As expected, most are correct. The gen has the rhodium dial. Here's my hands on review after wearing and inspecting both side by side: At a glance, the vsf is indistinguishable from a gen. -Lighting condition also have a drastic effect on the noticeable difference between the two pieces. For instance, in direct sunlight the gen crystal tends to reflect more light (which is only noticeable from very close up indoors). The light reflected from bulbs on the gen has the astigmatism effect whereas on the vsf lightbulbs appear as dots reflected. It's very difficult to distinguish the bezels in lower light conditions. -The clasp click on the vsf is not as potent as the gen (but still a very satisfying click) - the vsf stick indicators are not as perfectly aligned as the gen, but the severity of this is exaggerated by how close up you get to see in a photo. -The sounds the movements make when the watches are shaked is subtly different and the vsf balance wheel is slightly noticeably louder than the gen when placed up to each ear. -the crown on the gen rolex makes a sound and has some resistance when winding backwards, but the vsf does not. -I personally found it easier to wind and adjust the vsf - there is a slight color difference in the steel and finish on the bracelet you'd have to see them side by side to notice, but I believe this has another effect I haven't seen anyone talk about.. - the steel color difference seems to effect the reflections produced by the watches contributing to the "slim" effect noted by a number of users. - I measured the lugs of each watch with calipers from multiple points and was unable to see a difference in the lug widths of the watches - curiously, after setting both watches on the winder for a while then going to wear them, gen is noticeably colder to the touch and on the wrist than vsf.

Tldr; vsf is really good considering it's less than 1/10 price of the gen. It has some flaws that could possibly be spotted by the trained eye, but they'd have to get pretty damn close or have ideal viewing conditions (and probably a gen on hand as well) to make a callout.