Frederique Constant Watch Manufacture Classic Moonphase Date FC-716GR3H6. Frederique Constant’s flagship Classic Moonphase Date Manufacture is restrained, elegant and contemporary, staying true to its traditional DNA even as the collection expands to include a new 40-millimetre variations endowed with the new Classic steel case. Designed for everyday wear – and for all lovers of Geneva’s watchmaking heritage – the timepiece features a new, uncluttered sunburst dial, sporting delicate hands powered by a new FC-716 movement. Developed in-house, the latter boasts a 72-hour power reserve.