Altrax Mainspring No. 108 – 1.20 x 0.075 x 6.5mm – Incassable / Unbreakable

Altrax Mainspring No. 108 – 1.20 x 0.075 x 6.5mm – Incassable / Indéformable – Swiss Made NOS

Description:
Vintage Altrax mainspring No. 108, made in Switzerland. This high-quality “incassable / indéformable” (unbreakable / non-deforming) mainspring is precision-engineered from a white alloy to provide consistent torque and excellent resistance to set or fatigue. It comes complete in its original Altrax box with specification label intact.

Specifications:

• Brand: Altrax

• Reference: No. 108

• Width: 1.20 mm

• Strength: 0.075 mm

• Length: 6.5 inches

• Material: White alloy, non-magnetic, anti-corrosive

• Type: Incassable / indéformable (unbreakable, non-deforming)

• Condition: New old stock (NOS), unused, supplied in original packaging

Condition Note:
This is new old stock (NOS) — unused and complete in its original box. The outer packaging shows only light ageing, and the mainspring itself is clean, bright, and well-preserved.

Summary:
Original Altrax unbreakable mainspring No. 108, Made in Switzerland, supplied in its original packaging. A top-quality vintage spare ideal for restoration or professional watch repair.

Shipping:
As usual, this item will be packaged carefully and dispatched with tracking. International shipping is available through the eBay Global Shipping Programme (GSP).