The original and most popular dust blower for watchmakers and collectors, the Bergeon 4657 offers excellent quality and durability, made in Switzerland. Key features of this dust blower include a PVC nozzle tip and bottom inlet valve which prevents air from entering through the nozzle. Used to blow dust and debris from watch parts, movements, and watch cases, it is indispensable for all hobbyist watchmakers and professionals. Length 130mm, Ø58mm.