Watch Leads have been used for at least fifty years that I know of. They disappeared for many years almost only being seen on hand lines for crabbing used by holiday makers. Now however they are back, with the increased interest in Turbot fishing and Plaice fishing certainly along the south coast has seen the rise in use of the watch lead again. Designed to disturb the sand / sea bed as it is dragged across it as the boat drifts creating small puffs of sand as it goes attracting the attention of the inquisitive Plaice and Turbot.
Ideal for use on sand banks / sandy bottom, don`t go Plaice / Turbot fishing without them.