1. Introduction
Welcome to your OUPINKE G3186WG-JJ Automatic Mechanical Watch. This manual provides essential information for setting up, operating, and maintaining your timepiece. Your watch features a durable Japanese automatic mechanical movement, sapphire crystal, and a tungsten steel strap, designed for precision and longevity.
Please read this manual carefully to ensure proper use and care of your OUPINKE watch.
2. Product Features
- Automatic Movement: Imported durable Japanese automatic mechanical movement, supporting self-winding and manual winding, designed for stable operation.
- Skeleton Design: Features a tourbillon, moon phase window, and date display, with four diamonds on the dial for an exquisite appearance.
- Luxury Construction: Scratch-resistant, triple-coated anti-reflective sapphire crystal lens, luminous 3-hand analog display, crystal markers, 42 mm case diameter.
- Durable Band: Genuine rhombus watch band with a design patent in tungsten steel, featuring high-gloss cutting technology and hidden safety butterfly push buttons to prevent perspiration.
- Water Resistance: Stainless steel bezel with high-precision seamless technology, waterproof to 50 meters (164 feet).

Composite image illustrating key features: 50 meters water resistance, synthetic sapphire mirror, tungsten steel stainless steel strap, and HD luminous display.
3. Setup
3.1 Initial Winding
Before first use or after the watch has stopped, manually wind the watch by rotating the crown clockwise approximately 30-40 times while it is in its normal (pushed-in) position. This provides the initial power reserve. The watch will then self-wind with your arm's motion.
3.2 Setting Time
Pull the crown out to the outermost position. Rotate the crown to set the hour and minute hands. Push the crown back in to start the watch.
3.3 Setting Date and Day
Pull the crown out to the middle position. Rotate the crown clockwise or counter-clockwise to adjust the date and day indicators. Avoid adjusting the date between 9 PM and 3 AM, as this can damage the movement.
3.4 Adjusting Year/Month
Use the dedicated adjustment buttons on the left side of the watch case to set the year and month. Refer to the diagram below for button locations.

Diagram illustrating the adjustment buttons and various display windows (Year/Month, Week, Date) on the OUPINKE G3186WG-JJ watch.
3.5 Band Adjustment
The tungsten steel strap can be adjusted by removing links. It is recommended to have this done by a professional watchmaker to prevent damage to the band or watch.
4. Operating Instructions
4.1 Wearing the Watch
Ensure the watch is securely fastened to your wrist. The automatic movement relies on your daily activity to maintain its power reserve.

Image of the OUPINKE G3186WG-JJ watch on a wrist, showcasing the dial and band.
4.2 Understanding the Dial
- The central hands indicate hours, minutes, and seconds.
- The visible tourbillon at the 6 o'clock position is a rotating escapement mechanism, enhancing accuracy and showcasing mechanical artistry.
- Sub-dials or windows display the day of the week, date, and moon phase (if applicable to your specific model variant).
- The luminous hands and markers glow in low-light conditions after exposure to light.

Detailed view of the OUPINKE G3186WG-JJ watch dial, showing the tourbillon, date, and day indicators.
4.3 Water Resistance Guidelines
Your OUPINKE watch is water-resistant to 50 meters (5 ATM). This means it is suitable for daily use, such as hand washing, rain, or accidental splashes. It is not suitable for swimming, diving, or hot water activities like showering or sauna, as steam and temperature changes can compromise the seals. Always ensure the crown is fully pushed in before any contact with water.
Official video demonstrating the OUPINKE G3186WG-JJ automatic watch, showcasing its design and features, including water resistance.
5. Maintenance
5.1 Cleaning
Wipe the watch regularly with a soft, dry cloth to remove dust and fingerprints. For the metal strap, a slightly damp cloth can be used, followed by immediate drying.
5.2 Avoid Chemicals
Do not expose the watch to harsh chemicals, solvents, or detergents, as these can damage the case, strap, or seals.
5.3 Temperature Extremes
Avoid exposing the watch to extreme temperatures (hot or cold) or sudden temperature changes, which can affect the movement's accuracy and water resistance.
5.4 Magnetic Fields
Keep the watch away from strong magnetic fields (e.g., speakers, refrigerators, mobile phones) as magnetism can affect the watch's accuracy.
5.5 Servicing
For optimal performance, it is recommended to have your mechanical watch serviced by a qualified watchmaker every 3-5 years.
6. Troubleshooting
6.1 Watch Not Running or Stopping Frequently
- Ensure the watch is sufficiently wound. If you don't wear it daily, manually wind it as described in Section 3.1.
- If the watch is new, it may require more initial winding to build up its power reserve.
- If the issue persists after proper winding, it may indicate a need for professional servicing.
6.2 Inaccurate Timekeeping
- Check if the watch has been exposed to strong magnetic fields. Demagnetization by a professional may be required.
- Ensure it is fully wound. A low power reserve can affect accuracy.
- If the watch consistently runs fast or slow, it may require adjustment by a professional watchmaker.
6.3 Water Inside the Watch
If condensation or water droplets appear inside the watch, immediately take it to a professional watchmaker. Do not attempt to open it yourself. This indicates a breach in water resistance that needs immediate attention.
6.4 Band Discomfort or Damage
If the band causes irritation or shows signs of wear, consult a watch specialist for adjustment or replacement.
7. Specifications
| Feature | Detail |
|---|---|
| Movement | Japanese Automatic Mechanical |
| Case Diameter | 42 mm |
| Crystal | Sapphire |
| Water Resistance | 50 meters (5 ATM) |
| Band Material | Tungsten Steel |
| Model Number | G3186WG-JJ |
| Department | Men's |
| Date First Available | May 19, 2021 |
8. Warranty and Support
8.1 Warranty
OUPINKE provides a 36-month assurance for all automatic watches. This warranty covers manufacturing defects under normal use. Please retain your proof of purchase for warranty claims.
8.2 Returns
A 30-day free return policy is available for this wristwatch. Please refer to your purchase platform's return guidelines for specific details and procedures.
8.3 Contact Support
For any questions, warranty claims, or service inquiries regarding your OUPINKE watch, please contact the manufacturer or seller through the platform where you made your purchase. Provide your model number (G3186WG-JJ) and purchase details for faster assistance.





