> ## 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). # Hermle Clock Movement 130 - 131 ### Hermle Clock Movement 130 - 131 Hermle clock movement 130 - 131 is a round unit with a 90mm plate size diameter. They all take a [size 4 clock key](https://www.clockworks.com/product/brass-single-end-clock-key) (not included), they come [oiled](https://www.clockworks.com/product/oiler-oil) and ready to go. The most compact movement produced in the [Hermle clock movement line](https://www.clockworks.com/clock-movement/hermle-clock-movement.html). They fit into the tightest of spaces and come in either pendulum units or balance units. ### 130 - 131 Balance Wheel If it is a balance unit there will be a big balance wheel in the center and top of the unit. A balance wheel is advantageous in that it never has to be put into beat. Can move it from here to there and it will work just as it did. It does not even have to be level and can be in a room that has vibrations or shaking, does not matter. ### The 130 or 131 Clock Comes as The Movement Alone Installation is easy and we are here to help if needing it. What is being offered on this page is the movement alone with no other components such as [pendulums](https://www.clockworks.com/product/hermle-brass-rod-style-pendulum) and [gongs](https://www.clockworks.com/clock-parts/clock-chime-rods-parts.html). The movements come with the [hand nut](https://www.clockworks.com/product/german-hand-nuts) and also the [suspension spring](https://www.clockworks.com/product/clock-pendulum-suspension-spring) and [leader](https://www.clockworks.com/product/hermle-clock-pendulum-leader) if it is a pendulum unit. [![](https://storage.crisp.chat/users/helpdesk/website/-/9/5/9/1/9591a3f915bf7800/130-131-series_qot6du.jpg)](https://www.clockworks.com/clock-movement/hermle-clock-movement-130.html) ### Click on the picture to shop for Hermle 130/131 Clock Series Movements on Clockworks.com ### Clock Kit Available in The 130/131 Series We offer a [**German Mechanical Mantle Clock Kit**](https://www.clockworks.com/product/german-mechanical-mantle-clock-kit) featuring the **130-678 Hermle movement**. This high-quality 8-day, spring-driven unit includes: * [130-678 Hermle movement](https://www.clockworks.com/product/new-130-678-clock-movement-by-hermle) with two-bell strike. * Complete kit: Movement, dial, and key. * Designed for mantle clocks, no pendulum required. * Perfect fit for antique replacements. [![](https://storage.crisp.chat/users/helpdesk/website/-/9/5/9/1/9591a3f915bf7800/130-131-series-clock-kit_jpkvpm.jpg =374xauto)](https://www.clockworks.com/product/german-mechanical-mantle-clock-kit) ### Click on the picture to shop for A Clock Kit Available in the 130/131 Series The content of this website is copyright by [Clockworks Inc.](https://www.facebook.com/ClockworksUSA)