Watch Case Opener and Centre Nut Tightener for Quartz Clocks

Oyster type watches with 6 dies.
Sizes (mm): 29.50, 28.30, 26.50, 22.50, 20.20 and 18.50.

Magnetic key inserts saves a lot of time.
European quality

Open screw type watch backs without the danger of damaging or scratching the cases.

Sizes (mm): 18.50, 20.20, 22.50, 26.50, 28.30, 29.50, 36.50, 42.00.