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This is a MIYOTA (Citizen Group) 9T22 ultra-slim quartz movement, sized at 6 3/4×8‴ (approx. 15.30×18.20 mm) with a thickness of just 1.9 mm, designed as a minimalist 2-hand movement for ultra-thin watches. It offers an accuracy of ±20 seconds per month and a battery life of 3 years.
As a genuine MIYOTA movement, this product includes the original winding stem, comes in SOFLY eco-friendly packaging, is made in Japan, and is an ideal choice for movement replacement or repair.
| Feature | Description |
|---|---|
| Brand | MIYOTA / CITIZEN (Citizen Group) |
| Model | 9T22 |
| Size (Ligne) | 6 3/4 × 8‴ |
| Size (mm) | Approx. 15.30 × 18.20 mm |
| Thickness | 1.9 mm (movement body) / Overall height approx. 3.05-3.06 mm |
| Functions | 2 hands (hours, minutes) |
| Accuracy | ±20 seconds per month |
| Battery Life | Approx. 3 years |
| Battery Model | 321 / SR616SW |
| Hand Hole Sizes | Hour: Ø1.20mm, Minute: Ø0.70mm |
| Hand Torque | Minute: 0.40 μN·m |
| Winding Stem Spec | Tap 0.70mm / Tap 10 (Part No. 065-495) |
| Jewels | 0 |
| Hacking (Stop-Seconds) | Yes |
| Origin | Made in Japan |
| Included Accessory | Winding stem included |
| Battery | NOT included – purchase separately |
| Packaging | SOFLY eco-friendly packaging |
| Instruction | Details |
|---|---|
| Normal Operation | Pull crown to position 1 for time setting (2-hand movement – no date function) |
| Stop-Seconds Function | When the crown is pulled to time-setting position, the seconds hand (or wheel train) stops for precise time synchronization |
| Time Setting | When setting time, rotate hands clockwise to avoid gear damage |
| Battery Replacement | Replace battery every 2-3 years using 321 / SR616SW battery |
| 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 and minute 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 321 / SR616SW battery – verify movement starts |
| 7. Test Functions | Rotate crown to test time setting; ensure hands run smoothly |
Important Note: The 9T22 is a 2-hand movement with no seconds hand. Pay attention to hand hole sizes: Hour Ø1.20mm, Minute Ø0.70mm .
| Note | Details |
|---|---|
| Movement Confirmation | This is a 2-hand (hours, minutes) movement – no seconds hand, no date function. Verify suitability for your dial design before purchase |
| Size Fit | Movement size is 6 3/4×8‴ (approx. 15.30×18.20 mm) with 1.9mm thickness – designed for ultra-thin cases |
| Battery Note | Battery is not included – purchase high-quality 321 / SR616SW battery separately |
| Winding Stem | Winding stem is included – no separate purchase needed. Stem specification: Tap 0.70mm / Tap 10 |
| Hand Specifications | Use matching hands: Hour hole Ø1.20mm, Minute hole Ø0.70mm |
| Water Resistance | The movement itself is not water-resistant – ensure proper case sealing during installation |
| SOFLY Packaging | MIYOTA eco-friendly SOFLY packaging – reduced plastic use |
| Aspect | Guidance |
|---|---|
| Battery Replacement | Replace battery every 2-3 years using 321 / SR616SW. 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 |
| Stoppage Troubleshooting | Check battery voltage; if battery is normal, coil or circuit board may be faulty |
| 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 MIYOTA 9T22 movement?
A: The movement measures 6 3/4 × 8‴ in ligne size, which is approximately 15.30 mm × 18.20 mm. The movement body thickness is 1.9 mm, with an overall height of approximately 3.05-3.06 mm including hands .
Q2: What battery does the 9T22 use?
A: The 9T22 uses a 321 / SR616SW battery. Battery life is approximately 3 years .
Q3: Does this movement have a seconds hand?
A: No. The 9T22 is a 2-hand movement (hours and minutes only). There is no seconds hand function .
Q4: Does the 9T22 have a stop-seconds (hacking) function?
A: Yes. When you pull the crown to the time-setting position, the movement stops, allowing precise time synchronization .
Q5: What are the hand hole sizes for this movement?
A: The hour hand requires a Ø1.20mm hole, and the minute hand requires a Ø0.70mm hole .
Q6: Is the winding stem included?
A: Yes, the winding stem is included with the movement. The stem specification is Tap 0.70mm / Tap 10 (part number 065-495) .
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