Spring Driven

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American clock movement replicas are not the same quality as the original but solves the problem. Thus, the clock will be working and striking as it should in a short time. Of course, these movements are made in India but are close in size to many of the American time strike units made between 1900 and 1950. Think of them… View Product

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American time-strike clock instructions apply to replicas made in India as well. Subsequently, the name time-strike means the clock will keep time and strike at the top of the hour. This section covers the basic installation for the time-strike and time only movements. However, American Time-strike clock instructions can be confusing. If you are not familiar with the clock parts… View Product

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The Loop-End clock mainspring description is a long flat spring with a loop on one end. This loop gets wrapped around the outer plate pillar of the movement. In other words, this is the type of mainspring that can be seen. It is not contained in a barrel. Likewise, if the spring is in a barrel, the mainspring can’t be… View Product

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When a mainspring breaks within a clock movement, it could cause damage. The damage could be within the movement itself or to the clock case. It is uncommon but sometimes even the sides of the wood case get damaged when a mainspring breaks. As for the movement itself, we need to check the gear teeth and the gear arbors. The… View Product

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Loop end mainsprings are measured by width, thickness, and length. These are not always easy measurements to get, and the mainspring would need to be removed from the clock. It can be a frustrating puzzle to do, and a dangerous one also. But if your learning clock repair or have time on your hands so to speak, here are some… View Product

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Barrel Number Mainspring Dimensions MM 10 17 x .45 x 1490 11 17 x .42 x 1500 20 & 56 17 x .38 x 1200 21 & 50 17 x .40 x 1200 31 12 x .34 x 1150 32 12 x .42 x 1100 33 12 x .32 x 1150 40 17 x .38 x 1100 41 21 x… View Product