Description: Offered here is a vintage Zenith balance wheel and hairspring, supplied in its original Renata/Progress packaging. This part is marked No. 748 for 5¼ ligne Calibre 525, and is a genuine replacement component. An excellent find for watchmakers, collectors, or anyone restoring a Zenith movement.
Key Details:
Maker: Zenith
Part: Balance wheel & hairspring
Calibre: 525
Size: 5¼ ligne
Renata/Progress packaging – No. 748
Condition:
New old stock (NOS), unused part.
Packaging shows light age-related wear.
Balance and hairspring appear in excellent condition.
Summary: A genuine Zenith balance wheel and hairspring for Cal. 525, perfect for repair, spares, or restoration projects. Hard to find in original packaging.
Postage & Shipping: As usual, this item will be packaged carefully and dispatched with tracking. International shipping is available upon request.