Progress Hairspring – For Peseux 170 / 190 “On Beat”

Progress Hairspring – For Peseux 170 / 190 “On Beat”

Description:
Original Progress hairspring, made for Peseux calibres 170 and 190 (“On Beat”). This is new old stock (NOS) and supplied in its original Progress container. Perfect for restoration or repair of vintage Swiss watches using these movements.

Key Details:

• Part: Hairspring only (no balance wheel)

• For movements: Peseux 170, 190 (“On Beat”)

• Packet brand: Progress

• Supplier ref on box: 170, 190 “On Beat”

• Condition: New Old Stock

Condition:

• New old stock vintage part

• May show light storage wear, dust, or age-related tarnish

• Supplied in original Progress container

Summary:
NOS hairspring for Peseux 170 and 190 “On Beat”. A scarce and valuable replacement part for collectors and watchmakers working on vintage Swiss watches.

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