The Citizen BI5006-81L watch is perfect for men who want to add a touch of style to their daily outfits. Whether you're at the office, a business meeting, or a casual dinner, this watch will surely make a statement. It has an approximate case diameter of 39mm and thickness of 8mm, making it a comfortable fit on the wrist. With 50m water resistance, you don't have to worry about getting it wet during light activities like washing your hands or walking in the rain.