Double-signed is a term used to describe a watch or some other precision instrument that bears the signatures or the logos of both the manufacturer and the retailer or distributor. Double-signed watches are typically high-end, luxury items that are sold through authorised dealers or distributors and they are known for their quality and attention to detail. The double-signing of a watch is often seen as a mark of authenticity and exclusivity, and it is often used as a way to differentiate a watch from more affordable, mass-produced alternatives.