Hermle 131-080.23 FHS Hermle Clock Movement has a plate size that measures 90 mm and a hand shaft length that measures 33 mm. This Hermle movement features an 8 day bim bam movement with a 1/2 hour strike, key wound, 23 cm long pendulum with dead beat escape and 2 hammers and 2 striking bells mounted on the side (partially inset into the movement). Relative to the image, the key hole spacing measures A) 31 mm and B) 49 mm.