1. Product Overview
The WeCool Fairwhale FW-5370-6 is an analog quartz chronograph watch designed for men. It features an imported quartz movement, moon phase display, date window, and stopwatch functionality. The watch is equipped with 3ATM water resistance, luminous hands and markers for low-light visibility, and a scratch-resistant mineral glass. It comes with a genuine leather strap and a stainless steel case.

Image 1.1: Front view of the WeCool Fairwhale FW-5370-6 watch, showcasing its black dial, chronograph subdials, moon phase indicator, and date window.
Key Features:
- Analog Quartz Movement: Provides accurate timekeeping with a long battery life.
- Chronograph Function: Integrated stopwatch for measuring elapsed time.
- Moon Phase Display: Indicates the current phase of the moon.
- Date Window: Displays the current date.
- 3ATM Water Resistance: Suitable for daily splashes, rain, and handwashing. Not intended for swimming or diving.
- Luminous Hands and Markers: Ensures readability in low-light conditions.
- Scratch-Resistant Mineral Glass: Protects the watch dial from scratches.
- Genuine Leather Strap: Comfortable and durable for daily wear.
2. Watch Components
Familiarize yourself with the main components of your watch:

Image 2.1: Diagram illustrating the watch crown and pushers, indicating their functions for time adjustment, date setting, and chronograph control.
- Crown: Used for setting time and date.
- Upper Pusher: Controls the chronograph start/stop function.
- Lower Pusher: Controls the chronograph reset function.
- Main Dial: Displays hours, minutes, and seconds.
- Chronograph Subdials: Measure elapsed time (e.g., minutes, seconds).
- Moon Phase Indicator: Shows the lunar cycle.
- Date Window: Displays the current date.
3. Setup and Operation
3.1 Setting the Time
- Pull the crown out to position 2 (farthest out).
- Rotate the crown to move the hands clockwise until the desired time is set. Ensure the AM/PM is correctly set if your watch has a 24-hour indicator or if setting the date.
- Push the crown back to position 0 (normal position).
3.2 Setting the Date
- Pull the crown out to position 1 (first click).
- Rotate the crown clockwise or counter-clockwise (depending on the movement) until the correct date appears in the date window.
- Push the crown back to position 0 (normal position).
Note: Avoid setting the date between 9 PM and 3 AM, as this can interfere with the date change mechanism. If you need to set the date during this period, first set the time outside this range, adjust the date, then reset the time.
3.3 Using the Chronograph (Stopwatch)
- Start: Press the upper pusher to start the chronograph. The chronograph second hand will begin to move.
- Stop: Press the upper pusher again to stop the chronograph. The elapsed time will be indicated by the chronograph hands.
- Reset: After stopping, press the lower pusher to reset the chronograph hands to their zero positions.
3.4 Moon Phase Display
The moon phase display automatically advances with the time. To set it initially, you may need to consult a moon phase calendar for your current location and manually adjust it by rotating the crown (if applicable, or it may be linked to the time setting mechanism). For this model, the moon phase is typically linked to the main time setting and advances automatically.

Image 3.1: Close-up of the watch's moon phase display, showing the day and night indicators.
4. Maintenance and Care
4.1 Water Resistance (3ATM)
Your WeCool Fairwhale watch is rated for 3ATM (30 meters) water resistance. This means it is suitable for:
- Daily use
- Splashes
- Rain
- Handwashing
Important: This watch is NOT suitable for showering, bathing, swimming, diving, or any water sports. Do not operate the crown or pushers when the watch is wet or submerged, as this can compromise the water resistance.

Image 4.1: Illustration of the watch's 30-meter water resistance and luminous feature.
4.2 Cleaning
To maintain the appearance of your watch:
- Wipe the watch case and crystal with a soft, dry cloth.
- For the leather strap, avoid prolonged exposure to water, direct sunlight, and harsh chemicals. Clean with a slightly damp cloth and allow to air dry.
4.3 Battery Replacement
This watch uses a quartz movement, powered by a battery. When the watch stops or the second hand begins to skip, it indicates a low battery. Battery replacement should be performed by a qualified watch technician to ensure proper sealing and maintain water resistance.
5. Troubleshooting
- Watch not running: Check if the crown is pushed in completely to position 0. If it is, the battery may need replacement.
- Date not changing: Ensure the time is set correctly, especially past midnight. Avoid setting the date between 9 PM and 3 AM.
- Chronograph hands not resetting to zero: This may require a chronograph reset procedure. Consult a watch technician if the issue persists after attempting to reset using the lower pusher.
- Condensation inside the watch: This indicates a loss of water resistance. Avoid further contact with water and seek professional service immediately.
6. Specifications

Image 6.1: Detailed table of watch parameters, including movement, materials, and dimensions.
| Parameter | Value |
|---|---|
| Model Number | FW-5370-6 |
| Product Dimensions | 2.2 x 0.43 x 0.25 cm |
| Item Weight | 50 g |
| Manufacturer | WeCool |
| Country of Origin | China |
| Case Diameter | 41 Millimetres |
| Band Colour | Black |
| Band Material Type | Leather |
| Watch Movement Type | Quartz |
| Water Resistance | 3 ATM (30 Meters) |
| Glass Material | Mineral reinforced coated glass |
| Case Material | Metal material |
7. Warranty and Support
7.1 Warranty Information
This WeCool Fairwhale watch comes with a limited warranty. Please refer to the warranty card included with your purchase for specific terms and conditions. An optional 1-year extended warranty plan may be available from Onsitego.
7.2 Customer Support
For any questions regarding the use, maintenance, or troubleshooting of your watch, please contact WeCool customer support. You can reach us through the Amazon platform where the product was purchased. Our professional after-sales team is available to assist you.
Seller: WeCool Technology





