Lug-to-lug

Lug-to-lug is the length of the watch case from the tip of the top lugs to the tip of the bottom lugs.

It often matters more than case diameter for how a watch fits and looks on the wrist, because it determines whether the case overhangs a smaller wrist.

Include it in listings. Buyers who can't try a watch on rely on this measurement to judge fit.

Measure it straight across rather than along the curve of the case, and say which way you measured, so buyers can compare it with watches they already own.