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The new manual-wind RJ caliber RJ-7000 has 29 jewels, beats at 21,600VPH and has a power reserve of six days. RJ had wanted a long power reserve, so the large mainspring barrel has to be placed at the centre of the movement to accommodate it The tourbillon cage is directly above the centred barrel and on the same axis. Made from grade 5 titanium, the tourbillon cage, along with its going wheel train, has an open-worked design (in keeping with the spider theme). You will also notice that it is flanked by two Spider-Man mask eye openings that are affixed to the mainplate.
https://horologium.com.au/2019/10/28/ne ... ourbillon/
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