This Citizen watch is great for men who love sports and outdoor activities. Wear it when you're running, swimming or just hanging out. It has a 43.5mm diameter case and 12mm thickness, which is a good size for most wrists. The eco-drive technology means you don't have to worry about changing batteries often. The brown dial and calf leather strap give it a stylish look, and it can withstand water up to 100m, so you can use it in various wet conditions.