Frederique Constant Manufacture

'Manufacture' isn't a design family, it's a movement designation, so it reads as a tier rather than a collection. It marks watches built with FC's in-house calibers, which is genuinely the brand's calling card: it brought in-house movements, and complications like a perpetual calendar, to accessible prices. But these pieces live inside other collections, a Highlife Heart Beat Manufacture, a Slimline Moonphase Manufacture, a Classic Worldtimer Manufacture. So the same watch is both 'Manufacture' and its home collection. Treat it as an in-house-movement label that cuts across the range, not a separate line.