A must read before buying! In-depth dismantling of Factory C’s 2025 log: Is the 72-hour power reserve true or false?

Recently, the 2025 new Rolex log replica watch from Factory C (Clean Factory) has become very popular in the watch circle, especially the Shanghai 3235 movement, which is said to have an upgraded “72-hour kinetic energy reserve”. As a veteran who has been playing watches for ten years, I specially used my connections to get the latest version and spent a full two weeks doing a comprehensive test. Today I will show you whether this watch is worth buying.

1. Actual measurement of the movement: Is the 72-hour power reserve true or false?

The first thing I did when I got the watch was to test the most talked about “72-hour dynamic reserve”:

  • Actual measurement method: Manual winding for 50 turns, lay flat and let rest
  • Test results: Stopped at 71 hours and 32 minutes (room temperature 25°C)
  • Compare to old version: The version before 2024 can only last about 48 hours.

After disassembling the movement, we found the key points of the upgrade:

  1. The spring is lengthened by 15% and nano-coated
  2. The transmission gear is replaced with grade five titanium material
  3. The speed pile is changed to an exposed double pile design (gold on the left and white on the right)

In terms of travel time accuracy, the average daily error is around +10 seconds, which is much more stable than the old version’s ±25 seconds. The most surprising thing is that it supports counterclockwise time adjustment, a detail that many replica watches cannot do well.

2. Workmanship details: These are the most amazing places

Dial craftsmanship:

  • The “small bell mouth” gradient on the edge of the calendar window is processed very naturally
  • The hour markers are filled with Swiss C1+C3 luminous powder, and the dark areas are authentic ice blue.
  • The font printing is three-dimensional and full, without feeling cheap.

case strap:

  • The brushed texture of 904L stainless steel is delicate, and the chamfering and polishing will not cut your hands.
  • The platinum plated scale of the dog tooth ring is very textured
  • The whole watch weighs about 160 grams (41mm model)

Sapphire mirror:

  • The hidden crown mark at six o’clock can only be seen by using strong light from the side.
  • Scratch resistance test: scratched with a key more than ten times without any trace

3. Identify authenticity: 3 key details

  1. Fast and slow stakes: The new version has two exposed piles (gold on the left, white on the right)
  2. shock absorber: Triangular shock absorber (the genuine product is horseshoe-shaped)
  3. weight: 41mm steel model should be between 155-165 grams

There is a simple identification method: ask the seller to make a video showing the counterclockwise time adjustment function. The new version can do it, but many old versions cannot.

4. Guide to buying pit avoidance products

Be wary of low price traps:

  • Those priced below 2,500 yuan are basically older versions of the movement.
  • Those claiming to be “Dandong 3235 movement” are all fake C factories

Necessary for inspection:

  • Request real shots of the movement with exposed speed and slow piles
  • Request the 72-hour power storage test video
  • Confirm that the case weight is around 160 grams

Version selection:

  • Look for new versions that will be shipped after June 2025
  • Be especially careful with the intermediary money, it may be an old version in stock.

5. Suitable for the crowd and user experience

Recommended to buy:

  • Want to experience Rolex’s classic design but have a limited budget?
  • Practicalists who focus on long power reserve
  • Old players who like the texture of 904L steel

Consider carefully:

  • Obsessive-compulsive disorder in pursuit of perfect movement polishing
  • Users who need professional diving functions
  • Female wearers who are particularly sensitive to weight

My actual feelings after wearing it for two weeks:

  • The strap is very comfortable and does not trap any hair.
  • The night light is bright enough and lasts a long time!
  • The calendar instant jump is very simple and completes at around 00:03

Finally, tell the truth:
This watch is indeed priced at 3K yuan, but don’t expect it to look like the real thing. Appreciating it as an independent work with Rolex design elements will make you feel it is worth the money. After all, you can experience 90% of the appearance and texture by spending 1/10 of the price of genuine products, which is enough for many watch friends.


interactive topics:
Do you think replica watches should pursue the ultimate restoration, or should they have their own characteristics? Welcome to share your views in the comment area!

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