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Return To ShopThe Osco 78 is a manual wind mechanical watch movement from the mid-1940s. It features a sub-second hand function. While similarities and differences between other Fontainemelon movements are not known, the specific technical details and characteristics of the Osco 78 remain undisclosed.
The Osco 78 features the following functions:
Dimensions | GR Reference # | End Type | Buy |
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1.60 x 0.080 x 250 x 7.5 mm | Manual | Buy mainspring | |
1.50 x 0.080 x 280 x 7.5 mm | GR4078 | 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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Part Description | Reference # | Alternate | Buy |
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