Progress Balance Wheel & Hairspring – For EB 10½´´´ Cal. 8381 / 8391-66

Progress Balance Wheel & Hairspring – For EB 10½´´´ Cal. 8381 / 8391-66

Description:
New old stock Progress balance wheel with hairspring for EB calibre 8381 / 8391-66, size 10½´´´. Original vintage watchmaker’s part, supplied in its original Progress container. Ideal as a replacement for repair or restoration of vintage watches using this calibre.

Key Details:

• Part: Balance wheel & hairspring (balance complete)

• For movement: EB 10½´´´ cal. 8381 / 8391-66

• Packet brand: Progress

• Supplier ref on box: No. 1642M

• Condition: New old stock

Condition:

• New Old Stock; vintage part

• May show light storage wear or minor tarnish from age

• Supplied in original Progress container

Summary:
Original NOS balance assembly for EB 10½´´´ calibre 8381 / 8391-66. A useful and hard-to-find replacement part for servicing or restoring vintage watches using this movement.

Postage & Shipping:
As usual, this item will be packaged carefully and dispatched with tracking. International shipping is available through eBay’s Global Shipping Programme.