Black Shield Mainspring 486467 1.50 x 0.007 x 10½" Dennison 6 / 14 Tongue End

Black Shield Mainspring No. 486467 – 1.50 x 0.007 x 10½" – Dennison 6 / 14 – Tongue End – Swiss NOS

Description:
Vintage Black Shield mainspring No. 486467, manufactured in Switzerland and distributed by Swartchild & Co. This finely made mainspring features a tongue end and is crafted to Swiss precision standards, suitable for small-to-medium wristwatch movements.

Specifications:

• Brand: Black Shield (Swartchild & Co.)

• Part No: 486467

• Width: 1.50 mm

• Strength: 0.007 in

• Length: 10½ inches (approx. 26.7 cm)

• Dennison: 6 / 14

• End Type: Tongue end

• Material: Tempered Swiss alloy steel

• Condition: New old stock (NOS), unused, sealed in original wax envelope

Condition Note:
This is new old stock (NOS) — unused and still sealed in its original paper and wax wrapping. Packaging may show light wear or small marks from long-term storage, and the mainspring may display faint tarnish from age.

Summary:
Original Black Shield No. 486467 mainspring, made in Switzerland and distributed by Swartchild & Co., one of the most established names in horological materials. Suitable for small to medium wristwatch calibres, offering precise, durable performance for restoration or repair work.

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