The Seiko 4N01-5050 features the following functions:
| Ronda Reference # | Shock System | Buy |
|---|
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.40 x 0.060 x 180 x 5.5 mm | GR3560 | 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 |
|---|---|---|---|
| MAINSPRING 1.40-.06-180 5,5 | MS-515A | GR 3560 | Buy part |
| ROLLER | 82S/228R | Buy part | |
| STAFF | 721/1263F | Buy part | |
| STAFF, INCA | 0315180 | 100/2235 | Buy part |
| STEM | 0351183 | 401/836 | Buy part |
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