Altrax Mainspring – 1.60 x 0.0825 x 7.5mm – Incassable / Unbreakable – Swiss Made NOS
Description: Vintage Altrax unbreakable mainspring, marked “incassable / indérangeable” (unbreakable / non-distorting). This quality Swiss-made spring is precision-engineered for smooth, reliable power delivery in mechanical wristwatches. It comes in its original clear plastic case with specification label intact.
Specifications:
Brand: Altrax
Type: Incassable (unbreakable) mainspring
Width: 1.60 mm
Strength: 0.0825 mm
Length (approx.): 7.5 inches
Material: White alloy, anti-corrosive, non-magnetic
Condition: New old stock (NOS), unused, supplied in original Altrax packaging
Condition Note: This mainspring is new old stock (NOS) — unused and complete in its original case. The packaging shows minor age discolouration and light handling marks, while the spring remains clean and untarnished.
Summary: Original Altrax “Incassable / Unbreakable” mainspring, Made in Switzerland, supplied in its original labelled plastic case. A fine-quality vintage spare ideal for traditional watch repair or collection.
Shipping: As usual, this item will be packaged carefully and dispatched with tracking. International shipping is available through the eBay Global Shipping Programme (GSP).
