Sandalloy Mainspring S6112 – 1.50 x 0.11 x 13½” – Sandvik Steel Inc. USA

Sandalloy Mainspring S6112 – 1.50 x 0.11 x 13½” – Sandvik Steel Inc., USA – For Swiss Watches – NOS

Description:
Vintage Sandalloy mainspring, reference S6112, made in the U.S.A. by Sandvik Steel Inc., Sandsteel Spring Division, Fairlawn, New Jersey. Designed for use in Swiss watches, this mainspring is crafted from Sandvik’s high-performance “Sandalloy” material — a white alloy renowned for its resistance to breakage, corrosion, and power loss.

Specifications:

• Brand: Sandalloy (Sandvik Steel Inc.)

• Reference: S6112

• Width: 1.50 mm

• Strength: 0.11 mm

• Length: 13½ inches

• Type: White alloy mainspring for Swiss watches

• Marked: “Guaranteed not to break, rust or lose power under normal conditions”

• Condition: New old stock (NOS), unused, supplied in original red paper envelope with wax wrap

Condition Note:
This mainspring is new old stock, unused, and still in its protective wax wrap. The original red Sandalloy packet shows light ageing and handling wear but remains clean and legible.

Summary:
Original Sandalloy mainspring S6112 manufactured by Sandvik Steel Inc., USA, for Swiss watches. A high-quality vintage alloy spring ideal for restorers and collectors.

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