[Audemars Piguet Watches] ZF's palace-class AP Royal Oak series 15400 all-in-one machine CAL.3120 The version of the previous generation is already outstanding The all-in-one computer CAL.3120 launched this time is once again in line with the original version It can be said that it is the only extreme version 15400 currently on the market Integrated case and octagonal porthole bezel The balance wheel position of the newly developed all-in-one CAL.3120 corresponds to the genuine product at 7 o'clock Flat hairspring . The gears and barrel on the deck are truly movable and usable Power reserve time consistent with the original's 41 hours ZF 15400 is new and fully upgraded Let you fall in love at first sight You can have it at the age you like