This men's automatic watch features a self-winding mechanical movement housed in a high-quality alloy case with a solid stainless steel strap. It is water-resistant but not suitable for swimming or showering. Some models have a screw-in crown that must be unscrewed before adjusting the time or date. Always set the time to 6:00 before adjusting, avoiding times near midnight to protect the movement. For best results, hand wind the watch fully before first use. The package includes the watch only, without box or documentation.