Hermle 351-050.55 an FHS Hermle Clock Movement that has a plate size measuring 120 x 120 mm and a hand shaft length that measures 33 mm. This is an 8 day Westminster chime movement with 1/4 hour chime and hour strike, key wound, pendulum - dead beat escape and 8 hammers at back. Relative to the image, the key hole spacing measures A) 48.75 mm, B) 49.25 mm, and C) 30 mm. This movement has a 55 cm long pendulum.