Product Overview

Image: Front view of the Timex Men's Ironman Triathlon Classic 30 Oversized 43mm Watch, displaying the digital time, day, and date.
The Timex Men's Ironman Triathlon Classic 30 Oversized 43mm Watch (Model T5K412SU) is designed for durability and functionality, featuring a robust resin case and strap. This digital watch offers a range of features for athletes and daily wear, including a chronograph, countdown timer, multiple alarms, and Indiglo backlight.
Key Features:
- Adjustable black 20mm resin strap, suitable for wrist circumferences up to 8 inches.
- 100-hour chronograph with 30-lap memory for tracking performance.
- 24-hour countdown timer for various activities.
- Three daily, weekday, or weekend alarms for reminders.
- 24-hour military time mode and two time zones for travel convenience.
- Day, date, and month calendar display.
- Silver-tone and black 43mm resin case with an acrylic lens and gray digital display.
- Indiglo light-up watch dial for visibility in low light conditions.
- Water resistant to 100 meters (330 feet), suitable for swimming and snorkeling, but not for scuba diving.
Setup
Setting Time and Date
To set the time and date on your watch, follow these steps:
- Ensure the watch is in the main timekeeping mode.
- Press and hold the SET/RECALL button (top-left) until "SET TIME" appears on the display.
- Use the START/SPLIT button (middle-bottom) to increase values or the STOP/RESET button (bottom-right) to decrease values.
- Press the MODE button (bottom-left) to cycle through hours, minutes, seconds, month, date, and year.
- Pay attention to the AM/PM indicator when setting the hour.
- Once all values are set, press the SET/RECALL button to confirm and exit the setting mode.
Video: Instructions on how to set the time and date on the Timex Ironman watch.
Adjusting Date Format (Month-Day vs. Day-Month)
To change how the date is displayed:
- From the main timekeeping mode, press and hold the SET/RECALL button until "SET TIME" appears.
- Press the MODE button repeatedly (approximately 8 times) until "DATE" appears on the display.
- Use the STOP/RESET button to toggle between Month-Day (MM-DD) and Day-Month (DD-MM) formats.
- Press the SET/RECALL button to confirm your selection and exit.
Video: Guide on how to adjust the date display format on the Timex Ironman watch.
Operating Instructions
Chronograph Mode
The chronograph function allows you to measure elapsed time with lap and split capabilities.
- From the main timekeeping mode, press the MODE button once to enter Chronograph mode. The display will show "CHRONO" and "00:00:00".
- Press START/SPLIT to begin timing.
- To record a lap time while the chronograph is running, press START/SPLIT. The display will momentarily show the lap time, then resume showing the running time.
- Press STOP/RESET to pause the chronograph. Press START/SPLIT to resume.
- To reset the chronograph to zero, press and hold STOP/RESET while the chronograph is paused.
- To recall stored lap times, press the SET/RECALL button while in Chronograph mode. Use START/SPLIT or STOP/RESET to navigate through the stored laps.
Video: Detailed guide on using the chronograph mode, including lap and split functions, on the Timex Ironman watch.
Countdown Timer Mode
The countdown timer can be set for durations up to 24 hours.
- From the main timekeeping mode, press the MODE button twice to enter Timer mode. "TIMER" will appear on the display.
- To set the timer, press the SET/RECALL button. The hour value will blink.
- Use START/SPLIT (plus) or STOP/RESET (minus) to adjust the hours, minutes, and seconds. Press MODE to move between hours, minutes, and seconds.
- After setting the desired time, press MODE one more time to access the "STOP AT END" or "REPEAT AT END" option. Use START/SPLIT or STOP/RESET to toggle this setting.
- Press SET/RECALL to confirm your timer settings.
- Press START/SPLIT to begin the countdown.
- Press STOP/RESET to pause the timer. Press START/SPLIT to resume.
- To reset the timer to its set value, press STOP/RESET while the timer is paused.
Video: Instructions for setting and using the countdown timer, including repeat options, on the Timex Ironman watch.
Alarms
The watch features three independent alarms (ALM 1, ALM 2, ALM 3) that can be set for daily, weekday, or weekend activation.
- From the main timekeeping mode, press the MODE button repeatedly until "ALM 1" (or ALM 2/3) appears.
- Press SET/RECALL to enter alarm setting mode. The hour will blink.
- Use START/SPLIT or STOP/RESET to adjust the hour and minute. Press MODE to switch between hour and minute.
- After setting the time, press MODE to select the alarm type (daily, weekday, weekend).
- Press SET/RECALL to confirm and exit.
- To turn an alarm ON/OFF, navigate to the desired alarm (ALM 1, 2, or 3) and press START/SPLIT. An alarm icon will appear when active.
- When an alarm sounds, press any button to silence it. The Indiglo backlight will flash during the alarm.
Video: Demonstration of the different alarm sounds and how to silence them on the Timex Ironman watch.
Hourly Chime
The hourly chime provides an audible alert at the top of every hour.
- From the main timekeeping mode, press and hold the SET/RECALL button until "SET TIME" appears.
- Press the MODE button repeatedly (approximately 9 times) until "CHIME" appears on the display.
- Use START/SPLIT or STOP/RESET to toggle the chime ON or OFF. A music note icon will appear when the chime is active.
- Press SET/RECALL to confirm your selection and exit.
Video: Instructions on how to activate or deactivate the hourly chime feature on the Timex Ironman watch.
Button Tones
You can enable or disable the audible feedback when pressing buttons.
- From the main timekeeping mode, press and hold the SET/RECALL button until "SET TIME" appears.
- Press the MODE button repeatedly (approximately 10 times) until "BEEP" appears on the display.
- Use START/SPLIT or STOP/RESET to toggle the button tone ON or OFF.
- Press SET/RECALL to confirm your selection and exit.
Video: Guide on how to turn the button tones (beeping sound) on or off on the Timex Ironman watch.
Hiding Modes
You can customize which modes are visible when cycling through them with the MODE button.
- From the main timekeeping mode, press and hold the SET/RECALL button until "SET TIME" appears.
- Press the MODE button repeatedly to navigate through the different modes (Chrono, Timer, Occasions, Alarms).
- When a mode is displayed, use START/SPLIT or STOP/RESET to toggle between "ON" (visible) and "HIDE" (hidden).
- Press SET/RECALL to confirm your selections and exit.
Video: Instructions on how to hide or show different modes on the Timex Ironman watch.
Maintenance
Water Resistance
This watch is water resistant to 100 meters (330 feet). It is suitable for swimming and snorkeling. However, it is not recommended for scuba diving.
- Do not press buttons underwater.
- Rinse the watch with fresh water after exposure to salt water or chlorine.
- Avoid exposing the watch to extreme temperature changes.
Battery Replacement
The watch uses 1 Lithium Metal battery (included). Battery replacement should ideally be performed by a qualified watch technician to ensure water resistance is maintained.
- Incorrect battery replacement can compromise the watch's water resistance.
- Dispose of used batteries responsibly according to local regulations.
Cleaning
To clean your watch:
- Wipe the watch case and strap with a soft, damp cloth.
- Avoid using harsh chemicals or abrasive cleaners.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Display is blank or dim. | Low or dead battery. | Replace the battery. |
| Time is incorrect. | Time not set correctly. | Refer to "Setting Time and Date" section. |
| Buttons do not respond. | Watch may be in a locked mode or battery is low. | Check for any lock indicators. If none, try replacing the battery. |
| Alarm does not sound. | Alarm is turned off or set incorrectly. | Ensure the alarm is set and activated (alarm icon visible). |
| Mode is missing from cycle. | Mode has been hidden. | Refer to "Hiding Modes" section to make it visible. |
Specifications
- Brand: Timex
- Model Number: T5K412SU
- Product Dimensions: 1.57 x 3.94 x 2.36 inches
- Item Weight: 1.6 ounces
- Material: Resin
- Water Resistance: 100m (330ft)
- Battery: 1 Lithium Metal battery (included)
- Display Type: Digital
- Case Size: 43mm
Warranty and Support
For warranty information or additional support, please visit the official Timex website or contact their customer service. Keep your proof of purchase for warranty claims.
Official Timex Store: Timex Store on Amazon
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