Even the crystal is over-engineered. It has sloping sides that curve downward to the outer edges https://www.rlxwx.co.uk/Collection/air-king/ of the case to the middle, resulting in the https://www.iwcx.co.uk watch not having a conventional bezel. This effect, in turn, takes four https://www.rmwx.co.uk/Collection/rm-50/ to five times more material to effectuate. Conversely, the tourbillon is surprisingly minimal in construction (comprised of 79 parts) and therefore quite light, weighing in at .25 grams. This contributes to the movement – the GP09400-1273 – offering 60 hours of power reserve.