The most popular AP replica (by far) is the Royal Oak (RO). There are two replica AP movements, one for the RO 15400: the clone 3120 movement by Z Factory (ZF). And one for the RO 15500: the clone 4302 movement by APS Factory (APSF). The alternative to these cloned movements is the Japanese Miyota 9015 movement.
The clone 3120 movement is found in both the Z Factory (ZF) and APS Factory (APSF) AP RO 15400 replicas watches at present (summer 2022). However, both factories used a decorated Miyota movement several years ago before the clone movement became available. So be careful when buying an AP 15400, just because it’s from ZF or APSF doesn’t necessarily mean that it has a clone movement.
The clone movement can be distinguished from the Miyota by the position of the balance wheel at 8 o’clock vs. 5 o’clock on the Miyota. Furthermore, the Miyota has a non-function shock setting without a spring on the balance bridge, whereas the clone has a functional shock setting on the balance bridge.
Unfortunately, both the clone movement and the Miyota 9015 have a slow date change at midnight, whereas the genuine AP 3120 movement has an instant date change at midnight.
Clone AP 3120
The Miyota 9015 is a reliable workhorse movement, and older / lower end AP 15400 replicas used a decorated version of this movement. However, the clone 3120 movement is reliable and is a more authentic option over the Miyota if you’re looking for a genuine appearance through the transparent caseback.
Miyota 9015 decorated to look like an AP 3120
The clone 4302 movement is new (as of summer 2022), but appears to be an excellent movement. The initial review by a watchsmith at RWI said that the movement is on par with the Noob Daytona 4130 movement (the 4130 Daytona movement is widely considered to be the best clone movement ever made, so this is VERY high praise). Like the genuine AP 4302 movement, the clone features an instant date change at midnight. The quality of this movement makes it the no-brainer choice for an AP 15500.
This movement is used in both the ZF and APSF version of the AP 15500, however, the ZF version has a spelling error in the engraving / printing on the back side of the movement (the word JEWELS is spelled JEWEES on the ZF version as of August 2022). This may be something that gets corrected soon, however, it’s worth checking during QC to ensure this error is not present.
Clone AP 4302
The Miyota is no longer a good choice for the AP 15500 due to the fact that it has a slow date change, and while it is reliable, it is now competing with an extremely high quality replica movement.
Miyota 9015 decorated to look like an AP 4302
There are only two clone movements available for Patek reps, the caliber 324 for the Nautilus 5711 and Aquanaut, and the 240 for the Nautilus 5712. All other Patek reps use a Miyota or another Asian movement.
Both the 5711 Nautilus and the 5167 Aquanaut share the same Patek Philippe caliber 324 movement. This movement has been cloned and is available in reps from 3K Factory (3KF). However, older Aquanauts use the Miyota. For the 5711 Nautilus there is a version of the Miyota that has been well decorated and rotated so that the balance wheel appears to be in the correct location compared to the gen 324 movement. However, all of these movements have a slow date change at midnight, whereas the genuine movement has an instant midnight date change.
The Clone 324 movement can be found in 3K Factory reps of the Nautilus and Aquanaut. This is a good movement, but doesn’t have a very large power reserve and requires a large amount of winding or rotor spinning (possibly due to non gen-spec gearing in the automatic module). The movement can be identified and differentiated against the rotated Miyota by the functional main train wheels visible above the balance wheel which are not present in the rotated Miyota.
3KF Clone 324 movement in an Aquanaut
3KF Clone 324 in a 5711 Nautilus
The Miyota 9015 is a common movement that has been discussed above, it is often found in lower end or older Patek reps. It is reliable, easy & cheap to service. It doesn’t have an instant date change at midnight. And it suffers from a loud rotor. This movement is easy to distinguish from the clone 324 because the balance bridge (cock) is anchored on the crown side which is reversed in the clone and gen movement. There are also noticeable differences in the screw and ball bearing assembly of the rotor at the center of the movement. This isn’t a bad movement if you don’t really care about an authentic look, However, given the open caseback on Patek watches, the clone or rotated Miyota are better options.
Miyota 9015 decorated to look like a PP 324
PP Factory (PPF) has developed a rotated and well decorated Miyota variant that looks more similar to the gen movement than an undecorated Miyota, but is still noticeably a worse imitation than the 3KF clone 324 movement discussed above. This movement is easy to differentiate from the clone 324 movement due to the lack of main train wheels above the balance wheel. Also, the fake “jewels” where the main train wheels should be, are red and the rest of the functional jewels in the movement are purple. The rotated Miyota also doesn’t have its rotor running on ball bearings, whereas the clone and gen both do. The 3KF clone movement is a better option if you want a more gen-like rep.
Rotated Miyota 9015 decorated to look like a PP 324
The 5712 is a Nautilus with a lot of complications. The gen model features a power reserve indicator, small seconds, date, and moon phase indicator. Furthermore, the genuine Patek 240 caliber features a micro-rotor to keep the movement incredibly thin. With all of this complication it is truly impressive that PP Factory (PPF) has managed to build a fully functional clone movement which has only minor cosmetic differences from the genuine Patek 240 caliber. The clone movement doesn’t appear to be available exclusively from PPF, as it has appeared in 5712 reps from GR Factory (GRF) as of summer 2022.
The clone 240 movement is an impressive feat of engineering. This is a thin movement with many complications. This movement is still very new (as of summer 2022), and as such, there is not yet a consensus as to its reliability, although an initial review by a watchsmith on RWI confirmed that the build quality was good, and there were no surprises.
Clone PP 240 movement
There is an old version of the 5712 that comes with a decorated generic Asian 23 Jewel movement. This version is much thicker than the gen which makes rep 5712s with this movement 10.5mm thick vs. 8.4mm thick for reps using the clone. Also, this movement doesn’t have a functional power reserve indicator. With the availability of the clone 240 movement, this is not a recommended option.
Miyota 9015 decorated to look like a PP 240
Richard Mille watches are extremely complicated and use many exotic materials. So far there has only been one attempt at a clone movement for a Richard Mille: a clone movement for the RM 055 by BBR Factory of the RMUL2 movement. Previously all RM055’s used a decorated version of the Seiko NH05A movement.
The clone movement is impressive, but flawed and unreliable. This is a movement that should probably be avoided until there is an improvement to its reliability. The movement looks considerably closer to the gen RM movement than the NH05A movement which is used in other RM055 replicas. However, there are obvious flaws, for example the balance wheel shock setting jewel of the clone movement is purple, whereas the gen jewel is clear / white.
More worryingly, there have been many reports of this movement arriving dead after a watch was shipped from a TD to a customer. Additionally, the movement has significant stuttering of the second hand due to backlash between gears.
While this movement is an impressive feat of engineering, this movement is not currently recommended.
RM 55 clone RMUL2 movement
The NH05A movement is well decorated and dressed up to look like the gen RM055 movement, but it is obviously not genuine, and that fact is on display due to the open worked design of the RM055 case. This is a reliable movement. However, a gen RM055 is a roughly half million dollar watch, unless you own a Ferrari, nobody will need to look at the movement to know that your RM055 is a rep. If you like RM reps, buy them, wear them, enjoy them, and don’t worry about how real or fake the movement looks.