> ## Knowledge Base Index > Fetch the complete knowledge base index at: https://clockworks.crisp.help/sitemap.xml > Use this file to discover available pages before exploring further. > Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash). # What is a 1051 - 1050 Hermle Clock Movement? * [Knowledge Base](https://www.clockworks.com) * Hermle clock movement 1051 - 1050 series notes ### Article sections ## Hermle clock movement 1051 - 1050 Hermle clock movement [1050 or 1051 units](https://www.clockworks.com/clock-movement/hermle-clock-movement-1050.html) are spring driven and triple chime. They are made by the [Hermle clock company](https://hermleclock.com/) of Germany. ### The movement All the Hermle clock movements [1050 or 1051 units](https://www.clockworks.com/clock-movement/hermle-clock-movement-1050.html) have a 120mm plate size. Spring driven and triple chime movements are popular with bracket style cases. These units take a number 8 key to wind it and one wind lasts 8 days on a full wind. Also, it is available in a balance wheel version such as the [1050-020](https://www.clockworks.com/product/new-1050-020-clock-movement-by-hermle) or the pendulum version like the [1051-020](https://www.clockworks.com/product/1051-020-clock-movement-by-hermle). The Hermle clock movement hand shaft length is either 27.6mm long or 33.2mm long. Hence, the last number of the movement is indicative of this length. So, if it says 0 as the last number it has the 33.2mm hand shaft and if it has the 1 instead like 1051-021, it has the 27.6mm hand shaft. The Hermle clock movement [hammer](https://www.clockworks.com/product/clock-chime-hammer) location is either back, bottom, or side. In other words, the hammers that strike the chime rods on a Hermle clock movement can be on the back of the movement, the bottom of the movement, or on the side of the movement. ### The Chimes A Hermle clock movement will play Westminster, St. Michael, or Whittington on the quarter hours for chime options. After it plays out the top of the hour chime, it will strike out the hours. * Less cost than a cleaning * Should last 25-30 years, a repair would not * Easy to install, we can help if need be * Ships the same day [](/pics/pics-hermle-clock-movement/1050/1050explosion.jpg)