3135 and 3235 datewheels are different. Also make sure you don't get the datejust datewheel (K111 serial i think?) as that is too big for the 126610 subs.
These datewheels have gotten a little more rare and harder to find these days. I think VSF dw is fine though! If you're wanting to spend the money a gen crystal and gasket is a better option imo, but still VSF crystal is fantastic.
Thanks for the info, very useful
Yeah the VSF dw is nice, but some numbers bug me a little bit tbh. Some of the 20's especially. That's why I was thinking of replacing it. Not a necessity by any mean, just a passion project. I can't find any for the 126610 at a decent price though. Since I'm in no rush, I'll see if some will pop up in the future.
As for the crystal, I think VSF crystal fantastic indeed. I have a gen and I can't tell the difference in the crystal tbh