S385




Thanks for posting! The CMC in the stamp of the balance is typically seen on Caldwell balances. While the Series 385 is very likely to be the balance you'll need, there is a chance it could be another option.
I'm happy to confirm this for you, I'll just need to see a photo of the bracket in the center of the balance that connects the spring and the string. Not all brackets are interchangeable so this is an important detail to consider to ensure the longevity of the balance replacement.
In the meantime, for the 32 4 stamp, we suggest using the 3240 stamp option which can support a sash weighing 23 to 28lbs. It would be a good idea to weigh the sash and confirm that it falls between that range.