NuTemper Mainspring No. 260J – For Bulova 8AM–AZ – 1.60 x 0.08 x 10"

Description:
Vintage NuTemper mainspring No. 260J, made in Switzerland for Bulova 8AM–AZ wristwatch movements. NuTemper mainsprings were known for their “Superior Quality – More Power” design, providing long life, consistent torque, and smooth performance thanks to their improved low-centre and uniform temper features.

Specifications:

• Brand: NuTemper
• Part No: 260J
• For: Bulova 8AM–AZ
• Width: 1.60 mm
• Strength: 0.08 mm
• Length: 10 inches (25.4 cm)
• Material: Tempered white alloy
• Features: Undercut end tips, low centre, uniform temper
• Condition: New old stock (NOS), unused, supplied in original foil and printed envelope

Condition Note:
This is new old stock (NOS) — unused and complete in its original foil and labelled envelope. The packaging shows light creasing and age discolouration, and the mainspring may show slight tarnish from long-term storage.

Summary:
Original NuTemper mainspring No. 260J, Made in Switzerland, designed specifically for Bulova 8AM–AZ calibre movements. A high-quality vintage replacement, ideal for restorations or period-correct repairs.

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