Vintage Altrax Mainspring – 1.70 mm × 0.06 mm × 6 mm – Unbreakable Swiss Made

Description:
Genuine vintage Altrax mainspring, Swiss Made. A high-quality unbreakable and non-deforming mainspring ideal for smaller manual-wind wristwatches. Supplied loose in a protective sleeve (no original packaging).

Listing is for one mainspring only. Where multiples are available, some orders may not include the original outer packaging.

Specifications:

• Type: Unbreakable mainspring
• Height: 1.70 mm
• Thickness (strength): 0.06 mm
• Barrel diameter: 6 mm
• Material: Tempered unbreakable steel
• Brand: Altrax
• Country of manufacture: Switzerland

Condition:

• New old stock (NOS) – unused, supplied loose without original packaging.
• Stored in a clean protective sleeve.

Summary:
A genuine Swiss-made Altrax unbreakable mainspring suitable for smaller manual-wind wristwatches. Perfect for watchmakers, collectors, and restorers of fine Swiss movements.

Postage & Shipping:
As usual, this item will be packaged carefully and dispatched with tracking. International shipping is available upon request.