This still baffles me. Look at other "Super Reps" like the Ploprof V2, or the new 111M, the new PAM and Big Bang Josh posted... or even the Jacob & Co. EPIC II. Why can't the factories make a decent Submariner? The only one who could make a really nice Sub was WM9 and he few the coop. Seriously, a freakin Sub can't be as complex as a Big Bang. And it pretty much goes for ALL Rolex models. The Daytona even with the secs at 6, the rehaut is wrong and the hands are all wrong. The only Rolex you can get that is able to get to reasonable accuracy is the vintage (mainly MBW, but I haven't checked out the newer ones). You name a Rolex model and I'll name the stoopid flaws that CAN be fixed...
Normal Sub - All bad except WM9 and WM9 V1 clone (Supreme, TW) but still has crown issues, and insert issues and the bracelets NEVER fit right EVER, EVER, EVER. Vintage MBW 1680 is hella nice for modding.
Ceramic Sub - Bad pearl, bad engraving, no gen crystal, bad hands, no AR on cyclops
GMT IIC - No AR on cyclops, hand stack, engraving
DSSD - All of them, bad pearl, no semi-matte dial - OK, so maybe the DSSD is better than most, it's still ugly
Datejust/Day-Date - All SS models have 18k stamped on the underside of the case, the 18k ones have the weight and color problems, but not bad.. I've seen a few Datejusts I like. DJ gets little respect though.
Explorer II - (see GMT II for the new ones, and the old still have hand stack issues)
Explorer I - Old one is not bad, but needs to be able to put a Clark crystal in, new 39mm Exp needs correct lume and correct hands and gen/clark crystal compatibility
Daytona - Wrong hands (too thin for new models) rehaut is too deep on SS ones. The best I've seen are the Spinmaster and DW vintage ones.
Sea Dweller - SSD had wrong rehaut, no gen crystal compatibility, other than that, not bad. Vintage MBW can be modded to look near perfect.
Yacht-Master - WM9 was near perfect, as perfect as I've seen a rep. The others... not as much. Bad CG, dial color off. The CG's on a YM almost look like a cup the crown is sitting in. WM9 got it right.
This is all I have time for now.. so /rant off