An exceptionally rare, authentic vintage Setting Lever Spring / detent Bridge (Resort de tirette) for the historic single-crown mechanical alarm movements produced by Langendorf.

• Official swiss Material No: 445 Setting Lever Spring / Setting Bridge.
• Compatible calibers: Fits perfectly wit6h the 12.5''' alarm movement family, including Lanco 1241, 1243 and 1244 (Lanco-Fon series) Also applies to the US-exported Gruen 910SS.
• Condition: Pre-Owned original factory component in excellent functioal condition.

Versions:

• 1241: Setting lever with screw.
• 1243: Setting lever with pusher bar.
• 1244: Minor modifications of the winding gears and train wheel bridge.

Every historical component in our vault is meticulously verified and authenticated by our WOSTEP-certified Master Watchmaker to guarantee absolute horological integrity and correct factory tolerances before shippment.

Worldwide tracked and secured shipping from Sweden.