Armitron 40/8438DGNTB

Armitron Sport Men's Digital Chronograph Watch

Model: 40/8438DGNTB

Introduction

This instruction manual provides detailed guidance for the setup, operation, and maintenance of your Armitron Sport Men's Digital Chronograph Watch, Model 40/8438DGNTB. Please read this manual thoroughly to ensure proper use and to maximize the lifespan of your watch.

Front view of the Armitron Sport Digital Chronograph Watch

Image: Front view of the Armitron Sport Men's Digital Chronograph Watch, featuring a black case, military green top ring, and an LCD display showing time, day, and date.

Product Features

Black resin case with military green top ring.
LCD display showing time, seconds, day and date.
Functions include: chronograph, lap time, alarm, dual time, military time and backlight.
Military green resin strap with buckle closure.
Water resistant to 330 feet (100M).

Side view of the Armitron Sport Digital Chronograph Watch

Image: Side view of the Armitron Sport Watch, highlighting the black resin case and the buttons for adjustment and backlight.

Setup and Initial Configuration

Setting Time and Date

In normal time mode, press the MODE button repeatedly until the time setting mode is displayed (usually indicated by flashing digits).
Press the SET button to cycle through the settings: seconds, hour, minute, year, month, day.
Use the ADJ button to increase the flashing value. Hold the button to rapidly advance the digits.
Once all settings are correct, press the MODE button to exit the setting mode and return to normal time display.

12/24 Hour Format

To switch between 12-hour and 24-hour (military) time format, press the ADJ button in normal time mode. The display will toggle between "AM/PM" indicator for 12-hour format and no indicator for 24-hour format.

Operating Instructions

Chronograph (Stopwatch) Function

From normal time mode, press the MODE button once to enter Chronograph mode. The display will show "0:00:00".
Press the ST/LAP/SFL button to start the chronograph.
Press the ST/LAP/SFL button again to pause the chronograph.
To record a lap time while the chronograph is running, press the RECALL button. The lap time will be displayed temporarily. Press RECALL again to return to the running chronograph.
To reset the chronograph to zero, ensure it is paused, then press the STOP/ADJ button.

Alarm Function

From normal time mode, press the MODE button twice to enter Alarm mode. The alarm time will be displayed.
Press the SET button to activate the alarm setting. The hour digits will flash.
Use the ADJ button to set the desired hour.
Press SET again to move to the minute digits, then use ADJ to set the minutes.
Press MODE to exit alarm setting.
To turn the alarm ON/OFF, in Alarm mode, press the ADJ button. An alarm icon will appear/disappear on the display.

Backlight Function

Press the EL button (Electro-Luminescent) to illuminate the display for easy viewing in low light conditions. The backlight will remain on for a few seconds.

Maintenance and Care

Cleaning: Wipe the watch case and strap with a soft, damp cloth. Avoid using harsh chemicals or abrasive materials.
Water Resistance: This watch is water resistant to 100 meters (330 feet). It is suitable for showering, swimming, and snorkeling, but not for diving. Do not operate buttons underwater.
Temperature: Avoid exposing the watch to extreme temperatures (hot or cold) for prolonged periods, as this can affect battery life and accuracy.
Battery Replacement: When the display becomes dim or functions become erratic, the battery may need replacement. It is recommended to have the battery replaced by a qualified watch technician to ensure water resistance is maintained. The watch uses 1 Product Specific battery.

Back view of the Armitron Sport Digital Chronograph Watch

Image: Back view of the Armitron Sport Watch, showing the stainless steel case back and the buckle closure of the military green resin strap.

Troubleshooting

Problem	Possible Cause	Solution
Display is dim or blank.	Low battery.	Replace the battery.
Buttons are unresponsive.	Watch may be in a locked mode or battery is very low.	Try pressing all buttons to see if any respond. If not, replace battery.
Time is inaccurate.	Battery is low or watch has been exposed to strong magnetic fields.	Replace battery. If problem persists, consult a watch technician.
Condensation under crystal.	Exposure to extreme temperature changes or water resistance seal compromised.	Avoid extreme temperature changes. If condensation persists, have the watch inspected by a technician immediately to prevent damage.

Specifications

Model Number: 40/8438DGNTB
Movement: Quartz
Case Material: Resin
Strap Material: Resin
Water Resistance: 100 meters (330 feet)
Functions: Chronograph, Lap Time, Alarm, Dual Time, Military Time, Backlight
Battery: 1 Product Specific battery (included)
Dimensions: 4.21 x 3.98 x 2.87 inches (Package Dimensions)
Weight: 7.05 ounces (Package Weight)

Warranty and Support

For warranty information and customer support, please refer to the official Armitron website or contact their customer service department. Keep your purchase receipt as proof of purchase for warranty claims.

Armitron Official Website: www.armitron.com

For further assistance, you may also contact the retailer where the watch was purchased.

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