
The Osco 400 watch movement is a manual wind mechanism that features various bridge layouts, which may vary depending on the production year. Specific differences between the Osco 400, 1273, and 1275 movements are currently unknown.
The Osco 400 features the following functions:
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.50 x 0.080 x 245 x 7.5 mm | 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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