Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of your Timex Ironman T300 Digital Watch, model TW5M47500. Please read this guide thoroughly to ensure proper use and to maximize the functionality of your watch.
Product Overview
The Timex Ironman T300 is a robust digital watch designed for active lifestyles. It features a clear digital display, durable black rubber strap, and multiple functions to support your daily activities and training.

Figure 1: Front view of the Timex Ironman T300 Digital Watch, displaying the time, date, and various mode icons. The watch features a black case with red accents and a black rubber strap.
Setup
1. Initial Activation and Time Setting
Your watch comes with a pre-installed battery. To set the time and date:
- Press and hold the SET button (typically on the top left or right) until the time display flashes.
- Use the START/STOP and RESET/LAP buttons (usually on the right side) to adjust the flashing digit.
- Press the MODE button to move to the next setting (e.g., minutes, hour, 12/24-hour format, year, month, day).
- Repeat step 2 and 3 until all settings are correct.
- Press SET again to exit the setting mode.

Figure 2: Side view of the Timex Ironman T300 Digital Watch, highlighting the buttons used for setting and mode selection. The red button on the side is visible.
Operating
1. Navigating Modes
Press the MODE button to cycle through the watch's functions. Typical modes include:
- Time Mode: Displays current time, date, and day of the week.
- Chronograph (Stopwatch) Mode: For timing events.
- Timer Mode: Countdown timer.
- Alarm Mode: Set daily alarms.
2. Using the Chronograph
- Navigate to Chronograph mode using the MODE button.
- Press START/STOP to begin timing.
- Press RESET/LAP to record a lap time without stopping the main timer.
- Press START/STOP again to pause the timer.
- Press RESET/LAP (while paused) to reset the chronograph to zero.
3. Using the INDIGLO® Night-Light
Press the LIGHT button (usually top left) to illuminate the watch face for visibility in low-light conditions.
Maintenance
1. Cleaning Your Watch
To clean your watch, wipe it with a soft, damp cloth. Avoid using harsh chemicals or abrasive materials, which can damage the finish or seals.
2. Water Resistance
The Timex Ironman T300 is water resistant up to 100 meters (330 feet). This makes it suitable for showering, swimming, and snorkeling. Do not press any buttons while the watch is submerged, as this can compromise the water resistance.
3. Battery Replacement
The watch uses a CR2025 battery. When the display dims or functions become erratic, it may be time to replace the battery. Battery replacement should ideally be performed by a qualified watch technician to ensure proper sealing and water resistance. Refer to the back of the watch for battery type information.

Figure 3: Close-up view of the watch's stainless steel back, indicating "CR2025 BATTERY" and "WATER RESISTANT 100 METERS," along with the Timex logo and website.
Troubleshooting
- Display is blank or dim: The battery may be low or depleted. Replace the battery (CR2025).
- Buttons are unresponsive: Ensure the watch is not in a locked mode (if applicable). If not, a battery replacement might resolve the issue, or contact support.
- Time is incorrect: Re-enter the time setting mode and adjust the time and date as described in the "Setup" section.
- Water inside the watch: Immediately cease use and contact Timex customer support or an authorized service center. Do not attempt to open the watch yourself.
Specifications
| Feature | Detail |
|---|---|
| Model Number | TW5M47500 |
| Brand | Timex |
| Display Type | Digital |
| Display Size | 1.54 inches |
| Material | Silicone (Strap) |
| Colour | Black |
| Water Resistance | 100 Meters |
| Battery Type | CR2025 (Lithium-Ion) |
| Item Weight | 250 g |
| Product Dimensions | 4 x 10 x 6 cm |
| UPC | 194366171587 |
Warranty and Support
Your Timex Ironman T300 Digital Watch is covered by a manufacturer's warranty. For specific warranty terms, please refer to the documentation included with your purchase or visit the official Timex website. For technical support, service, or parts, please contact Timex customer service directly.
Official Timex Website: www.timex.com





