muiramas
Aristocrat
- 18/1/17
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The 2836/24 is thicker than the 3135 (in any of its variants), hence the back is slightly thicker and the crown sits deeper in the case (if you look from the front, hope it makes sense).
However, we talk about mms and almost impossible to notice unless you have a gen side by side.
Regarding longevity of the movements, the 3135 rarely accept gen parts unless you are talking about a Yuki/SH3135 and even in that case you can't be 100% sure that you will be able to put gen parts.
Regarding the SA3135, the list of weak parts in the initial batches is so long that I'd rather not get anywhere near one of them. It's correct that the stem tended to broke, and that seems to be sorted, but the reverse wheels are crap and can cause trouble.
On the other side, the 2836/24 has been there since the 60's so you can imagine the amount of spare parts available. The specs are really good and once regulated it can be very reliable (many high end watches have this model inside, or slight variations -talking about Breitling, Longines, Tudor, and some Omegas-). Plus, its design is quite good and simple, making it very fool-proof, so almost any capable watch smith can perform a full service on it.
Hence: ETA for me. Either Asian clone, gen ETA or Sellita, I'm not picky.
10/10 - an absolutely perfect response.