If you know the stuff, come to the 3K Patek Model 5168 42mm upgraded version! All-in-one machine the latest upgraded version of the clasp. Authentic mold opening and non-currency. The movement is all finely engraved with clear text to the extreme. The upgraded automatic rotor is ultra-thin and noiseless. The top version of the SC all-in-one machine is only 3.3 mm. Please look for the detailed pictures.