AQUA FAQ

1. What is the case size & material of the AQUA?

Size:
Case diameter: 47mm · 
Case thickness: 15mm · 
Net weight of watch: 123g ·
Strap width: 24mm ·
Display: FSTN screen

Material:
316L stainless steel watch case ·
Stainless steel back shell 
Silicone strap ·
Glass (tough, scratch-resistant, high light transmission)

It is designed for divers and water-sports enthusiasts who want a professional dive instrument on the wrist — born for diving.

2. What type of watch is the NORTH EDGE AQUA?

The AQUA is a professional digital dive watch built for both scuba diving and free diving. It pairs a 100M water resistance rating and a 50M maximum diving depth with dive instruments — NDL time, safety factor, NITROX, and depth/temperature monitoring — plus an altimeter, barometer, compass, and everyday tools.

3. Does the AQUA require battery replacement?

Yes.
The AQUA is powered by a replaceable CR2450 battery. We recommend having the battery replaced by a professional to maintain water resistance.

4. Is the AQUA waterproof?

Yes.
The AQUA has a water resistance rating of 100M (10BAR), making it suitable for:
Swimming · Snorkeling · Diving (to 50M maximum depth) · Water sports · Daily exposure to water
Always avoid hot water, steam, and chemical exposure.

5. Can I use the AQUA for diving?

Yes.
The AQUA is a professional dive watch supporting both scuba diving and free diving, with a maximum diving depth of 50M. Dive mode tracks depth (in meters/feet), NDL time, safety stop, ceiling, dive/surface speed, compass angle, temperature, and current time.

6. Can I wear the AQUA in hot showers or saunas?

No.
Hot water, steam, saunas, and hot springs can damage the seals over time and reduce water resistance performance. These environments should be avoided.

7. What functions does the AQUA have?

The AQUA is packed with professional tools:
Waterproof 100M · Scuba dive · NDL time · Safety factor · NITROX · Free dive · Compass · Altimeter · Barometer · Thermometer · Time · Date & time · Stopwatch · Countdown · Alarm · Backlight

8. How does scuba dive mode work?

Before a scuba dive, set the dive safety factor and the oxygen content (NITROX). During the dive, the watch displays NDL (no-decompression limit) time, safety stop, ceiling, current depth, dive/surface speed, compass angle, temperature, and current time.

9. What is free dive mode?

The AQUA includes a dedicated free dive mode, supporting freediving in addition to scuba diving.

10. Does the AQUA have a compass? How does it work?

Yes.
Compass mode displays your azimuth and points to the north. It supports compass calibration — calibrate the compass before scuba diving to ensure accurate navigation underwater.

11. Does the AQUA have an altimeter?

Yes.
The altimeter measures altitude over a range of -500m to 9000m, helping you track elevation during hiking and mountain activities.

12. Does the AQUA have a barometer?

Yes.
The barometer measures current air pressure over a range of 300–1100hPa and displays an air pressure chart, helping you stay aware of changing weather.

13. Does the AQUA have a thermometer?

Yes.
The thermometer measures temperature over a range of -20°C to 60°C and displays the current temperature during dives and outdoor use.

14. Does the AQUA have a stopwatch?

Yes.
The stopwatch lets you time workouts, intervals, and daily tasks precisely.

15. Does the AQUA have a countdown timer?

Yes.
The countdown timer is available for interval training or timed tasks.

16. Does the AQUA have an alarm?

Yes.
The alarm lets you set alerts for your daily schedule.

17. Does the AQUA glow in the dark?

Yes.
The AQUA features a luminous display that stays clearly visible even in extremely dark environments — essential for night dives and low-light conditions.

18. What dive algorithm does the AQUA use?

The AQUA uses the BUHLMANN ZH-L16C decompression algorithm, as marked on the case back.

19. What display does the AQUA use?

The AQUA uses an FSTN screen for clear readability, available in black and white display variants.

20. Is the AQUA suitable for everyday wear?

Yes.
Although built as a professional dive watch, the AQUA's 316L stainless steel case and silicone strap make it comfortable for:
Daily wear · Diving and swimming · Hiking and outdoor activities · Travel · Casual everyday use

21. Is the AQUA suitable for saltwater use?

Yes.
After exposure to seawater, rinse the watch with fresh water and dry it thoroughly to help maintain its appearance and performance.

22. How should I maintain the AQUA?

For optimal performance:
Rinse with fresh water after diving or seawater exposure and dry thoroughly · Keep the glass clean for clear readability · Avoid strong impacts · Avoid hot water, steam, saunas, and high-pressure water · Have the battery replaced promptly when needed

23. What is included in the package?

The package typically includes:
NORTH EDGE AQUA Watch ·
User Manual · 
Original Gift Box ·
Warranty Card (Scan the provided QR code to follow our social media, or visit our official website and click "After-Sales Service" to register your warranty information.)

24. How can I contact NORTH EDGE Customer Support?

Email: info@northedgewatches.com
You can also start a chat by clicking the "CHAT" icon on the (https://northedgewatches.com) website.