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This is a TMI/Hattori PC39 quartz movement, sized at 10½‴ (approx. 23.8 mm) with a height of 4.15 mm. It features 3 hands (hours, minutes, seconds) along with Sun & Moon indicator and date display, suitable for watch designs that require a multi-functional dial layout. As a genuine Hattori movement, this product includes the winding stem and comes in SOFLY eco-friendly packaging, making it an ideal choice for movement replacement or repair.
| Feature | Description |
|---|---|
| Brand | TMI / Hattori / Seiko (Seiko Group) |
| Model | PC39 |
| Size (Ligne) | 10½‴ (approx. 23.8 mm) |
| Height | 4.15 mm |
| Functions | 3 hands (hours, minutes, seconds), Sun & Moon, date |
| Battery Life | Approx. 3 years |
| Battery Model | SR626SW |
| Included Accessory | Winding stem |
| Battery | NOT included – purchase separately |
| Packaging | SOFLY eco-friendly packaging |
| Origin | Made in Japan |
| Condition | Brand new |
| Authenticity | Genuine Hattori |
| Instruction | Details |
|---|---|
| Normal Operation | Pull crown to first position for date and Sun & Moon setting, second position for time setting |
| Sun & Moon Function | Typically located in a subdial at 6 o‘clock, adjusted via the crown – indicates day/night |
| Stop-Seconds Function | When the crown is pulled to time-setting position, the seconds hand stops for precise synchronization |
| Battery Replacement | Replace battery every 3 years using SR626SW |
| Step | Instruction |
|---|---|
| 1. Remove Old Movement | Open the case back and carefully remove the old movement |
| 2. Install Dial | Align dial with movement positioning posts, gently press into place |
| 3. Secure Dial | Use dial fixing screws if applicable |
| 4. Install Hands | Install hour, minute, seconds, and Sun & Moon hands in sequence – ensure they are parallel and do not interfere |
| 5. Install Winding Stem | Insert the included winding stem into the movement, press the setting lever and push into place |
| 6. Install Battery | Insert SR626SW battery – verify movement starts |
| 7. Test Functions | Rotate crown to test time, date, and Sun & Moon adjustment functions |
Important Note: When installing the Sun & Moon hand, ensure it is centered at the 12 or 6 o’clock position to avoid interference with the dial markers.
| Aspect | Guidance |
|---|---|
| Battery Replacement | Replace battery every 3 years using SR626SW. Check battery contacts for oxidation during replacement |
| Cleaning | Use dust blower to clean movement surface; avoid liquid cleaners |
| Accuracy Troubleshooting | If timekeeping is off, first check battery voltage; then check for hand friction against crystal or dial |
| Sun & Moon Sticking | If the Sun & Moon hand sticks, check for contact with the dial or crystal, or possible gear damage |
| Replacement Criteria | If movement runs inaccurately or stops with a good battery, replace the movement entirely |
| Storage | Store unused movements in a cool, dry place away from moisture |
Q1: What is the size of the PC39 movement?
A: The PC39 is a 10½‴ movement (approx. 23.8 mm) with a height of 4.15 mm.
Q2: What battery does the PC39 use?
A: The PC39 uses an SR626SW battery, with a battery life of approximately 3 years.
Q3: Does this movement have a stop-seconds (hacking) function?
A: Yes. When you pull the crown to the time-setting position, the seconds hand stops, allowing precise time synchronization.
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