Vintage Spera Incabloc Swiss Wind-Up Ladies Watch. 17 Jewels 。Elegant 1950s Spera pendant Watch with a crystal design. Features a gold-tone face and intricate details. Swiss made. Verified by a jeweler Thanks to the Incabloc system, such incidents won’t destroy the movement. This system helps preserve the accuracy of a watch and protects the fragile parts of the movement, which increases the watch\'s general reliability. In turn, a watch with an effective anti-shock system won\'t need repairs that often and will keep working properly for many years. Rare find. Can be taken to be professionally cleaned.