Watches are essential wear so keep them out of the water. Socks, in the event they are necessary should be a mild shade and preferably end below ankles. There are even invisible socks in case you feel like trying something out of the box.
Leather is the king but during the summers cotton products are a lot more appealing simply because they do not cast a heavy fashion sense. Change your leather wallet from a black or brown to lighter colors and smaller sizes and keep a minimum amount of things in them. Belts should be worn according to light print shirts and be flexible in style. Try woven belts that are trendy and have a playful aura to them.
Summer is all about games and fun and keeping light is the most important task throughout that season. For men, especially during work time it is important to wear light bright colors, accessorize gently and reduce heavy fashion for a more refreshing look.