I have a yuki 5513, and the case is very nice. But, its a different case with different lugs so it would be hard to accurately comment on the 1680 case. The custom engravings are good, could be a touch deeper, but much better than the ingod engravings which are way to heavy. Crown position is pretty spot on if not totally spot on. Took gen movement, crown, tube, full bezel assembly, and crystal with perfection. I happen to think the yuki cases are very good, especially for the price.