Waltham WW2 vintage watch balance wheel HAIRSPRING ONLY (for 6/0 1942 movement)

This is an inspected hairspring for a Waltham 6/0-b movement from my stock of WW2 watch parts.  The picture shows the complete wheel.  We are selling the hairspring only.  We have many parts for this A-11 pilot's watch with sweep hand, and the Ordnance variety. Note we service these and have other parts for sale. Email us with your needs.