balance springs - identification

Hello there!

Thank you for reaching out to us. We can help supply this balance but it will have to be a custom order due to its configuration. The pulley wheel is built into the bottom fitting itself and this balance features an extended cord travel as well as a metal channel length ending in 5/8" which is what makes it custom. For example, the metal channel should measure 31-5/8" long. Can you double-check that for us? Can you also confirm the quantity of balances you'd like to order?