Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of your LN LENQIN R040 Digital Military Watch. Please read this guide thoroughly to ensure proper use and to maximize the functionality of your timepiece.
Product Features
- Dual Time Display: Analog and digital time display for convenience.
- Multi-Functionality: Includes calendar, stopwatch, chronograph, alarm, hourly time signal, and date/week display.
- LED Backlight: For clear visibility in low-light conditions.
- Durable Construction: Shockproof design with a high-quality silicone strap for comfort and wear resistance.
- Water Resistance: 3ATM rated for daily use (hand washing, sweat, rain).
- Time Format: Supports 12/24 hour time format.
Setup and Time Adjustment
Setting Analog Time
- Locate the crown on the right side of the watch case.
- Gently pull the crown outwards until it clicks. This will stop the analog hands.
- Rotate the crown to adjust the analog hour and minute hands to the desired time.
- Once set, push the crown back into its original position to start the analog movement.
Setting Digital Time and Date
The digital display can be adjusted using the buttons on the watch case. Refer to the 'Operating Modes' section for button functions.
- Press the MODE button (bottom-left) repeatedly until the digital time display flashes, indicating it's in setting mode.
- Use the RESET button (bottom-right) to select the item to be adjusted (e.g., hours, minutes, month, date, day of week).
- Use the START/PAUSE button (top-right) to increase the selected value.
- Press the MODE button again to exit the setting mode.
Operating Modes
Stopwatch Function
- Press the MODE button (bottom-left) to cycle through modes until 'ST' (Stopwatch) appears on the digital display.
- Press the START/PAUSE button (top-right) to start the stopwatch.
- Press START/PAUSE again to pause the stopwatch.
- To reset, press the RESET button (bottom-right) while the stopwatch is paused.
Alarm Function
- Press the MODE button (bottom-left) to cycle through modes until 'AL' (Alarm) appears.
- Press the RESET button (bottom-right) to select hours or minutes for adjustment.
- Use the START/PAUSE button (top-right) to set the desired alarm time.
- Press the MODE button to confirm and exit.
- To activate/deactivate the alarm, press the START/PAUSE button while in alarm mode. An alarm icon will appear/disappear.
LED Backlight
Press the LIGHT ON/OFF button (top-left) to illuminate the digital display for a few seconds. This feature is useful in dark environments.
Water Resistance Guidelines
Your LN LENQIN R040 watch is rated 3ATM (30 meters) water resistant. This means it is suitable for:
- Hand washing
- Sweat exposure
- Rain exposure
Important Notes:
- DO NOT press any buttons while the watch is in water.
- DO NOT expose the watch to hot water, such as in baths or saunas.
- Not suitable for swimming or diving.
Product Specifications
| Specification | Detail |
|---|---|
| Model Number | R040 |
| Case Diameter | 52mm (2.04 inches) |
| Case Thickness | 18mm (0.7 inches) |
| Strap Width | 22mm (0.86 inches) |
| Strap Length | 280mm (11 inches) |
| Wearing Range | 190-245mm (7.48-9.64 inches) |
| Case Material | Silicone |
| Band Material | Silicone |
| Dial Window Material | High Transparency Mineral |
| Waterproof Level | 3 ATM / 30 Meters |
| Clasp Type | Buckle |
Visual Guide




Official Product Video
This video provides a brief overview of the LN LENQIN R040 Digital Watch, showcasing its design and basic functions.
Warranty and Customer Support
LN LENQIN watches are backed by dedicated customer service. If you have any questions or require assistance with your R040 Digital Military Watch, please feel free to contact us. Our customer service team is available 24 hours a day to provide support.