

This Bergeon 5537 is a high quality case opener designed like a watch wrench to open Rolex and other grooved, waterproof case backs. It features six precision made dies that are perfect for opening oyster-shaped Rolex watch case backs. The dies fit oyster-shaped case back sizes: 18.5 mm, 20.2 mm, 22.5 mm, 26.5 mm, 28.3 mm, and 29.5 mm. The handle provides you with a well balanced, comfort grip with plenty of power to make opening and closing watch case backs safer and easier than ever.