The CASIO HS-6-2JH Stopwatch, showcasing its ergonomic design and compact size.
Key Features:
- 1/100 Second Stopwatch: Measures time with high precision.
- 10-Hour Meter: Capable of timing events up to 10 hours.
- Multiple Measurement Modes: Includes normal time, accumulated time, lap time, split time, and 1st/2nd place finishes.
- Silent Operation: Buttons are designed to operate without producing audible feedback.
- Long Battery Life: Approximately 3 years with a single CR2025 button battery.
- Lightweight and Ergonomic Design: Easy to hold and operate.
2. Setup
Battery Installation
The CASIO HS-6-2JH Stopwatch operates on one CR2025 button battery. The battery is typically pre-installed. If the display is dim or blank, battery replacement may be necessary.
- Locate the battery compartment on the back of the stopwatch.
- Using a small Phillips-head screwdriver, carefully remove the screws securing the battery compartment cover.
- Remove the cover and gently extract the old CR2025 battery.
- Insert a new CR2025 battery with the positive (+) side facing up.
- Replace the battery compartment cover and secure it with the screws. Ensure the cover is properly sealed.
After battery installation, the stopwatch display should activate. If not, ensure the battery is correctly inserted and fully charged.
3. Operating Instructions
The stopwatch features three primary buttons: START/STOP, SPLIT/LAP, and MODE. Refer to the image below for button locations.

Image 2: Front view of the stopwatch, highlighting the display and control buttons.
Basic Stopwatch Functions (Normal Measurement)
- Press the MODE button until the stopwatch display shows "0:00'00"00".
- Press START/STOP to begin timing.
- Press START/STOP again to pause the timing.
- To resume, press START/STOP.
- To reset the stopwatch to zero, press SPLIT/LAP while the stopwatch is stopped.
Lap and Split Measurement
This function allows you to record intermediate times (lap) and cumulative times (split) during an event.
- Start the stopwatch by pressing START/STOP.
- To record a split time (cumulative time from start), press SPLIT/LAP. The display will momentarily show the split time while the internal timer continues.
- To record a lap time (time for the current segment), press SPLIT/LAP again after a split time is displayed. The display will show the lap time.
- Repeat step 2 and 3 for subsequent splits and laps.
- Press START/STOP to end the timing.
- Press SPLIT/LAP to reset the stopwatch.
1st and 2nd Place Time Measurement
This mode is useful for recording the finish times of two competitors in a single event.
- Start the stopwatch by pressing START/STOP.
- When the first competitor finishes, press SPLIT/LAP. The display will show the 1st place time.
- When the second competitor finishes, press START/STOP to stop the timer.
- Press SPLIT/LAP to view the 2nd place time.
- Press SPLIT/LAP again to reset the stopwatch.
Silencing Feature
The CASIO HS-6-2JH is designed for silent operation, meaning button presses do not produce audible feedback. This feature is always active and does not require specific activation or deactivation steps.
4. Maintenance
Cleaning
- Wipe the stopwatch with a soft, dry cloth.
- For stubborn dirt, use a slightly damp cloth with mild soap, then wipe dry immediately.
- Do not use abrasive cleaners, solvents, or chemical sprays, as these can damage the casing and display.
Battery Replacement
Refer to the "Battery Installation" section under Setup for detailed instructions on replacing the CR2025 battery. Replace the battery when the display becomes dim or unresponsive.
Storage
Store the stopwatch in a cool, dry place away from direct sunlight, extreme temperatures, and high humidity. Avoid exposing it to strong magnetic fields.
5. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Display is blank or dim. | Low or dead battery. | Replace the CR2025 battery (refer to Section 2: Setup). |
| Stopwatch does not respond to button presses. | Battery issue or internal malfunction. | Ensure battery is correctly installed and charged. If problem persists, contact customer support. |
| Incorrect time displayed. | Accidental reset or mode change. | Reset the stopwatch to zero by pressing SPLIT/LAP when stopped. Ensure correct mode is selected. |
6. Specifications

Image 3: Dimensions of the CASIO HS-6-2JH Stopwatch.
| Feature | Detail |
|---|---|
| Model Number | HS-6-2JH |
| Brand | Casio |
| Dimensions (H x W x D) | Approx. 6.7 x 6.0 x 2.3 cm (2.6 x 2.4 x 0.9 inches) |
| Weight | Approx. 50 g (1.8 oz) / 0.07 Kilograms |
| Material | Resin |
| Power Supply | CR2025 Button Battery x 1 |
| Battery Life | Approx. 3 years |
| Stopwatch Functions | 1/100 second, 10-hour meter (normal, accumulated, lap/split, 1st/2nd place) |
| Special Features | Silent operation (no operation noise) |
| Country of Origin | China |
7. Warranty and Support
Warranty Information
This product comes with a standard manufacturer's warranty. Please refer to the warranty card included with your purchase for specific terms, conditions, and duration. Retain your proof of purchase for warranty claims.
Customer Support
For technical assistance, service, or inquiries regarding your CASIO HS-6-2JH Stopwatch, please contact your local Casio authorized service center or the retailer from whom you purchased the product. Contact details can typically be found on the Casio official website or in your product packaging.
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