Optima Watch Repair kit (Model: 55-011) Watch case opener will open most waterproof watch cases Includes four sets of different type of chucks, must have tool for any collector Made of high quality steel to help form a tight grip when removing the metal caseback Easy to use and adjustable for different sized watches You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it!