Watch-Craft Mainspring 3053W – 1.25 x 0.085 x 7¼" – Dennison 3½ / 12½

Watch-Craft Mainspring 3053W – 1.25 x 0.085 x 7¼" – Dennison 3½ / 12½ – USA NOS

Description:
Vintage Watch-Craft 3053W mainspring, manufactured by C. & E. Marshall Co., USA. Precision-engineered in white alloy for superior non-magnetic, unbreakable, and rustproof performance. Ideal for smaller wristwatch movements that require a fine yet durable mainspring.

Specifications:

• Brand: Watch-Craft (C. & E. Marshall Co.)

• Part No: 3053W

• Width: 1.25mm

• Strength: 0.085mm

• Length: 7¼ inches (approx. 18.4cm)

• Dennison: 3½ / 12½

• Material: White alloy – non-magnetic, unbreakable, rustproof

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

Condition Note:
This is new old stock (NOS) — unused and still sealed in its original packaging. Packaging may show some light age-related wear or discolouration, and the mainspring or retaining ring may display mild tarnish from long-term storage.

Summary:
Genuine Watch-Craft 3053W mainspring by C. & E. Marshall Co., a trusted American manufacturer of watch parts. Suitable for use in small vintage wristwatch calibres requiring a narrow, lightweight spring of this specification.

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