From what you are saying, Matt, it sure does sound like the SA3135 you were comparing to the Yuki was a V1, not V2. I say this because I have also had a V1 SA3135 and a Yuki side by side, I will try and get one of these watches with the V2 SA3135 in, and get some good detailed strip down documentation with plenty off photos to either prove, or disprove the aforementioned claims by the op.
I'm not in any way saying you are wrong @chefcook, I just want to find out for absolute certainty they the V2 SA3135 is indeed a Yuki or not, if it is, I would indeed be very happy about it as I could buy watches with this V2 fitted, and part them out