It works well. I don't know how to open it. The second hand came loose, but I still have it with me. It keeps accurate time for the hours and minutes. The Vintage OMEGA Automatic 1967 watch features a classic design with a gold bezel and silver dial, giving it a timeless and elegant appearance. This unisex wristwatch has a mechanical automatic movement, solid caseback, and a bracelet band. With stick indexes and a 12-hour dial, this dress/formal watch is a great addition for those who appreciate vintage timepieces from a reputable brand like OMEGA. The inclusion of papers and its water-resistant feature add to its value and authenticity as a classic piece from 1967.