occb2: Wow!! So OCCB2 = Obsesive compulsive... what more? still need CB2 haha Thank you so much for the prompt and complete answer. I don't have much funds to start and don't even own my first rep yet, BUT IM SAVING!! so I think I will do as you suggested and get a 11610 TC sub first, and then start by buying a Y3135 and sending to misi to franken it to a even better Y3135 so it will be a keeper and reliable watch, as you say its still $1000 way from the gen R3135! I don't want to hijack the thread but could you suggest what other are must have mods for the TC? apart from the gen insert? I think the Gen xtal is not that "high yield", right? would you also send to have it made "waterproof"? any other thing you could think? I wand to buy this for my dad's birthday, he is a rolex enthusiast but had to sell his two vintage ones because of economic issues. my ultimate goal is to have one 16610 LN for him and one for me, both TC versions with some gen insert and franken Y3135, that would be so awesome!! I hope someday not too far I can do this! Just wish I had more cash right away haha