
The Gruen 210SS is a mechanical watch movement characterized by its unique structure where the train and hand gear are driven separately by the barrel. This movement enables the watch to perform various functions including manual winding, sweep seconds, day, and date display. The date can be set by adjusting the time to the period between 21:40 and 24:00. The Gruen 210SS movement was produced around the 1970s.
The Gruen 210SS features the following functions:
| Ronda Reference # | Shock System | Buy |
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| Dimensions | GR Reference # | End Type | Buy |
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| 1.20 x 0.130 x 300 x 9.5 mm | GR2988 | Manual | Buy mainspring |
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
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| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
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