google一下很难？ Black tie / White Tie – For formal events, simplicity is key. Historically – it would be considered rude if you were to refer to your watch at such an event. A simple dress watch in a classic style and black leather band will mute any objections from conservative observers. Business dress – For business – go with a simple and classic styled gold or silver watch with a thin dial with limited or no complications. A dark conservative suit is best paired with a classic dress watch or a diver watch with a leather strap. Business Casual – A light colored suit with no necktie is best complimented with a high-end chrono, a pilot or even a smart field watch. Casual – If a watch has a metal band, it is considered less formal. A metal band is generally suitable for casual wear while a leather band is suitable for any purpose. Any of the watch categories can be worn with a jeans, chambray shirt and dress boots combination. Digital watches should only be worn with casual clothes or workout attire. Sports – For activities that involve unpredictable physical movements, such as sports, a dress watch would be inappropriate. The strap, case and watch dial are protected with materials that allow you to focus on the activity – no need to worry about your watch snapping off your wrist or the glass shattering mid-game.
