1. What is the case size & material of the MARS 3?
Size:
Case size: 45mm
Strap width: 22mm
Strap length: 260mm
Net weight of watch: 55g
Material: CARBON FIBER+ bezel
CARBON FIBER+ case
TPU strap
Stainless steel bottom cover
FSTN screen
It is designed for outdoor users who want a tough, super-light, super-firm watch on the wrist.
2. What type of watch is the NORTH EDGE MARS 3?
The MARS 3 is a dual-display outdoor sports watch with analog hands and a digital screen that stay in sync. Built with a carbon-fiber composite case, it weighs only 55g while remaining tough and durable — designed for outdoor adventures and everyday wear.
3. Does the MARS 3 require battery replacement?
Yes.
The MARS 3 is powered by a replaceable CR2016 coin-cell battery. We recommend having the battery replaced by a professional to maintain water resistance.
4. Is the MARS 3 waterproof?
Yes.
The MARS 3 has a water resistance rating of 50M (5BAR), making it suitable for:
Swimming
Rain
Hand washing
Water sports
Daily exposure to water
It does not support shower/bath use, hot springs, or diving. Always avoid hot water, high-pressure jets, and chemical exposure.
5. Can I swim with the MARS 3?
Yes.
The MARS 3 is rated to 50M and supports swimming and surface water activities. It is not designed for shower/bath use, hot springs, or diving.
6. Can I wear the MARS 3 in hot showers or saunas?
No.
Hot water, steam, saunas, and hot springs can damage the seals over time and reduce water resistance. These environments should be avoided.
7. What functions does the MARS 3 have?
The MARS 3 is packed with useful tools:
50M water resistance
Countdown timer
LED backlight
World time (24 time zones)
Stopwatch
Automatic backlight
5 alarms & hourly chimes
Automatic calendar
8. How does the dual display work?
The analog pointer is displayed synchronously with the time on the electronic screen — the hands and the digital display always show the same time. A week hand also shows the day of the week.
9. Does the MARS 3 have a stopwatch?
Yes.
The stopwatch measures to 1/100th of a second during the first hour, then in units of 1 second after the first hour, with a maximum measured value of 24 hours. Split-time and elapsed-time functions provide support for sports enthusiasts and runners.
10. Does the MARS 3 have world time?
Yes.
World time lets you easily check the time of 24 time zones worldwide.
11. Does the MARS 3 have a countdown timer?
Yes.
The countdown timer is available for interval training or timed tasks.
12. Does the MARS 3 have an alarm?
Yes.
The MARS 3 features five groups of alarm bell and an hourly timekeeping (chime) function, so you don't miss any important moments.
13. Does the MARS 3 have an automatic calendar?
Yes.
The MARS 3 features a full automatic calendar, keeping the date and day accurate automatically.
14. Does the MARS 3 glow in the dark?
Yes.
The MARS 3 combines a luminous pointer with an LED backlight. Just press the LIGHT button on the right to check the time at night — clear and easy to read in the dark.
15. What is the case made of? Why is it so light?
The MARS 3 uses a CARBON FIBRE composite material (Carbon Core Guard Construction) for the bezel and case. It is:
6 times lighter than steel and 3 times lighter than titanium
Strong and sturdy, with high rigidity
Metal-free, hypoallergenic, and antimagnetic
Strong chemical resistance
Ultra-low thermal expansion
Waterproof and sweatproof
Combined with a 55g net weight, it stays comfortable on long outdoor adventures.
16. What material is the strap?
The MARS 3 comes with a TPU strap — durable and comfortable for daily wear and outdoor use.
17. What type of screen does the MARS 3 use?
The MARS 3 uses an FSTN screen, offering clear, high-contrast readability.
18. How do I use the buttons?
The MARS 3 has four buttons: ADJUST, MODE, LIGHT, and START. ADJUST is for setting, MODE for mode switching, LIGHT for the backlight, and START for starting functions such as the stopwatch.
19. Is the MARS 3 suitable for everyday wear?
Yes.
Although built for outdoor sports, the MARS 3's tough carbon-fiber build and featherweight 55g feel make it comfortable for:
Daily wear
Outdoor activities
Travel
Casual everyday use
20. Is the MARS 3 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.
21. How should I maintain the MARS 3?
For optimal performance:
Rinse with fresh water after swimming or seawater exposure and dry thoroughly
Keep the screen clean for clear readability
Avoid strong impacts
Avoid hot water, steam, saunas, and high-pressure water
Have the battery replaced promptly when needed
22. What is included in the package?
The package typically includes:
NORTH EDGE MARS 3 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.)
23. 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.
