Hermle 1050-020 FHS Hermle Mechanical Clock Movement has a plate size of 120 x 120 mm and has a hand shaft length of 33 mm. Hermle 1050-020 features an 8 day chime (4/4 Westminster, Whittington, St. Michael) key wound, balance regulated, 8 hammers at bottom. Key Hole positions, relative to the image, are A) 48.75mm B) 49.25mm C) 30mm.