As I said, I have a similar build going on. Seans case has some issues. biggest are the engravings are incorrect. 16610 no 16610T, and the serial is a late M serial which is inconsistant with a non rehaut engraved m serial.
anyway, I weighed buying the rep 3135, and decided on a 2892 with a stilty spacer and gen date wheel. I needed to know that I would never have issues with the movement, and by using a gen swiss movement, I think I have that.
the bracelet you show is very similar to mine, mine had zero gap at the lugs, but the back of the SEL had the same weird lip as yours.
I need to contact TC about his bracelet. it looks closer to gen than any other ive seen.
your build is so amazing. throw a nato on it and no one could call you in it.
thanks for sharing your build. its members like you that make this place so great!