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Swan's neck fine regulation

[[A. Lange & Söhne]] calibre [[Lange L931|L931.3]] with **Swan's neck fine regulation** (click to enlarge!)
A. Lange & Söhne calibre L931.3 with Swan's neck fine regulation
© Lange Uhren GmbH

Swan's neck fine regulation is a regulating device, consisting of a swan neck-shaped steel spring, a regulator and an adjustment screw. By turning the screw, the rate of watch can be regulated in very fine steps.

swan_s_neck_fine_regulation.txt · Last modified: 03.07.2022 15:38 by

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