The size listed is the length of the minute hand from the center of the 1.8mm wide oblong mounting hole to the tip of the minute hand. 4.75mm hour hand mounting hole. With two bushings (4.0mm and 5.5mm), one that must be installed in the hour hand.
Hands for Mechanical Movements|Hour & Minute Hand Sets for Mechanical Movements|Fleur De Lys Hand Sets|Hands & Related|Clock Repair & Replacement Parts