A&S8000 Ruthenium

Exclusive Arnold & Son mechanical tourbillon movement, hand-wound, 19 jewels, diameter 32.6 mm, thickness 6.25 mm, power reserve 80h, 21,600 vibrations/h. Movement decoration: nickel silver movement, NAC grey treated bridges and black Ruthenium treated main plate with superlative Haute Horlogerie finish­ing: hand-chamfered bridges with polished edges, fine circular graining and A&S specific waves decoration, circular satin-finished wheels with hand-chamfered and polished edges, screwed gold chatons, mirror-polished tourbillon cage and bridge, screws with bevelled and mirror-polished heads.