This Bergeon 5537 Rolex Oyster Case Back Opener Boxed Set with 6 dies and grooved chucks is the perfect tool for watch enthusiasts and professionals. Made in Switzerland, this high-quality unit is designed for opening the case back of Rolex Oyster watches. The set includes 6 dies......grooved chucks to fit different watch sizes. Ideal for repairing or replacing watch parts, this tool is a must-have for any watchmaker or collector. The set comes in a sturdy box for easy storage and transport. The Bergeon 5537 Rolex Oyster Case Back Opener Boxed Set is a reliable and efficient tool that will make watch repair a breeze.