Differences Between Open-Heart and Skeleton Mechanical Watches Open-heart and skeleton mechanical watches differ in their design transparency. Open-heart watches reveal only a small window showcasing the balance wheel, offering a glimpse of movement. Skeleton watches, however, expose most or all internal mechanisms by removing non-essential parts, highlighting full craftsmanship. Both emphasize aesthetics, but skeletons offer greater visibility. Visit https://acizemwatches.com/blogs/news/differences-between-open-heart-and-skeleton-mechanical-watches