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The Longines 12L watch movement, developed in 1964 and continuing until the present, is a manually-wound mechanical movement that features a sweep second hand and a date function.
The Longines 12L features the following functions:
| Ronda Reference # | Shock System | Buy |
|---|---|---|
| 5055 | Ordinary/None | Buy staff |
| 5055 | Incabloc | Buy staff |
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.10 x 0.140 x 320 x 11.5 mm | Manual | Buy mainspring |
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
|---|
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
|---|
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