ETA vs Clone Movements: Calibre 3135 & 3186 Technical Comparison
This record compares the original model with its ETA / super clone counterpart. This is a side by side review video. Not a sales page; The differences are shown through the movement, case and usage.
All original benchmarks · Time guide
Comprehensive Guide: What is an ETA Watch, What are the Differences from Super Clone?
In the market, the term 'ETA Watch' is generally used to refer to high-quality watches that use Swiss movement manufacturer ETA SA Manufacture Horlogère Suisse calibers (ETA 2824, 2836, 7750) or where these movements are cloned 1:1. Today, the 'Super Clone' models produced by workshops such as Clean Factory and VS Factory are far beyond standard ETA watches and offer exact copies of the original calibers.
| Criteria Examined | Original Model | Super Clone (ETA Clock) | Workshop and Test Result |
|---|---|---|---|
| Case Steel | A Quality: 304 / Zinc Alloy | Standard ETA: 316L Stainless Steel | Super Clone: 904L Oystersteel Stainless Steel |
| Mechanism Type | A Quality: Low segment Chinese caliber | Standard ETA: Asia 2824 / 2836 / Miyota | Super Clone: Dandong one-to-one Super Clone (3135, 3235, 4130) |
| Glass Quality | A Quality: Mineral glass / Plexiglass | Standard ETA: Sapphire glass (Uncoated) | Super Clone: Genuine Sapphire with Double-Sided AR Coating |
| Time Accuracy | Quality A: Deviation of ±30-60 seconds per day | Standard ETA: ±10-15 seconds per day | Super Clone: ±2-4 seconds per day (Stopwatch standard) |
| Parts Replacement | Original parts do not fit | Case and band may partially fit | Mechanism wheels and dial can be replaced with the original |
Consumer Alert: How to Choose the Right ETA Watch?
Not every product sold under the ETA watch name is of the same quality. The best approach is to disassemble the case and verify the movement caliber (Dandong, Shanghai or ETA) in the presence of a reliable watchmaker.

