Specifications
| Size (<ligne>) | 11 1/2" |
| Height (<mm>) | 3.90 |
| Accuracy (<per Day>) | -10 ~ +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 |
Clearance
Clearance changes subject to the glass, case structure, and the length of the hand.
| Component | Clearance |
| Case | 0.30 ~ 0.40mm |
| Hand | 0.35 ~ 0.45mm |
| Movement | 0.35 ~ 0.45mm |
Diagram illustrating clearance: A schematic shows the relative positions of the case, hand, and movement, with specified clearance values for each.
Component Information
Parts related to stem and dial fixing:
- Attached Stem: 065-A05 (929-808 Screw for dial fix)
- Plastic holder: 500-002
- Spacer: 212-A47
Note: Exchangeable with casing clamps and screws. ⚙️
Diagram shows a watch movement with callouts for the attached stem, dial fix screw, plastic holder, and spacer. Also indicates exchangeability with casing clamps and screws.
Diameter: Φ26.00
Setting the Time
To set the time, pull out the crown and rotate it. The exact procedure may vary slightly based on the watch case design.
A small diagram shows a watch crown in its pulled-out position, indicating it is used for setting the time. ▶️
INFORMATION
Time measurement & Winding
Mechanical
Accuracy
Measure accuracy within a lapse of 10~60 minutes from full winding with posture 1.
Posture difference
Measure accuracy in the following 4 postures:
- Posture 1: Dial side up ⬆️
- Posture 2: 6 o'clock side up
- Posture 3: 9 o'clock side up
- Posture 4: 3 o'clock side up
Diagrams illustrate four different orientations for measuring watch accuracy: 1 (dial side up), 2 (watch face down with the 6 o'clock position oriented upwards), 3 (watch face down with the 9 o'clock position oriented upwards), 4 (watch face down with the 3 o'clock position oriented upwards).
To make full-winded
| Model | Crown Turns |
|---|---|
| 90 / 91 | Turn the crown 40 times |
| 82 / 8N | Turn the crown 40 times |
| 6T | Turn the crown 20 times |
Winding direction
The winding direction is clockwise for all listed models.
Diagrams show a watch crown with a circular arrow indicating clockwise rotation for winding. Separate diagrams are shown for '90/91/6T' and '82/8N' models, both indicating clockwise winding. ?
