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That is a really well written article. I did a review on the Magrette Moana Pacific Pro Black/Steel last year which was my first experience with the STP movement. My general observations from a layperson perspective are pretty consistent with this Nodus article. Here I was comparing first to the Miyota 9015 (previously used in the MPP lineup) but also referenced the 2824-2.

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  • Subjectively there is slightly less rotor noise [with STP vs 9015]. More to the point the STP is like the ETA 2824-2 in that rotor movement is more controlled/damped and comes to a stop pretty quickly, whereas the 9015 will continue to spin freely.
  • Date transition is much quicker [with STP vs 9015]. On the STP it will start to shift just before midnight, although still not as precisely as the 2824-2, so there is little "in between" time each day. In comparison the 9015 date (annoyingly) starts to transition shortly after 11PM, and as such spends most of the last hour of every day in mid-shift limbo.
  • The seconds hand sweep [with STP] is on par with the 9015, although I have always felt the 2824-2 appears a bit smoother in its rotation despite sharing the same beat rate. That aside the STP winds and sets more smoothly than the 9015, it's more taught along the lines of the 2824-2.
  • The crown position detents are pretty short, meaning there is not much extension and thus distinction between positions 1 (hand winding), 2 (date) and 3 (time) and it can be tricky to get that in-between notch. I think the 9015 has a bit more play in this regard, a little easier to catch that second position, and the 2824-2 the best of the bunch. This is purely subjective, how that differs from sample-to-sample or person-to-person remains to be seen.
  • Slightly longer specified reserve with the STP (~44 hours) vs. the 9015 (~42 hours) or 2824-2 (~38 hours) - nothing mind blowing, won't get you through a weekend, but right around where you would expect. I did not bother checking real-world reserve, don't care that much. Can't comment on relative winding efficiency, no idea if there are any hand-winding time-bombs as has been noted with the 2824-2.
  • The crown is nicely damped when you press it back into Position 1 (winding/neutral) - it softly clicks back into place compared to the 9015 which is a bit more jarring. The advantage is that you can close off time setting without inadvertently jumping the minutes hand.
  • Whether or not this has practical relevance, the movement junkies may find it interesting to note that the STP1-11 includes both Incabloc shock absorption and a Nivaflex NM mainspring. Interestingly, with the 2824-2 it is not until you get to Top/Top Chronometer grades that Incabloc and Nivaflex NM are used (Etachocs/Nivaflex NO are standard for Base/Elabore) whereas with the STP you have them right out of the gate. What does this mean for real-world performance? Not a clue. But it's nice to know that the STP uses components that are on par with the higher grade Swiss workhorse benchmark.
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For accuracy I have found my different instances of the STP can be as tight as 1-2spd up to 8spd. I don't think I have seen one in double digits. Strangely the one 2824-2 that I have (ticking inside a Deep Blue Daynight Recon II) runs at about +13spd. I don't get all knotted up about accuracy, but I do expect single digit variances. I have never had an issue with any STP movements nor my 2824. I also have Selitta movements inside two Oris watches: previous generation Aquis and 42mm Divers Sixty-Five. The Aquis runs into double digits (about +12spd) while the Divers Sixty-Five incredibly is less than +1spd.

The point Nodus makes about QC vs out-of-the-box performance is well taken. All of these movements are undoubtedly capable of exceptional accuracy and performance, but untouched you never know. I think there is something to be said for smaller brands (I loathe the term "microbrand") making the leap to ETA or higher-grade ETA given the fundamental history of performance/reliability but also given that not all will have the resources to fully inspect and/or adjust each movement. That extra materials cost up front may well pay off with fewer potential issues down the road. Future supply, of course, will be murky.
 

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Very interesting. Thanks for sharing. I am not that familiar with many microbrands. Is that type of QC when it comes to movements solely down to money? Do they just not have the capabilities at that level or is it something they forego to keep their prices under control?
 

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I actually found the article to be a fluff piece with remarkably low information density with regards to an actual comparison between the two movements. There is also absolutely no evidence cited to justify the conclusion made in the article that the STP movements are superior to ETA movements, and the claim that the higher failure rate of STP is due to the poorer QC of the watch manufacturers that use such movements.
 

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The article itself could have been more informative. I got the feeling that the author was hesitant to speak openly about the nitty-gritty of QC-off-the-factory and failure/return rates.
 

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I have a watch from one of the well respected micro brands with the STP movement. The watch always had a lot of resistance when hand winding and after a few months would not restart after pushing the crown back in. The owner of the micro brand told me there were lubrication issues with the STP so I sent the watch back to him for repair. Upon return, it was slightly better but after a month the stem broke. I have had quite a few watches over the years and this is the only time I've broken a stem. My local watch tech replaced the stem and managed to adjust it so the winding effort is much easier. I also have a watch with the ETA 2824 and the winding resistance is also noticeably stiffer than any of my Seiko or Citizen watches so that may be inherent in the design of the STP and ETA.
Hard to draw conclusions on my limited experience though.
 

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I actually found the article to be a fluff piece with remarkably low information density with regards to an actual comparison between the two movements. There is also absolutely no evidence cited to justify the conclusion made in the article that the STP movements are superior to ETA movements, and the claim that the higher failure rate of STP is due to the poorer QC of the watch manufacturers that use such movements.
I agree. First, it barely mentions the higher grade 2824's, and worse, disses ALL 2824 pieces by lumping them into one group. Top grade's adjusted to 5 positions, IIRC, and the daily rate is +/- 4 seconds; that's something rather different from a standard grade. Then there's the serious passive-aggressive condescension.

Don't get me wrong. Seen other articles that say the 1-11 is a good movement. This article's taking the attack dog approach, tho.
 

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I agree. First, it barely mentions the higher grade 2824's, and worse, disses ALL 2824 pieces by lumping them into one group. Top grade's adjusted to 5 positions, IIRC, and the daily rate is +/- 4 seconds; that's something rather different from a standard grade. Then there's the serious passive-aggressive condescension.

Don't get me wrong. Seen other articles that say the 1-11 is a good movement. This article's taking the attack dog approach, tho.
Written by the owner of a microbrand that uses the STP instead of ETA. Of course it's going to do its best to shed the best possible light on the STP.
 

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The 2824 and its clones all seem to be stiff to handwind. The Sellita version is also pretty stiff. I think it's a gear ratio thing.
Maybe it's the gears ratio like you said.

Using bigger crown will make the winding much easier.
 

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I've owned two STPs, two Elabore 2824s, and several 9015s. The STPs are bi-directional and thus don't free spin like the unidirectional 9015. So while you're more likely to hear the 9015 rotor, IMO the rotor noise that the STP does make is considerably more unpleasant. It has kind of a metallic, scraping sound. I never measured my STP watches for accuracy. I did hand wind them because I don't think the STP and Sellita have the same hand winding issue as the ETA itself. The winding action on the STP is definitely stiffer and "clicky" compared to the 9015 or the Seiko 6R21, neither of which click at all. I never had a huge problem differentiating between crown positions on my STP watches, they're certainly nowhere near as bad as say my SKX in that regard. That being said, the crown on my ETA powered Evant thunks between positions with a fair amount of resistance, so you definitely know exactly where it is.

Service intervals are definitely shorter on the STP than the Miyota. I would expect at least 10 years out of the 9015 without touching it, whereas the STP should go in after 7.
 

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I am with @Mleok.

The article pointed to a few technical differences and then make a whole lot of unsubstantiated claims. They had a lot of 1-11s fail the QC procedure and he goes from there to conclude that claims about the 1-11's unreliability are inaccurate? Does not compute.
 
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