I happen to have a a Yuki 7206 and will quickly compare it to my gen 7206. For almost 1/10th of the price, you decide if it's a bargain or not.
For all photos, Yuki will be on top, or on the left.
Please keep in mind that my gen 7206 (circa 1967) has had 2 links removed and possible rebuffed at some point in its life. The Yuki is box fresh.
First of all, initial impression was quite positive. Links are roughly the same length and the clasp coronet is not terrible:
Macros of the Yuki however tell another tale.
Yuki:
Gen:
Yuki coronet is a globular mess, whereas the gen has more distinctive spikes and balls (is there a name for the balls at the ends of the coronet?)
The links of the Yuki are a fraction thicker than the gen. What makes the gen so nice to wear when coupled with the sleek lines of a big crown are the thin links. The Yuki is not chunky like a 93150, but it could shed a few pounds.
As expected, the clasp stampings of the Yuki sucks donkey balls. Fonts are off and the blades are way too flat. They should have more of a curve:
Side profile of the Yuki is not bad. It's about the right width, but the clasp itself is about 1mm too short. Also, it's puzzling why the micro adjustment holes are spaced the way they are. Its so me odd logarithmic scale. Anyhow, Yuki fails here on the hole placements:
As far as endlinks go, the Yuki 80 EL's are acceptable. General shape and height are good. Could have a bit more definition with the two lines, but not a bad effort here:
Overall sheen of the Yuki is not great. It needs a good oil bath and a proper buffing with my Bergeon 6085 buffer. The corone can/should be severely buffed to disguise its shortcomings.
As for fitment on the wrist, it felt ok at first. The clasp opens and closes like the gen; in fact probably better than my 45 y.o. gen clasp, but something about the fit at the lugs felt off. Then I realized that the first link hinges a fraction higher than gen which means the first couple of links don't lie as flat on the wrist as the gen.
Yuki on the wrist:
Gen:
So is it worth the $170? Given that there are very few alternatives out there for a nice rivet bracelet and a nice gen 7206 costs $1300+, I'd say it's adequate but needs some considerable buffing to get it to be acceptable. I may give it a try for a couple months and spare the wear/tear on my gen bracelet.
All photos taken with an iPhone 6, no edits.