Bergeon 5537 Wrench Key and Chuck Set for Waterproof and Grooved Watch Cases Swiss Made

• 6 grooved Chuck/Dies: 18.5 mm, 20.2 mm, 22.5 mm, 26.5 mm, 28.3 mm, and 29.5 mm
• Double ended steel handle #5537 19.5cm/7.75inches
• Storage Box with foam moldings to keep the handle and dies in

Watch Case Open and Closing Propeller Type Wrench by Bergeon. The Bergeon 5537 includes 6 grooved chuck/dies. and is designed to open watch case backs which are grooved, waterproof. The chuck/die sizes are: 18.5 mm, 20.2 mm, 22.5 mm, 26.5 mm, 28.3 mm, and 29.5 mm. Made in Switzerland.



Chuck Number ∅ A mm Number of Teeth
5523-0            18.50              90
5523-1             20.20              96
5523-2             22.50             112
5523-3             26.50             128
5523-4             28.30             144
5523-5             29.50             144