quattro
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20491
You might be interested by
this Sjx article, where they describe the finishing of caliber 1315 in the following way:
The movement decoration appears simple because it lacks contrast. The most obvious decorative element is the solid gold rotor, but even that has been dressed in a discreet matte grey.
But under magnification the movement is evidently finished well, especially considering the nature of the Bathyscaphe and its price. The bridges have a fine radial graining with prominent, polished bevelling.
Because the bridges are numerous, there is a substantial length of bevelling across the movement. The bevelling appears to have been first done by machine, then given a once over by a hand-held polishing tool to create a rounded, mirrored finish.
The densely arranged bridges mean that little beneath is visible, but based on images of disassembled Blancpain movements I’ve seen, I expect the hidden components to be equally neatly finished.
Best.
