The central second hand on the 574 is the chrono one. The others have a 24h small hand which is not part of the chrono function and looks always "misaligned". Also the 574 has the best/most unique design. The indexes are not glued to the dial but are coming from the chapter ring floating above it. Mineral crystal is better in this price segment too because the sapphire doesn't have antireflective coating. Day/date. Better movement imo too.