1. Introduction
The NORTH EDGE APACHE is a robust digital sports watch designed for outdoor enthusiasts. It integrates multiple functions including an altimeter, barometer, compass, thermometer, pedometer, and various timekeeping features, making it a reliable companion for your adventures.



2. Key Features
The NORTH EDGE APACHE watch is equipped with the following functions:
- Altimeter (with altitude trend chart and climb rate)
- Barometer (with air pressure trend chart)
- Compass
- Thermometer
- Weather Forecast
- World Time
- Pedometer (step counter, calorie, distance record)
- Time functions: hour, minute, second, year (2000-2099), month, date, weekday
- Alarm clock (2 sets)
- Countdown timer (99:59:59~0)
- Stopwatch (0~59:59)
- Button tone on/off
- Battery life reminder
- EL Backlight

3. Specifications
| Attribute | Value |
|---|---|
| Brand Name | NORTH EDGE |
| Model Number | APACHE |
| Display Type | Digital |
| Movement | Digital |
| Case Material | Alloy |
| Case Shape | Round |
| Case Thickness | 14mm |
| Dial Diameter | 50mm |
| Dial Window Material Type | Hardlex |
| Band Material Type | Silicone / Nylon |
| Band Width | 24mm |
| Band Length | 25cm |
| Clasp Type | Buckle |
| Water Resistance Depth | 5Bar (50M) |
| Battery Included | Yes (CR2032) |
| Net Weight (N.W.) | 112g |
| Gross Weight (G.W.) | ≤ 200g |
| Display | FSTN |
| Certification | CE |

4. Initial Setup
Upon first use or after a battery change, you may need to set the time, date, and calibrate certain sensors.
4.1 Time and Date Setting
Refer to the watch's buttons (typically labeled A, B, C, D) for navigation and setting. Generally, a long press on a mode button (e.g., 'MODE' or 'SET') will enter setting mode, allowing you to adjust hours, minutes, year, month, and day using other buttons.
4.2 Compass Calibration
For accurate compass readings, calibration is essential. This usually involves rotating the watch horizontally and vertically in a figure-eight motion. Consult the full manual for precise steps. Incorrect calibration will lead to inaccurate direction readings.
4.3 Altimeter and Barometer Calibration
The altimeter and barometer rely on air pressure. For accurate readings, calibrate them against a known altitude or sea level pressure. Environmental factors like temperature and weather changes can affect these readings, so periodic recalibration is recommended, especially before critical use.
5. Operating Instructions
The APACHE watch offers various modes accessible via its buttons. Familiarize yourself with the button layout and their functions.
5.1 Altimeter Mode
This mode displays your current altitude, temperature, and an altitude trend chart. Pressing a specific button (often 'A') can switch between temperature and relative height settings.

5.2 Barometer Mode
View current air pressure, temperature, and a pressure trend chart. Similar to the altimeter, a button press (e.g., 'A') can toggle between sea level pressure and temperature display.

5.3 Compass Mode
After calibration, the compass displays direction (e.g., N, NE, E) and azimuth in degrees. Ensure you are away from strong magnetic fields for accurate readings.


5.4 Pedometer and Activity Tracking
The watch can track your steps, calculate calories burned, and estimate distance covered. Activate this mode to monitor your daily activity.
5.5 Stopwatch and Countdown Timer
Use the stopwatch for timing events with precision. The countdown timer can be set for specific durations, useful for various activities.
5.6 Alarm Clock and World Time
Set up to two alarms for reminders. The world time function allows you to view the current time in different time zones.
5.7 EL Backlight
Press the backlight button to illuminate the display in low-light conditions.
6. Maintenance
6.1 Battery Life
A new battery (CR2032) typically lasts about 8-10 months under normal usage. The watch includes a battery life reminder function.
6.2 Water Resistance
The watch is water-resistant up to 50 meters (5ATM). This means it can withstand splashes, rain, and brief immersion in water. However, it is NOT suitable for hot baths, hot springs, or showering with hot water. Hot water can cause slight deformation of the watch's seals, compromising its waterproof performance.

7. Troubleshooting
7.1 Fog Inside the Watch
If you observe fog or condensation inside the watch, it is likely due to exposure to hot water (e.g., hot baths or showers). Hot water can cause the watch's components to expand and contract, affecting the seals. If this occurs, it is recommended to have the back cover opened by a professional to dry out any internal moisture to prevent damage.
7.2 Inaccurate Compass Readings
The compass requires calibration before use and periodically thereafter. If readings are inaccurate, recalibrate the compass according to the instructions in the full manual. Ensure you are not near strong magnetic fields (e.g., large metal objects, electronics) during calibration or use, as these can interfere with accuracy.
7.3 Inaccurate Altimeter and Barometer Data
Altimeter and barometer data are influenced by atmospheric pressure and temperature. For optimal accuracy, calibrate these sensors against a known altitude or sea level pressure. Be aware that changes in weather conditions will naturally cause fluctuations in these readings. Regular calibration is key for reliable data.
8. User Tips
- Always calibrate the compass before embarking on a trip or when you notice discrepancies in readings.
- For the most accurate altimeter and barometer data, calibrate them in an environment with known altitude or sea level pressure.
- Avoid exposing the watch to extreme temperature changes, especially hot water, to maintain its waterproof integrity.
9. Warranty and Support
For warranty information, service, or technical support, please refer to the official NORTH EDGE website or contact your retailer. Keep your proof of purchase for any warranty claims.





