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Return To ShopThe Seiko 7N00-7B40 is a mechanical watch movement featuring sweep seconds and automatic functionality.
The Seiko 7N00-7B40 features the following functions:
Ronda Reference # | Shock System | Buy |
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Dimensions | GR Reference # | End Type | Buy |
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1.60 x 0.075 x 240 x 7.5 mm | Auto | Buy mainspring | |
1.60 x 0.075 x 240 x 7.0 mm | GR4437X | Auto | 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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