About Patek 5712, it is one of the hottest watches in the market, several factories and custom-made studio are competing on this model, like PPF, OME(disappeared), GR and some private modification studio. For people who do not have high standards, PPF has updated this watch to V3, it is good enough. But for people who really care details, the one from PPF absolutely won’t fulfill their need. However, if you are considering modifications on a 5712, be aware that this area is very complicated and full of pitfalls. I would not recommend it for newcomers.
Just in last week, a new name appeared and announced that the 5712 they are making has several important upgrades. Having read their promotional content on this watch, I really expected it. But after seeing the actual watch, I must say this is also not the best.
First, let us see the quality of the 5712 from WS.
Does it uses a SW dial like they claimed?
No. Although the dial is good and very close to SW dial, but the moon phase is totally different, look at the picture below, the left watch is WS 5712, the right watch is PPF 5712 with SW dial. The WS 5712’s moon phase background is too blue, and the star is bigger, that does not look good.
And the hands of the WS 5712 indeed have solid center hub, but its shape is not correct.

Are this watch’s eagle-beak-shaped lugs really as perfect as the factory claims?
No. Look at the picture below, the left 5712 from WS Factory indeed has a better lug shape, but compare the CNC case, WS 5712’s lug is not perfect.


The CNC case has a very good lug shape.


Although PPF improved the 240 movement engravings before, but their movement engravings still look slightly thinner and shallower than that of the movement in WS 5712. But the movement engravings on both watches do not look as neat as that of the genuine.
At last, the case thickness of WS 5712 is about 8.6mm. It is a good watch, but not as good as they claim to be. I do not suggest you spend such a big money on this watch.