MB&F caliber SP One
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SP One description
SP One movement developed in-house by MB&F, featuring signature balance wheel and inclined time dial.
Manual winding mainspring barrel
72 hours power reserve
Superlative hand finishing; internal bevel angles highlighting handcraft; polished bevels; hand-made engravings, anthracite bridges (ruthenium finish).
Black DLC inclined dial
Balance frequency: 2.5Hz (18,000 vph)
Number of components: 191
Number of jewels: 31
