Hermle 261-080.23 a Special Order FHS Hermle Clock Movement that has a plate size measuring 87 x 87 mm and a hand shaft length that measures 33 mm. This is an 8 day movement with 1/2 hour bell strike, weight /chain driven, pendulum regulated, dead beat escape, and 1 hammer at top of movement (chains included). This movement has a 23 cm long pendulum.