MIYOTA 9075
Automatic Watch Movement
Specifications
| Specification | Value |
|---|---|
| Size (<ligne>) | 11 1/2" |
| Height (<mm>) | 4.92 |
| Accuracy (<per Day>) | -10 to +30 sec |
| Posture Difference | (under) 30 sec |
| Running Time | (approximately) 42 hours |
| Vibration Frequency (<per Hour>) | (vibration) 28800 |
| Jewels | 24 pcs |
| Lift Angle | 51 degree |
| Original Package | 100 pcs |
Components
- Attached Stem: 065-A05 (includes 929-808 Screw for dial fix)
- Plastic holder: 500-0000M
- Spacer: 212-B12
- Note: Stem is exchangeable with casing clamp screws.
Movement diameter: approximately 26.00 mm.
Clearance
Clearance values may change depending on the glass, case structure, and the length of the hand.
- Hand clearance: 0.40 mm minimum
- Movement clearance: 0.40 mm minimum
Time Measurement & Winding
Mechanical
Accuracy
Measure accuracy within a lapse of 10-60 minutes from full winding with the movement in position ① (Dial side up).
Posture Difference
Measure accuracy in the following four postures:
- ① Dial side up
- ② 6 o'clock side up
- ③ 9 o'clock side up
- ④ 3 o'clock side up
To Make Full-Winded
| Movement Series | Action |
|---|---|
| 90 / 91 | Turn the crown 40 times |
| 82 / 8N | Turn the crown 40 times |
| 6T | Turn the crown 20 times |
Winding Direction
For movement series 90/91/6T, winding is achieved by turning the crown clockwise [clockwise winding]. For series 82/8N, winding is achieved by turning the crown counter-clockwise [counter-clockwise winding].
Operation
Setting the Time
Pull the crown out to the second click position to set the time.
Setting the Date & Adjusting Time Difference
Pull the crown out to the first click position to set the date and adjust the time difference.
