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The Felsa 4017 is a mechanical watch movement featuring a pin-lever escapement, a ratchet on the dial side, and a crown mechanism with a rocker bar. Its differences from the 48/10a are not known. This movement offers functions such as manual winding and a sweep second hand. It was used around the period of 1960.
The Felsa 4017 features the following functions:
| Ronda Reference # | Shock System | Buy |
|---|---|---|
| 1366 | Ordinary/None | Buy staff |
| 1367 | Ordinary/None | Buy staff |
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.60 x 0.100 x 315 x 9.5 mm | Manual | Buy mainspring | |
| 1.60 x 0.095 x 280 x 8.5 mm | GR4475 | 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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| Part Description | Reference # | Alternate | Buy |
|---|
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