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Return To ShopThe Unitas 331 is an open face calibre watch movement that was likely produced around 1925. It is part of a series that includes the 182, 183, and 254 movements, but the specific differences between these models are unknown. The Unitas 331 movement features stem wind and set functionality, as well as a sub-second complication.
The Unitas 331 features the following functions:
Dimensions | GR Reference # | End Type | Buy |
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1.50 x 0.200 x 460 x 16.0 mm | Manual | Buy mainspring | |
1.50 x 0.180 x 500 x 15.0 mm | GR4316 | 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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