| 摘要 |
<p>The subject of invention is a wristwatch casing featured with fastening of the casing to the chain so that they can be freely turned in relation to each other around their longitudinal axis: the casing is made of two parts a) and b) assembled together with two decorative bolts 1l and 2f. Between the contacting surfaces of the two parts there are made two hemispheric hollows 6j, 7k, 10n and 13r in which there are located two frameworks c) and d) with spherical pivots 14s and 15t on both ends that are designed for fastening of the watch-chain to the casing allowing longitudinal turning in relation to each other.</p> |
