Product Overview
The TMI VH83 is a 10½ ligne quartz watch movement designed for watches requiring a sweep second hand and multi-eye functions. It features a 24-hour indicator, date display, and a retrograde day hand. This movement is known for its smooth sweep second hand, mimicking the motion of a mechanical watch.
Setup and Installation
The TMI VH83 movement is intended for professional installation into compatible watch cases. Proper tools and expertise are required to avoid damage to the delicate components.
Key Installation Steps:
- Prepare the Movement: Ensure the movement is clean and free of dust.
- Install Battery: Insert the recommended SR920SW battery into its designated slot. Refer to Figure 1 for battery placement.
- Install Crown Stem: Carefully insert the crown stem into the movement. The video below demonstrates the movement's interaction with the crown stem.
- Install Hands: Attach the hour, minute, sweep second, and sub-dial hands. Ensure proper alignment and clearance to prevent interference.
- Mount Movement: Secure the movement within the watch case using appropriate movement holders or screws.
Operating Instructions
The TMI VH83 movement features standard watch operation via the crown, along with multi-eye functions for day, date, and a 24-hour indicator.
Setting Time and Date:
- Time Setting: Pull the crown out to the furthest position (Position 2). Rotate the crown to set the hour and minute hands. Push the crown back to Position 0 when done.
- Date Setting: Pull the crown out to the middle position (Position 1). Rotate the crown to adjust the date. Push the crown back to Position 0 when done.
- Day Setting: The retrograde day hand is typically adjusted in conjunction with the date or by advancing the time past 24 hours. Refer to the specific watch case's crown functions for precise adjustment.
- 24-Hour Indicator: The 24-hour sub-dial hand is synchronized with the main hour hand and cannot be set independently.
Maintenance
Regular maintenance ensures the longevity and accuracy of your TMI VH83 movement.
Battery Replacement:
The TMI VH83 movement uses an SR920SW battery, which has an approximate life of 2 years. When the watch stops or the sweep second hand begins to skip seconds (indicating low power), the battery should be replaced by a qualified watch technician. Always use the specified battery type.
General Care:
- Avoid exposing the watch to extreme temperatures outside the operating range of -5 °C to +50 °C.
- Keep the watch away from strong magnetic fields, as these can affect the accuracy of quartz movements. The movement is designed to be antimagnetic up to ≥1600 A/m.
- Ensure the crown is pushed in completely when not setting the time or date to maintain water resistance (if applicable to the watch case).
Troubleshooting
If you encounter issues with your TMI VH83 movement, consider the following common troubleshooting steps:
Watch Not Running:
- Check Battery: The most common reason for a quartz watch to stop is a depleted battery. Replace the SR920SW battery.
- Crown Position: Ensure the crown is fully pushed in (Position 0). If it's pulled out, the watch will not run.
Incorrect Time/Date:
- Reset Time/Date: Follow the operating instructions to correctly set the time and date.
- Magnetic Interference: If the watch is consistently inaccurate, it may have been exposed to a strong magnetic field. Demagnetization by a professional may be required.
For persistent issues, professional inspection and repair are recommended.
Specifications
Detailed specifications for the TMI VH83A 10½ Ligne Quartz Movement:
| Feature | Detail |
|---|---|
| Movement Type | Quartz |
| Caliber | VH83A (10½ Ligne) |
| Jewels | 2 jewels |
| Accuracy | Less than ±15 seconds / month (Normal temperature range) |
| Battery | SR920SW (Approx. 2 years life) |
| Functions | Three Hands (1/4 Center Second Hand), 3 eyes (Small 24 Hour Indicator, Date & Retrograde Day Hands), Date & Retrograde Day display with quick date correction, 24 hour indicator (Synchronized regular hour hand) |
| Operating Temperature | From -5 °C to +50 °C |
| Antimagnetic | ≥1600 A/m |
| Height | 3.45 mm |
| Hand Unbalance (Max) | Hour: 0.50 μN·m, Minute: 0.80 μN·m, Second: 0.30 μN·m, Small hands: 0.10 μN·m |
User Tips
- When replacing hands, ensure they are pressed firmly but gently to avoid bending the shafts or damaging the movement.
- Always use non-magnetic tools when working with watch movements to prevent magnetization.
- Store unused movements in a dry, dust-free environment, ideally in their original protective packaging.
Warranty and Support
For warranty information and technical support regarding your TMI VH83 movement, please contact the seller or the watch manufacturer directly. Keep your purchase records for reference.
