Common mistakes when lighting watch 3D models include over-lighting fine details (washing out engravings/logos), ignoring material properties (e.g., no specular highlights for metal), and uneven light distribution (shadows between lugs or unlit bands).
Over-lighting hides small features like dial textures or brand marks. Not matching lights to materials—e.g., no sharp highlights for metal or soft glow for glass—makes the model unrealistic. Uneven light often misses key areas (band edges) or creates harsh shadows.
Beginners can try a soft key light on the dial, a subtle rim light for the case, and test light-material interactions—this avoids issues without complex setups.