Check the listing for details. Atmos Caliber 519 526 528 540 Replacement Suspension Spring. Condition: New. Listed at 33.99 USD. Replacement suspension spring for Atmos clocks. Fits all Calibers except the Reutter Atmos. It is 9 inches long. This is the spring material only, you will need to reuse the fittings from your old suspension spring. Note: you may need to remove or install timing weights to regulate your clock after replacing the suspension spring. This is due to mass variations in the pendulums during production. Do not attempt replacement unless you know exactly how to do it. Atmos clocks are very sensitive and require special tools to work on. It is very easy to cut the spring during installation. Returns only accepted for unopened packages. International Buyers – Please Note: Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility. Please check with your country's customs office to determine what these additional costs will be prior to bidding or buying.