I've always known that selfie wrist shots exaggerate the size of a watch, so I decided to find out by how much. I took the following four pictures with the same camera, adjusting the zoom between shots so that the watch would be approximately the same size each time. Afterwards, I used Photoshop to resize and crop each image so that the distance across my wrist bone was the same in every shot.This first picture was taken from a distance of 15cm (6"). Notice the the lugs on the left side of the watch overhang my wrist both top and bottom. At this distance, the nearest surface of my wrist is about 8% farther away from the camera than the watch bezel:28cm (11"):38cm (15"):At 51cm (20"), a significant amount of wrist is visible above and below the left side lugs. From this distance, my wrist is only about 2.5% further away from the camera than the front of the watch:Notice how the watch gets progressively smaller looking, relative to my wrist, in each shot.It becomes more apparent when viewing all four images side by side:In the image below, I've overlaid the first and fourth images, being careful to line up my wrist (where it intersects the watch bracelet) in the layers. You can really see the lug overhang/underhang difference here:So, typical wrist shots, which in my personal experience are taken from about 15 to 20cm (6 to 8") are grossly misleading in how the watch actually looks on you, both to yourself who will typically see the watch from about 40cm (16") away, and to others who will see it from much further away.