This appears to be a vintage BWC Swiss Incabloc mechanical wristwatch, likely from the late 1960s to early 1970s. A few notable details: • Brand: “BWC Swiss” — BWC stands for Buttes Watch Co., a Swiss watch manufacturer known for affordable mechanical watches. • Incabloc: The “INCABLOC” marking indicates it uses the well-known Swiss shock protection system for the movement. • Dial style: The applied blue-and-silver hour markers and baton hands are very characteristic of the era. • Movement: Most watches like this were hand-wound mechanical movements, though some BWC models were automatic. • Case: Stainless steel with a brushed finish. • Bracelet: The expandable/stretch bracelet may not be original to the watch, but it fits the vintage style.