A photograph of a watch worn on the wrist, typically used in reviews and social posts to show scale, fit, and how the piece actually sits day to day, as opposed to a studio product shot.
A wrist shot is exactly what it sounds like: a photo of a watch being worn, usually framed to show the case, strap or bracelet, and enough of the wrist to give a sense of real-world scale. It's the standard companion to a studio or macro shot in reviews, since specs on paper don't always convey how a watch actually sits or wears.
Within collector communities, the wrist shot has become something of its own genre, with certain angles, lighting choices, and props (coffee cups, denim cuffs, steering wheels) becoming recognisable conventions in their own right, sometimes affectionately mocked as much as they're used.
Specs and studio shots don't always convey how a watch actually sits or wears in practice, so a wrist shot gives a sense of real-world scale and fit that's hard to judge otherwise.
No, it's informal collector and reviewer slang, similar in spirit to lume-shot, describing the type of photo rather than any technical photographic method.
Yes, certain angles, lighting choices, and props like coffee cups or denim cuffs have become recognisable, sometimes clichéd, conventions within collector photography.