It can be seen up close or from a fair distance.
Remember, the poly count cannot be too high or else it could crash the game upon loading or cause an infinite loading screen. Although it should have enough poly to look decent.
I’m not sure if textures applied to objects in blender can be transferred over to Fallout. I do know that Fallout uses .dds texture wraps.
The watch face should have a texture of a watch face over it, and not have the hands and everything individually modeled. I made this mistake with the other watch I made, which caused it to have excessively high polygons. The inside of the watch doesn’t need to be modeled because it is covered by the character’s wrist.
Mesh files in Fallout 4 are .nif or .obj, and the game itself uses an advanced version of the gamebryo engine.
Here are two screenshots of an existing in-game watch, but it’s not the style I want.