IWC tilt balances

Thanks for contacting SWISCO. This looks like one of our Series 377 Channel Balances. Compare with your old part and see if you think it matches. To determine the length you should select, you will want to measure the length of the metal channel, but not including the end attachments. Is there a stamped number on the metal channel? You can use this to select a corresponding stamp option on the product page. If you need help with this step, let us know or provide a picture of the stamp on your balance.