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The ETA 813 is a manual wind watch movement featuring a sub-second function. It belongs to a series of movements within a catalog range that includes models with bridge and plate variations. The specific differences between the ETA 813 and other movements within the range, such as the 70-85, 87-89, and 100-109, are not currently known.
The ETA 813 features the following functions:
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.60 x 0.100 x 300 x 9.0 mm | GR4486 | Manual | Buy mainspring |
| 1.60 x 0.100 x 290 x 9.0 mm | Manual | Buy mainspring | |
| 1.40 x 0.110 x 260 x 8.0 mm | GR3696 | Manual | Buy mainspring |
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
|---|
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
|---|
| Part Description | Reference # | Alternate | Buy |
|---|
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