1. Introduction
This manual provides comprehensive instructions for the setup, operation, and maintenance of your FORSINING Winner Mechanical Sport Design Watch. Please read this manual carefully to ensure proper use and longevity of your timepiece.
2. Product Overview
The FORSINING Winner Mechanical Sport Design Watch is an automatic self-winding wristwatch featuring a distinctive skeleton dial and a durable stainless steel construction. Its design combines functionality with a modern aesthetic.

Image 1: The FORSINING Winner Mechanical Sport Design Watch in blue, showcasing its intricate skeleton dial and stainless steel band.
Key Features:
- Mechanical Movement: Automatic self-wind mechanism, powered by wrist movement and manual winding.
- Splashproof Design: Suitable for daily activities such as hand washing and light rain (30 meters / 100 feet water resistance). Not suitable for swimming or diving.
- Durable Construction: High-quality stainless steel case and band.
- Skeleton Dial: Unique hollow design showcasing the internal mechanical movement.
3. Setup
3.1 Initial Preparation
- Remove Protective Films: Before wearing, carefully peel off all protective films from the watch face, case back, and band.
- Keep Away from Magnets: To prevent malfunction, keep the watch away from strong magnetic fields.
3.2 Winding the Watch
Your mechanical watch requires initial winding to start its movement. If the watch has stopped or has not been worn for an extended period, follow these steps:
- Locate the crown on the right side of the watch case.
- Ensure the crown is in its normal, pushed-in position.
- Gently rotate the crown clockwise approximately 20-30 times until you feel slight resistance. This manually winds the mainspring.
- The watch should now begin to operate.
3.3 Setting the Time
- Pull the crown out to its outermost position.
- Rotate the crown to move the hands and set the desired time.
- Once the time is set, push the crown back into its normal operating position.
3.4 Adjusting the Band
The stainless steel band can be adjusted to fit your wrist size. A band adjustment tool is typically included with the watch. Refer to the instructions provided with the tool for proper link removal or addition. If you are unsure, it is recommended to seek professional assistance for band adjustment.
4. Operating Instructions
4.1 Automatic Self-Winding
Your watch features an automatic mechanical movement. This means it is primarily powered by the natural motion of your wrist while wearing it. To maximize the power reserve and ensure continuous operation, it is recommended to wear the watch for at least 10 hours per day.
4.2 Water Resistance
The watch has a water resistance rating of 30 meters (100 feet). This makes it suitable for:
- Daily use
- Hand washing
- Exposure to light rain or splashes
Important: This watch is not designed for swimming, showering, diving, or any activities involving submersion in water. Exposure to hot water or steam should also be avoided as it can compromise the seals.
5. Maintenance
5.1 Cleaning
To maintain the appearance of your watch:
- Wipe the case and band regularly with a soft, dry cloth.
- For stubborn dirt, a slightly damp cloth can be used, followed by immediate drying.
- Avoid using harsh chemicals, solvents, or abrasive cleaners.
5.2 Storage
When not wearing your watch, store it in a cool, dry place, away from direct sunlight and extreme temperatures. Ensure it is kept away from strong magnetic fields to prevent affecting its accuracy.
5.3 Regular Winding (If Not Worn Daily)
If the watch is not worn daily, it may stop. To keep it running, manually wind it every 24-36 hours as described in Section 3.2.
6. Troubleshooting
6.1 Watch Not Running
- Check Winding: Ensure the watch is sufficiently wound, either manually (Section 3.2) or by wearing it for at least 10 hours.
- Magnetic Interference: Confirm the watch has not been exposed to strong magnetic fields. If it has, its accuracy may be affected, and professional demagnetization might be required.
6.2 Time Inaccuracy
- Insufficient Power Reserve: Ensure the watch is fully wound and worn regularly. Mechanical watches can lose accuracy if not adequately powered.
- Magnetic Exposure: As mentioned, magnetic fields can cause significant timekeeping errors.
- Impact: A severe impact can affect the delicate internal mechanisms. If accuracy issues persist after checking winding and magnetic exposure, professional inspection is recommended.
7. Specifications
| Model Number | GMT886-1 |
| Movement | Mechanical Hand Wind / Automatic Self-Wind |
| Case Material | Stainless Steel |
| Band Material Type | Stainless Steel |
| Dial Window Material | Hardlex |
| Clasp Type | Bracelet Clasp |
| Case Diameter | 4.4 cm (1.73") |
| Case Thickness | 1.6 cm (16mm) |
| Band Width | 2.0 cm (0.8") |
| Band Length | 18.5 cm |
| Water Resistance Depth | 30 meters (100 feet) - Splashproof only |
8. Warranty and Support
For warranty information and customer support, please refer to the documentation provided at the time of purchase or contact the seller directly. Specific warranty terms and conditions may vary.