- A2836-2 = Asian clone of the ETA 2836-2
- A3135 = Asian clone of the ETA 2836-2 that is made to look like a 3135.. except it doesn't fool anyone and I heard various fail stories to do with it. Not worth the extra money
- SA3135 = Super Asian 3135 clone that is found in Noob and BP Rolex reps. The current version is made more reliable than the older ones from what I have read. But these movements have no spare parts (even the stem has proprietary design) - except for maybe the reversing wheel as I have seen domi fit gen ones into a SA3135 with some mods. Out-of-the-box reliability seems to be much higher than SH3135
- SH3135 = Shanghai 3135 clone (found in JF reps, 90% of gen and aftermarket Rolex 3135 parts can be interchanged into this movement. But out-of-the-box reliability varies so you may expect servicing)
Conclusion:
- If you want a movement that is reliable in the long term with less maintenance hassle... then get a watch with A2836
- If you want a movement that is reliable in the long term with GENUINE FUNCTIONALITY (i.e. SA3135 and SH3135), then I think SA3135 marginally wins over the SH3135 because it seems like the SA3135 is more reliable out-of-the-box. But bear in mind spare parts for this movement is impossible to find