One full tour a month: A conversation about the GF Factory Longines Master Collection Moon Phase 40 mm


The Longines Wristwatch model is produced by the leading Super Clone manufacturer workshops with a solid stainless steel case, 42 mm diameter and Miyota 9015 high frequency movement architecture. It is among the most successful 1:1 super clone watch reviews on the market, with its sapphire crystal AR coating glass, original case tolerances and detailed workmanship.

Let me briefly mention; GS Factory had previously produced this model in the market, but it was a mediocre job. In my opinion, the GS Factory version was a little lacking, a lot lacking. It was modified from the 9015 movement and functionally did not match the original in some places, because the moon phase rotated one full revolution per day. However, in the original, it skips one step a day, one step every day; Just like in the sky, the moon decreases a little each day, decreases a little more the next day, decreases a little each day, eventually turns into a crescent, then the cycle is completed and it reaches the full moon and continues to change slowly. The GF Factory produced moon phase that we will talk about today is modified from the 2892 movement; Its function is exactly the same as the original, including the dimensions. First, let's take a brief look at its appearance.

Its thickness is 11 millimeters, the same as the original. First, let me briefly touch on the appearance details. Appearance 40', the size of a standard classic watch; It sits comfortably on the wrist. Thickness is 11, neither thin nor thick, a completely standard classical watch size. The sapphire glass is extremely clear, the material is stainless steel, the same as the original; The bracelet is also stainless steel. On the leather strap side, calfskin is used, whereas the original is crocodile leather. This used calfskin to control the cost and make the product; relatively not that good. If you want a higher quality or feel, I suggest you pay another XXX and replace it with crocodile leather, it will be much better.

The middle of the case is brushed and both sides are polished. Workmanship is again at an ordinary level; It's a normal, not too complex structure that circulates in the watch world. The obverse has this wheat ear pattern relief; Frankly, it resembles that biscuit pattern feel of AP. This is a pattern in the shape of a wheat ear, it looks very three-dimensional and nice when viewed. So are the engraved writings; In fact, the texts were printed on it with silk screen according to these indentations and protrusions. That black part downwards from the front face is not such a sunken, flat surface; The original is like this too. When you look at it from the front, you think it is flat, but when you look at it from the side, you notice it; It has a three-dimensional, uneven structure. These figures are oil print; When you hold it up to the light, its reflections are very visible, it reflects, this is the source of the texture. If there is no reflection on a watch, or if it is made on a very poor, flat surface, there will be no three-dimensional effect, it cannot be embossed and it will not reflect. This is that feeling; That shiny, oil-like effect of oil printing.

Setting function: turn it directly up, you can set it up manually, just like charging a phone. Then pull it out one step; Turning it up sets the moon phase, turning it down sets the date. You may feel a crunchy feeling and sound in your hand.

As for the dial surface, let me briefly talk about the moon phase: The moon phase at the 6 position. That ring pointed by the small hand represents the date and moves one step per day in synchronization with the moon phase. That long seconds hand is moving; The hour and minute hands are very simple.

Let me talk about a different point of this GF Longines Master Collection Moon Phase model. While making this quick adjustment, everyone needs to pay attention to a time interval: the moon phase does not skip at 12 o'clock at night, and the quick adjustment should not be made at this time. If you set it to afternoon and skip the moon phase, then set the time to around 3:00 and then quickly set it, there will be no problem. So sometime between after waiting for him to finish the jump and 6pm when the jump ends, so roughly around 3:00am~6:00pm. After 9:00, settings cannot be made again, this is a bit complicated. Generally, you don't need to worry about how to adjust the moon phase, just make sure the date is correct; The ornamental value of the moon phase outweighs its practical benefit. OK, the function is a bit complicated; If you are careless, it may cause the gears to jam, and minor problems may occur, such as the moon phase not skipping, the month not skipping, or the date not skipping.


The entire structure, including the rotor, gives the effect when worn on the wrist, exactly the same as the original. I think this model is the best selling version, including the original. Arabic numerals look really nice. The black dial suits people with a flashier style, I can't carry it; The black dial looks a little more assertive.

The inside of the folding buckle is also the same as the original. There is code engraved on the back, also English logo; All of them have codes. This little detail, the logo, is very well done here; There is also the Longines logo. Size 40 is basically a size that 85% to 90% of people can wear comfortably; Really very friendly and balanced.

Is there any color difference on the blue dial?
There is. Forget which factory did it, even VS Factory, which is the best, either wants to do it but does not dare; There is that little difference in everything that has color. Even if it is the same original, you will see different color differences in different countries, different batches; There is also color difference in products prepared by different factories and not produced from a single bucket of material, this is 100% true. Actually, the blue dial is not bad. First of all, blue should definitely not tinge to purple; This isn't bad, as you can see it doesn't tinge to purple, it will do just fine.

Personally, I like the white dial the best; If I had to buy one, I would choose a white dial first. As far as I have told you at length, this section ends here. I hope this article was useful to you. We will share more detailed disassembly, real shot review and real-replica comparison in the future.
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Conclusion & Detective Verdict
As demonstrated in our technical review of the Ayda Bir Tam model; the optical tolerances of the case, dial typography, and stable operating performance of the movement elevate this model to the pinnacle of its category. With its wrist ergonomics, premium material quality, and micron-level finishing precision, it stands as a flawless choice for collectors.
Frequently Asked Questions (FAQ)
Which mechanism is used in the Once a Month Full model?
In this model, the model's high stability integrated caliber or Swiss-norm Clone movement is used; Deviation tolerance is in the range of 2-5 seconds per day.
What is the case material and stainless steel quality?
Made from solid 904L/316L stainless steel with high corrosion resistance; It exactly reflects the original feeling of weight and texture.
Is there AR coating on the sapphire glass surface?
Yes. There is a colorless double-sided AR coating on the scratch-resistant sapphire crystal glass surface to prevent glare and reflection.
How is the waterproof performance?
With its seal-tested crown system, it is fully resistant to pressure up to 50-100 meters and daily water contact.
Does Saat Dedektifi have expertise assurance?
All technical controls, timegrapher measurements and case tolerances received full marks from Saat Detective expertise standards.

