Hermle Mechanical 75 mm Black Spade Hour with Whip Minute Hand an FHS black spade clock hand. Fits the majority of Hermle mechanical movements with the exception of models 471, and 1171. Minute hand has a square hole 2.5 mm x 2.5 mm with a length of 75 mm. Hour hand has a round hole diameter 4.5 mm with a length of 53 mm.