The perpetual calendar is one of the most traditional complicated functions of Swiss replica watches. The other two are the minutes repeater and tourbillon. My favorite watch equipped with perpetual calendar is IWC Big Pilot’s watch with black ceramic case.
IWC Pilot’s copy with black dial has combined the function of switching the date with the bold and sporty style of Big Pilot excellently. But the black IWC Big Pilot’s watch is so huge, which will be suitable for strong men better. The perpetual calendar of IWC is invented by Kurt Klaus, which was released in 1985. In 1980s, many watch factories began to manufacture the quartz watches. But IWC never stops developing the mechanical watches. And it was at that time IWC began to develop a new perpetual calendar.
In addition to its functions, the IWC perpetual calendar has another powerful feature. IWC combined the “one-button linkage” perpetual calendar module with the 7750 chronograph movement, which lowered the entry threshold of the perpetual calendar at that time. In 1985, it launched the special silver dial perfect knockoff IWC Da Vinci.