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ETA 820
Ligne: 8.75'''
Jewels: 15/17
Lift Angle: 52°
Power Reserve: 43 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1955
Diameter: 19.7 mm
Height: 3.3 mm
Hands: 1.20 x 0.60 / 0.18 mm
The ETA 820 watch movement is a manual wind movement with a sub-second function. It belongs to a series of movements that includes the ETA 820, 631, 632, and 633. The differences between these movements are not known. The ETA 820 movement was commonly used during the approximate period of 1955.
The ETA 820 features the following functions:
- Manual Winding
- Sub Second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|---|---|
| 4413 | Ordinary/None | Buy staff |
| 5097 | Ordinary/None | Buy staff |
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.50 x 0.080 x 260 x 7.5 mm | GR40771 | Manual | Buy mainspring |
Incabloc Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) | |
|---|---|---|---|
| See More |
KIF Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
|---|
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Parts Listing
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