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Return To ShopThe Laco 550 is an open face calibre movement that offers the optional Breguet hairspring. It features varying bridge shapes and is believed to have a probably left-handed ratchet-wheel screw. Not much is known about the differences between calibres 231, 235, 239, 243, 249, 255, 259, 265, 271, 277, 447, 449, 471, 477, and 508, which are likely just catalog designations for different bridge shapes. The Laco 550 movement is equipped with the following functions: stem wind and set, as well as sub-second display.
The Laco 550 features the following functions:
Dimensions | GR Reference # | End Type | Buy |
---|---|---|---|
1.40 x 0.070 x 180 x 6.0 mm | Manual | Buy mainspring | |
1.40 x 0.065 x 200 x 5.5 mm | GR3567 | Manual | Buy mainspring |
1.40 x 0.070 x 180 x 5.5 mm | GR3574 | Manual | Buy mainspring |
Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) | |
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